{"id":6517,"date":"2020-01-22T00:53:23","date_gmt":"2020-01-22T08:53:23","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=6517"},"modified":"2026-02-09T22:15:15","modified_gmt":"2026-02-10T06:15:15","slug":"iridium-vs-platinum-spark-plugs","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/iridium-vs-platinum-spark-plugs\/","title":{"rendered":"Iridium vs. Platinum Spark Plugs"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col,.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_ddbc63-c2{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column6517_ddbc63-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_ddbc63-c2 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-e9f16a  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-ab0ae4\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a, .wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a[data-kb-block=\"kb-adv-heading6517_23c472-8a\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a[data-kb-block=\"kb-adv-heading6517_23c472-8a\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading6517_23c472-8a[data-kb-block=\"kb-adv-heading6517_23c472-8a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading6517_23c472-8a summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading6517_23c472-8a\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Iridium spark plugs last long and perform well but cost more than spark plugs. They work well with vehicles with electronic distributor ignition systems.<\/li>\n\n\n\n<li>Platinum spark plugs don&rsquo;t last as long but are far cheaper and work better with vehicles that rely on waste spark distributor ignition systems.<\/li>\n\n\n\n<li>It&rsquo;s difficult to determine which one is better since both offer different advantages and disadvantages. It&rsquo;s up to you to decide which spark plugs work best for your vehicle.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Over 90% of cars on the road are equipped with internal combustion engines, and a vast majority run on gasoline. Some of the most critical components of a gasoline engine ignition system are the spark plugs, so if yours fail, it&rsquo;s important to replace them right away, and to make sure you get the right replacements for your specific vehicle and needs.<\/p>\n\n\n\n<p>But with all the different kinds of <a href=\"https:\/\/www.carparts.com\/blog\/the-6-best-spark-plug-brands-for-improved-engine-performance\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"spark plugs on the market\">spark plugs on the market<\/a> today, which ones should you get? In this article, we&rsquo;ll give you a rundown on the two most popular types: platinum and iridium.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Platinum or Iridium Spark Plugs: What&rsquo;s the Difference?<\/h2>\n\n\n\n<p>If you&rsquo;re looking to upgrade or <a href=\"https:\/\/www.carparts.com\/blog\/how-tight-should-spark-plugs-be-see-torque-chart\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"replace your spark plugs\">replace your spark plugs<\/a>, there are two common types you&rsquo;re most likely to end up looking at: platinum and iridium. These two metals offer their own advantages and disadvantages, which we&rsquo;ll discuss below.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Platinum Spark Plugs<\/h3>\n\n\n\n<p>A platinum spark plug, as its name suggests, has platinum electrodes that can handle heat better than copper. Platinum has a melting point of up to 3,215 degrees Fahrenheit. Comparing that to copper&rsquo;s melting point of just 1,984 degrees Fahrenheit should give you an idea of how long platinum spark plugs can outlast copper spark plugs.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/how-to-change-spark-plugs\/\" target=\"_self\" rel=\"dofollow\" class=\"u1abed974ea96a8580f56f4087b3dbbae\"><style> .u1abed974ea96a8580f56f4087b3dbbae { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u1abed974ea96a8580f56f4087b3dbbae:active, .u1abed974ea96a8580f56f4087b3dbbae:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u1abed974ea96a8580f56f4087b3dbbae { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u1abed974ea96a8580f56f4087b3dbbae .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u1abed974ea96a8580f56f4087b3dbbae .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u1abed974ea96a8580f56f4087b3dbbae:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">How to Change Spark Plugs<\/span><\/div><\/a><\/div><\/div>\n\n\n<style>.kadence-column6517_6fc357-ed > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_6fc357-ed > .kt-inside-inner-col,.kadence-column6517_6fc357-ed > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_6fc357-ed > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_6fc357-ed > .kt-inside-inner-col{flex-direction:column;}.kadence-column6517_6fc357-ed > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column6517_6fc357-ed > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_6fc357-ed{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_6fc357-ed > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column6517_6fc357-ed > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_6fc357-ed kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id6517_c00ea7-c4 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id6517_c00ea7-c4 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id6517_c00ea7-c4 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id6517_c00ea7-c4 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id6517_c00ea7-c4 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id6517_c00ea7-c4 > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id6517_c00ea7-c4 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id6517_c00ea7-c4 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{display:flex;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col,.