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5330 Iridium Power Series Spark Plug, Sold individually

You Save : $4.53 (29%)
List Price : $15.52
Manufacturer #5330
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5/8 in. hex size; Removable nut terminal type; Tapered seat style; Machine rolled threads; 0.4 mm center electrode; Iridium power electrode configuration
Iridium Power Series
Spark Plug Code:
Quantity Sold:
Sold individually
1-year Denso limited Warranty
Anticipated Ship Out Time:
1-2 Business Days
Electrode Core Material:
Copper Electrode Core
Gap Size:
1.1 mm
Heat Range:
11.6 mm Reach
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Fitment Information
1967 Buick Electra
8 Cyl 7.0L
1967 Buick Electra
8 Cyl 7.0L
1967 Buick Gran Sport
8 Cyl 6.6L
1967-1969 Buick Riviera
8 Cyl 7.0L
1967-1968 Buick Skylark
8 Cyl 6.6L
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Product Information

Premium Class Iridium Spark Plugs from Denso are fast becoming the standard for today's high-tech engines. Employing a revolutionary 360 degrees laser welding process, Denso has created a spark plug unlike anything on the market today. These innovative spark plugs are designed for durability under the most extreme conditions. Denso's patented Iridium alloy is 6 times harder and 8 times stronger than conventional platinum and can handle temperatures in excess of 4,000 degrees Fahrenheit.


  • Designed with heavy duty insulator that provides unparalleled dielectric strength and thermal conductivity under extreme temperatures
  • Five-rib design prevents flashover while decreasing voltage loss
  • Copper glass seal bonds the center electrode and insulator together for a gas-tight seal
  • Platinum center electrode utilizes platinum to shrink the surface area of the center electrode tip for maximum firing performance and minimum voltage requirements
  • Platinum ground electrode resists gas and electrical erosion and corrosion extending service intervals to 60,000 miles
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 90 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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