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Replacement RC54820001 Fog Light Switch - Direct Fit, Sold individually
Vehicle Info Required to Guarantee Fit
$20.55
Vehicle Fitment
  • 2003 - 2004 GMC Sierra 2500 All Submodels All Engines
Product Details
Notes : Blade type; 6-prong male terminalWarranty : 1-year unlimited-mileage warrantyQuantity Sold : Sold individually
Direct Fit Horn - High Tone
Replacement
Part Number: REPC502504
Vehicle Info Required to Guarantee Fit
$16.22
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2001 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLT 8 Cyl 6.0L
Product Details
Notes : High Tone, With Mounting Bracket, 2 Male Blade TerminalQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - Low Tone
Replacement
Part Number: REPC502505
Vehicle Info Required to Guarantee Fit
$14.25
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2001 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLT 8 Cyl 6.0L
Product Details
Notes : Low ToneQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - High/Low Tone
Replacement
Part Number: SET-REPC502504-2
Vehicle Info Required to Guarantee Fit
$29.53
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2001 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2001 GMC Sierra 2500 SLT 8 Cyl 6.0L
Product Details
Components : (2) HornsQuantity Sold : KitWarranty : 1-year unlimited-mileage warranty
Replacement Horn, Low note - Direct Fit
Replacement
Part Number: REPC502501
Vehicle Info Required to Guarantee Fit
$21.12
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : Driver SideNotes : With plug-in type connector; May require GM OE # 19116451 Horn Wire on some applicationsQuantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - High Tone
Replacement
Part Number: REPC502502
Vehicle Info Required to Guarantee Fit
$12.66
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : Passenger SideQuantity Sold : KitWarranty : 1-year unlimited-mileage warranty
Direct Fit Horn - High/Low Tone
Replacement
Part Number: SET-REPC502502-2
Vehicle Info Required to Guarantee Fit
$32.41
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : Driver And Passenger SideComponents : (2) HornsQuantity Sold : KitWarranty : 1-year unlimited-mileage warranty
Replacement RC32170001 Valve Lifter - Direct Fit, Set of 8
Vehicle Info Required to Guarantee Fit
$53.35
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Warranty : 1-year unlimited-mileage warrantyQuantity Sold : Set of 8
Replacement SET-RC32170001-2 Valve Lifter - Direct Fit, Kit
Replacement
Part Number: SET-RC32170001-2
Vehicle Info Required to Guarantee Fit
$100.36
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Components : (16) Valve LiftersWarranty : 1-year unlimited-mileage warrantyQuantity Sold : Kit
Automatic Transmission Solenoid
Replacement
Part Number: REPC320703
Vehicle Info Required to Guarantee Fit
$11.87
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Notes : With 4L60E TransmissionReplaces OE Number : 10478120, 10478131, 24230298Quantity Sold : Sold individuallyWarranty : 1-year unlimited-mileage warrantyProp 65 Warning : <p><b><img src="https://cld.partsimg.com/image/upload/images/warning_a.jpg" alt="Warning Symbol" width="28" height="22" />WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to <a href="https://www.p65warnings.ca.gov">www.P65Warnings.ca.gov</a>.</b></p>
Automatic Transmission Solenoid
Replacement
Part Number: SET-REPC320703-2
Vehicle Info Required to Guarantee Fit
$23.00
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Notes : With 4L60E TransmissionComponents : (2) Automatic Transmission SolenoidsReplaces OE Number : 10478120, 10478131, 24230298Quantity Sold : Set of 2Warranty : 1-year unlimited-mileage warrantyProp 65 Warning : <p><b><img src="https://cld.partsimg.com/image/upload/images/warning_a.jpg" alt="Warning Symbol" width="28" height="22" />WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to <a href="https://www.p65warnings.ca.gov">www.P65Warnings.ca.gov</a>.</b></p>
Replacement REPC544901 Seat Heat Pad - Carbon Fiber, Direct Fit, Kit
Vehicle Info Required to Guarantee Fit
$40.63
Vehicle Fitment
  • 2003 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : FrontNotes : Seat back; Without control switchWarranty : 1-year unlimited-mileage warrantyQuantity Sold : Kit
Replacement REPC544902 Seat Heat Pad - Carbon Fiber, Direct Fit, Kit
Vehicle Info Required to Guarantee Fit
$32.67
Vehicle Fitment
  • 2003 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : FrontNotes : Cusion; Seat bottom; Without control switchWarranty : 1-year unlimited-mileage warrantyQuantity Sold : Kit
Replacement SET-REPC544902-2 Seat Heat Pad - Carbon Fiber, Direct Fit, Set of 2
Vehicle Info Required to Guarantee Fit
$68.95
Vehicle Fitment
  • 2003 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Components : (2) Seat Heat PadsWarranty : 1-year unlimited-mileage warrantyQuantity Sold : Set of 2
Control Arm - Front, Driver or Passenger Side, Upper
Vehicle Info Required to Guarantee Fit
$43.87
Vehicle Fitment
  • 1999 - 2000 GMC Sierra 2500 SL 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLE 8 Cyl 5.3L
  • 1999 - 2000 GMC Sierra 2500 SLT 8 Cyl 5.3L
  • 1999 - 2002 GMC Sierra 2500 SL 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLE 8 Cyl 6.0L
  • 1999 - 2004 GMC Sierra 2500 SLT 8 Cyl 6.0L
  • 2002 - 2004 GMC Sierra 2500 Base 8 Cyl 6.0L
  • 2003 - 2004 GMC Sierra 2500 WT 8 Cyl 6.0L
Product Details
Location : Front, Driver Or Passenger Side, UpperNotes : Includes nut(s)Design : StampedGreasable : Non-greasableAdjustability : Non-AdjustableBall Joint Included : With ball joint(s)Bushing Included : With bushing(s)Bushing Material : Rubber bushingQuantity Sold : Sold individuallyRecommended Use : OE ReplacementInterchange Part Number : CMS20360, 15049881, 15110013, 15224737, 25905442, 520-150, RK620054Replaces OE Number : 15049881, 15110013, 15224737, 25905442Warranty : 1-year unlimited-mileage warrantyProp 65 Warning : <p><b><img src="https://cld.partsimg.com/image/upload/images/warning_a.jpg" alt="Warning Symbol" width="28" height="22" />WARNING: This product can expose you to chemicals including lead and mineral oils, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to <a href="https://www.p65warnings.ca.gov">www.P65Warnings.ca.gov</a>.</b></p>
Page 1 of 783 | Showing 1 - 15 of 11745 results