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > *, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_ea20c7-a9{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > *, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > *, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_ea20c7-a9 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_ea20c7-a9 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image6517_121df4-e9.kb-image-is-ratio-size, .kb-image6517_121df4-e9 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image6517_121df4-e9.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image6517_121df4-e9 .kb-image-is-ratio-size{align-self:unset;}.kb-image6517_121df4-e9 figure{max-width:45px;}.kb-image6517_121df4-e9 .image-is-svg, .kb-image6517_121df4-e9 .image-is-svg img{width:100%;}.kb-image6517_121df4-e9 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image6517_121df4-e9\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column6517_fb1239-11 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_fb1239-11 > .kt-inside-inner-col,.kadence-column6517_fb1239-11 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_fb1239-11 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_fb1239-11 > .kt-inside-inner-col{flex-direction:column;}.kadence-column6517_fb1239-11 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column6517_fb1239-11 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_fb1239-11{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_fb1239-11 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column6517_fb1239-11 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_fb1239-11 inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\n            That being said, some vehicles with copper spark plugs can last a very long time. Copper spark plugs can last over 100,000 miles. But platinum spark plugs last a lot longer.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"750\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug-1024x750.jpg\" alt=\"2008 ford explorer platinum spark plug replacement\" class=\"wp-image-100952\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug-1024x750.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug-300x220.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug-768x563.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug-150x110.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/2008-ford-explorer-platinum-spark-plug.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">This 2008 Explorer had 238,000 miles on the odometer the first time the original platinum spark plugs were replaced. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p>There are two basic varieties of platinum spark plugs&mdash;single and double platinum. Single platinum spark plugs feature a platinum disc welded on the center electrode, while double platinum spark plugs have platinum discs on the center and side electrodes. The only drawback of platinum is that it&rsquo;s less conductive than copper, so it is inferior to the latter when it comes to performance, but you won&rsquo;t notice it at all.<\/p>\n\n\n\n<p><em><strong>Pros:<\/strong><\/em> Lasts longer than copper; replaced every 60,000 miles<\/p>\n\n\n\n<p><em><strong>Cons:<\/strong><\/em> Poorest in performance compared to copper and iridium<\/p>\n\n\n<style>.kadence-column6517_f2bb75-09 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_f2bb75-09 > .kt-inside-inner-col,.kadence-column6517_f2bb75-09 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_f2bb75-09 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_f2bb75-09 > .kt-inside-inner-col{flex-direction:column;}.kadence-column6517_f2bb75-09 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column6517_f2bb75-09 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_f2bb75-09{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_f2bb75-09 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column6517_f2bb75-09 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_f2bb75-09 kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id6517_3df3c9-90 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id6517_3df3c9-90 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id6517_3df3c9-90 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id6517_3df3c9-90 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id6517_3df3c9-90 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id6517_3df3c9-90 > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id6517_3df3c9-90 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id6517_3df3c9-90 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column6517_916f61-5f > .kt-inside-inner-col{display:flex;}.kadence-column6517_916f61-5f > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_916f61-5f > .kt-inside-inner-col,.kadence-column6517_916f61-5f > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_916f61-5f > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_916f61-5f > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column6517_916f61-5f > .kt-inside-inner-col > *, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_916f61-5f > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column6517_916f61-5f > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_916f61-5f{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_916f61-5f > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column6517_916f61-5f > .kt-inside-inner-col > *, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_916f61-5f > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column6517_916f61-5f > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column6517_916f61-5f > .kt-inside-inner-col > *, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-image, .kadence-column6517_916f61-5f > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column6517_916f61-5f > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_916f61-5f kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image6517_be8952-df.kb-image-is-ratio-size, .kb-image6517_be8952-df .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image6517_be8952-df.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image6517_be8952-df .kb-image-is-ratio-size{align-self:unset;}.kb-image6517_be8952-df figure{max-width:45px;}.kb-image6517_be8952-df .image-is-svg, .kb-image6517_be8952-df .image-is-svg img{width:100%;}.kb-image6517_be8952-df .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image6517_be8952-df\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col,.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column6517_7a1a16-b2{position:relative;}@media all and (max-width: 1024px){.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column6517_7a1a16-b2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column6517_7a1a16-b2 inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\n            Fords tended to put different spark plugs on opposite sides of the coil pack where two plugs were fired by each coil. On one side, the OEM spark plug had a platinum ground electrode (part number on the plug ended with &ldquo;PG&rdquo;) and, on the other side, the center electrode was platinum.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Iridium Spark Plugs<\/h3>\n\n\n\n<p>When it comes to handling heat, iridium is the best among the three, including copper. Iridium has a melting point of up to 4,471 degrees Fahrenheit, which is almost three times the melting point of copper. Note, however, that spark plugs never get this hot. Since iridium is harder than platinum, it offers better performance&mdash;but it&rsquo;s still not comparable to that of copper, which is the most conductive among the three.<\/p>\n\n\n\n<p>Another advantage of having iridium spark plugs is that they use less voltage compared to platinum and copper. Iridium spark plugs are easily distinguished by narrow electrode tips that look like the tip of a pen. Most iridium spark plugs feature a shaped channel on the electrode, which prevents sparks from extinguishing.<\/p>\n\n\n\n<p>Iridium is also known for its ability to create a higher quality of flame, which promotes a more concentrated spark to the cylinder.<\/p>\n\n\n\n<p>The only downside with iridium spark plugs is that they&rsquo;re typically the most expensive on the market.<\/p>\n\n\n\n<p><em><strong>Pros:<\/strong><\/em> Has the longest lifespan among the three; changed every 80,000 to 100,000 miles; requires less energy\/voltage<\/p>\n\n\n\n<p><em><strong>Cons:<\/strong><\/em> Expensive<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Iridium vs. Platinum: Which is Better?<\/h2>\n\n\n\n<p>Now that you know the pros and cons of platinum and iridium, let&rsquo;s figure out which one is best for your needs. There are three aspects to weigh when comparing iridium to platinum: cost, efficiency, and reliability.<\/p>\n\n\n\n<p>Platinum may be harder than copper, but iridium is the hardest among the three, and iridium spark plugs outlast platinum spark plugs by almost twice the mileage. The only issue with iridium is that it costs double the price of platinum with little improvements in performance.<\/p>\n\n\n\n<p>Platinum spark plugs offer a slightly cheaper but less reliable option if you don&rsquo;t want to spend as much on iridium spark plugs. It yields decent longevity but ranks the poorest in performance.<\/p>\n\n\n\n<p>Platinum spark plugs are also recommended for cars with an electronic distributor ignition system, while double platinum spark plugs best fit vehicles with a waste spark distributor ignition system.<\/p>\n\n\n\n<p>If you&rsquo;re not a fan of the idea of replacing spark plugs every 60,000 miles or so, iridium can reach up to a 120,000-mile life cycle. It offers better performance than platinum, but with the downside of a higher cost.<\/p>\n\n\n\n<p>Iridium spark plugs come standard on select modern vehicles.<\/p>\n\n\n\n<p>Still can&rsquo;t decide? Here&rsquo;s our overview of iridium vs. platinum spark plugs, on a scale of one to five stars:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Platinum Spark Plugs Rating<\/h3>\n\n\n\n<p><strong>Performance<\/strong> &ndash; &#9733;&#9733;<br><strong>Longevity<\/strong> -&#9733;&#9733;&#9733;<br><strong>Cost<\/strong> &ndash; &#9733;&#9733;&#9733;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Iridium Spark Plugs Rating<\/h3>\n\n\n\n<p><strong>Performance<\/strong> &ndash; &#9733;&#9733;&#9733;<br><strong>Longevity<\/strong> &ndash; &#9733;&#9733;&#9733;&#9733;&#9733;<br><strong>Cost<\/strong> &ndash; &#9733;&#9733;<\/p>\n\n\n\n<p>Compared To:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Copper Spark Plugs Rating<\/h3>\n\n\n\n<p><strong>Performance<\/strong> &ndash; &#9733;&#9733;&#9733;&#9733;&#9733;<br><strong>Longevity<\/strong> &ndash; &#9733;<br><strong>Cost<\/strong> &ndash; &#9733;&#9733;&#9733;&#9733;&#9733;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Back to Basics: Spark Plugs 101<\/h2>\n\n\n\n<p>Before you make your final decision, it&rsquo;s important to <a href=\"https:\/\/www.carparts.com\/blog\/a-short-course-on-ignition-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"understand just how big of a role your spark plugs play\">understand just how big of a role your spark plugs play<\/a> in your engine&rsquo;s performance. Here&rsquo;s a quick refresher on what they do and how they do it:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is a Spark Plug, and Why is it Important?