GMC Sierra 2500 Customer Reviews

Fits and works perfectly. Thanks!
Damian Mckeon
VERIFIED PURCHASER
Purchased on May 03, 2020
Direct Fit Horn - Low Tone
May 15, 2020
Fits Perfect
Fits 99 Ford ranger the extra terminal is for ground.
William Ballard
VERIFIED PURCHASER
Purchased on Apr 30, 2020
Completely satisfied.
Thomas Knapik
VERIFIED PURCHASER
Purchased on Apr 25, 2020

GMC Sierra 2500 Guides

Six Amazing Things You Didn't Know about the GMC Sierra 2500

  • If you park your GMC Sierra 2500 beside a Chevrolet Silverado and just happen to notice that they kind-of, sort-of seem the same-wonder no more. They really are the same truck. In fact, the only difference is the logo up front on the grille. If you're wondering why one or the other doesn't fling a lawsuit faster than Samsung can say Apple, it's because Chevrolet is owned by GMC. Why sell the same truck under different names? Well, they figured that certain people just want to stay brand-loyal.

  • While some games feature some very famous cars and trucks, the GMC Sierra 2500 has a game all to itself. In a bid to promote its already successful truck line (because you simply can't have enough success), the company released a monster truck themed game for its Sierra. Sure, the Sierra in the game was souped-up, tricked-out, and in no way street legal, but hey, it was a wonder to drive.

  • While primarily a pickup truck, the GMC Sierra 2500 was a very versatile platform. With a flick of the switch, several man hours in labor, lots of parts, some heavy duty modification, the Sierra can transform into a storage platform for delivery services. As the Land of the Dead showed us, it could also work well as a rail-exclusive transport too.

  • Speaking of Land of the Dead, the GMC Sierra is a very prominent feature in many movies and popular TV serials out today. In its resume are The Closer, Breaking Bad, Grey's Anatomy, and Modern Family. Heck, you can even spot it is the standard truck used in the animated series King of the Hill.

  • To anyone in America-or at least, California and Nevada-the name GMC Sierra 2500 evokes the rugged peaks of the Sierra Nevada-or the Sierra Madre, Sierra Blanca, Sierra Ancha, or Sierra Estrella. Yes, you read that right: this truck is named after no less than five mighty American mountain ranges-more if you count the Sierras all over the world. The funny thing is that, stock and as it is, the truck is not equipped to actually handle the rigors of those mountains. Ominously, the word sierra is Spanish for "saw."