<\/h2>\n\n\n\n<p>A spark plug is one of the smallest but most vital components in an internal combustion vehicle. Fitted on top of each engine cylinder, spark plugs supply your engine with the spark it needs to begin the combustion cycle. The piston, which is controlled by the crankshaft&rsquo;s motion, compresses the fuel-and-air mixture during the compression cycle.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"660\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope-1024x660.jpg\" alt=\"spark plug oscilloscope diagram\" class=\"wp-image-100953\" style=\"width:1024px;height:660px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope-1024x660.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope-300x193.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope-768x495.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope-150x97.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/02\/spark-plug-oscilloscope.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Here you can see the oscilloscope pattern of a single secondary firing event. This is measured with an inductive pickup in thousands of volts. The primary pattern (where the coil is being triggered) will produce a similar pattern but in hundreds of volts instead of thousands. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p>When the fuel\/air charge is compressed, the spark plugs trigger each combustion event at the precise moment it is needed for maximum power and efficiency.<strong> <\/strong>This is done by creating an arc of electricity between two electrodes found at the tip of each assembly. When every cylinder is carrying an equal share of the load, the engine runs smoothly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why Does the Metal on a Spark Plug Matter?<\/h3>\n\n\n\n<p>At the tip of a spark plug lies two metal electrodes that provide the air gap and place it in the combustion chamber so that when the secondary ignition system sends the high voltage spark to ignite the air-fuel mixture, it happens in the right place at the right time. The center and side electrodes,are separated by a carefully set gap across which the arc happens.<\/p>\n\n\n\n<p>The oldest type of spark plug has a copper inner core. Copper has a low melting point, so it is coated with nickel-alloy to reinforce its durability.<\/p>\n\n\n\n<p>Since copper is far less durable than platinum or iridium electrodes, copper spark plugs are commonly found in cars manufactured before the 1980s, when cars were built with fewer electronic components.<\/p>\n\n\n\n<p>Some sources say copper spark plugs need to be changed every 20,000 miles, but also keep in mind that copper plugs can last up to 100,000 miles on modern fuel-injected vehicles. If your budget is tight, don&rsquo;t feel bad about using the copper spark plugs instead of the more expensive ones. The more superior types of spark plugs feature platinum and iridium electrodes and are two to three times more durable than the outdated copper spark plug.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Copper plugs can last up to 100,000 miles on modern fuel-injected vehicles. If your budget is tight, don&rsquo;t feel bad about using the copper spark plugs instead of the more expensive ones.<\/p>\n<cite>&ndash;<a href=\"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Richard McCuistian, ASE Certified Master Automobile Technician\">Richard McCuistian, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get Quality Replacement Spark Plugs for Your Vehicle<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/www.carparts.com\/spark-plug\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"spark plug\">spark plug<\/a> might be one of the smallest parts in your vehicle, but it can cause big problems if it stops working. Your engine is likely to misfire, hard start, and rough idle. It might even fail to function outright, leaving you stranded. Luckily, you can avoid all that by easily getting new spark plugs from CarParts.com.&nbsp;<\/p>\n\n\n\n<p>Whether you&rsquo;re looking for iridium or platinum spark plugs, you&rsquo;re sure to find the best fit for your vehicle at CarParts.com. Our extensive catalog guarantees a wide array of spark plugs to choose from. You can also easily browse through our selection by using our vehicle selector and search filters.&nbsp;<\/p>\n\n\n\n<p>Don&rsquo;t wait until you&rsquo;re stranded because of faulty spark plugs. Check out our quality selection of iridium and platinum spark plugs today at CarParts.com.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n<!-- start of editable content -->\n\n<a href=\"https:\/\/www.carparts.com\/spark-plug\" target=\"_blank\" aria-label=\"spark plug\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/ng2164_1\">\n<strong>Spark Plug<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/spark-plug-wire\" target=\"_blank\" aria-label=\"spark plug wire\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repm504804_1\">\n<strong>Spark Plug Wire<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n\n<\/div>\n\n\n\n<div class=\"shop-project\">\n\n    <h2>Shop this Project<\/h2>\n\n    <ul class=\"shop-project-list\">\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/A-Premium\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/PRMAPSP013.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/prmapsp013_1\" alt=\"A-Premium&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Gap 0.050 inch; 6x Iridium and Platinum Spark Plugs, Set of 6, 3.8L 6Cyl\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/prmapsp013_1\" alt=\"A-Premium&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Gap 0.050 inch; 6x Iridium and Platinum Spark Plugs, Set of 6, 3.8L 6Cyl\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/A-Premium\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/PRMAPSP013.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A-Premium&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Gap 0.050 inch; 6x Iridium and Platinum Spark Plugs, Set of 6, 3.8L 6Cyl\">A-Premium&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Gap 0.050 inch; 6x Iridium and Platinum Spark Plugs, Set of 6, 3.8L 6Cyl<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$35.19<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/A-Premium\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/PRMAPSP013.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/Denso\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NP5349-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/set-np5349-6_1\" alt=\"Denso&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Set of 6, 6 Cyl 3.8L, Iridium Power Series\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/set-np5349-6_1\" alt=\"Denso&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Set of 6, 6 Cyl 3.8L, Iridium Power Series\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/Denso\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NP5349-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Denso&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Set of 6, 6 Cyl 3.8L, Iridium Power Series\">Denso&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Set of 6, 6 Cyl 3.8L, Iridium Power Series<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-0.svg\" alt=\"0 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$43.49<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/Denso\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NP5349-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/NGK\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NGLZTR5AIX13-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/set-nglztr5aix13-6_1\" alt=\"NGK&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Gap 0.050 in., Set of 6, 6 Cyl 3.8L, Iridium IX Series\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/set-nglztr5aix13-6_1\" alt=\"NGK&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L - Spark Plug, Gap 0.050 in., Set of 6, 6 Cyl 3.8L, Iridium IX Series\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/NGK\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NGLZTR5AIX13-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"NGK&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Gap 0.050 in., Set of 6, 6 Cyl 3.8L, Iridium IX Series\">NGK&reg; &ndash; 2004 Chrysler Town &amp; Country Touring 6 Cyl 3.8L &ndash; Spark Plug, Gap 0.050 in., Set of 6, 6 Cyl 3.8L, Iridium IX Series<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-0.svg\" alt=\"0 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$71.49<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/Chrysler\/Town_-and-_Country\/NGK\/Spark_Plug\/2004\/Touring\/6_Cyl_3-dot-8L\/SET-NGLZTR5AIX13-6.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n            <\/ul>\n<\/div>\n\n\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Over 90% of cars on the road are equipped with internal combustion engines, and a vast majority run on gasoline&#8230;. <a href=\"https:\/\/www.carparts.com\/blog\/iridium-vs-platinum-spark-plugs\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":6523,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[52,3744],"tags":[1171],"ppma_author":[2607,2985],"class_list":{"0":"post-6517","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-ignition-system","9":"tag-spark-plug-2","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Iridium vs. Platinum Spark Plugs - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"What\u2019s the difference between iridium and platinum spark plugs? Find out the pros and cons of each type, and decide which one\u2019s best for your engine.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/iridium-vs-platinum-spark-plugs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Iridium vs. Platinum Spark Plugs - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"What\u2019s the difference between iridium and platinum spark plugs? Find out the pros and cons of each type, and decide which one\u2019s best for your engine.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/iridium-vs-platinum-spark-plugs\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2020-01-22T08:53:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-10T06:15:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/01\/car-spark-plugs-1.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Richard McCuistian, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/iridium-vs-platinum-spark-plugs\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/iridium-vs-platinum-spark-plugs\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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