  • If the rugged strength and carrying capacity of the GMC Sierra 2500 isn't quite enough for you, they have an HD, or heavy duty, version available. This variant is essentially the same truck-reinforced to haul a whopping 3,000 pounds-in its bed.

Top Two Troubles with the GMC Sierra 2500

When a pickup truck is named after some mountains, people will start to expect certain things about it-"ruggedness, durability, and staying power" would probably top that list. As far as expectations go, the GMC Sierra 2500 does not disappoint. With a respectable six-year production run that only ended because there were really too many GMC pickup models coming out, the Sierra 2500 was a capable and trusted performer-that it looked good too certainly added to the charm. Of course, no vehicle is ever truly perfect. So here are the two most common gripes people have had with the truck. It pays to be informed.


Broken brakes

For some owners, the 2002 GMC Sierra 2500 had a terrifying tendency to crash. The problem with the brakes-for that was the central culprit in these cases-was not limited to just one cause neither. In some cases, the driver would step on the brakes only to find that they simply weren't working anymore! In other cases, the devolution was gradual but nonetheless scary. For the former, it was found that the brakes lines had simply rotted away! The latter was later blamed on rusted lines.

Oddly enough, a recall order was issued for the 2002 Sierra-but for a busted tailgate. Which is all right, because it's probably more economical to have the neighborhood mechanic look it over. Plus, aftermarket replacement brake lines are really durable these days. Sometimes, their quality exceeds even that put out by OE suppliers.


Window woes

This much more subdued problem comes by way of the 2001 iteration of the GMC Sierra 2500, and was observed at around 24,000 miles. While not as dangerous a rotted-out brake lines, the effect is nonetheless pretty dramatic. In nearly all cases, the power window on one or more sides simply drop down rapidly and do not move up to close again.

There actually is a recall order tied to the 2001 Sierra that does focus on the electrical components. It only covers a small number of trucks so check first before taking any action. Alternatively, getting an aftermarket replacement regulator is also advisable. It might be cheaper, but it seems to solve all the complaints easily.

Preventing GMC Sierra 2500 Suspension Problems: Some Dos and Don’ts

Your GMC Sierra 2500 is a real workhorse. It is built for heavy-duty applications, capable of handling heavy loads and activities day in and day out. However, you must admit that your pickup truck is not immune to wear and tear caused by aging and the daily activities it is engaged in. And when it comes to aging in vehicles, especially in pickups, one of the most common symptoms is sagging.

Do you feel like your car is no longer balanced? Does it seem like it sits lower on its rear compared to the front area? Do you notice your vehicle starting to run like an old man, no longer as stable as it once had been? Well, the good news is that this doesn't mean it's time for your vehicle to retire. In many cases, all you will need is to practice the correct maintenance to reinvigorate your ride and keep it from conking out on you. So, what to do and what not to do? Check out the list below:

  • Do ensure that you keep your wheels properly aligned and balanced.

Misaligned wheels are among the common causes of suspension problems, not to mention premature tire wear, and it's something that you can easily avoid by having your wheel alignment regularly checked. Every time you bring your car to the shop to have any suspension work done, alignment of the wheel should always follow.

  • Do not ignore the various symptoms showing wear in your vehicle.

These symptoms could include strange squeaks in your ride, together with rattles and vibrations coming from various parts of your auto. If you notice these when you drive your vehicle, these are indications of wearing parts that will have to be checked and replaced as necessary. Otherwise, the problem will likely get worse.

  • Do check the various suspension components of your car as soon as problems are suspected.

The springs, the shocks, the struts—all of these should be inspected whenever you notice any suspension trouble. Learn the simple bounce test to check any suspension damage. If you suspect the springs are starting to succumb to old age, have a compression test done to know if you need to replace them with new ones.

  • Do not overload your vehicle.

Overloading your pickup is one of the most common reasons of premature failure. If you often carry heavy load on your truck bed, that could be the reason the rear feels lower than the front—the weight has already taken its toll on your vehicle. While your truck is built for heavy-duty activities, be sure you stay within the limit of its carrying capacity.

  • Do follow the replacement interval suggested by your vehicle manufacturer when it comes to your vehicle parts.

Some of your car parts are designed to be replaced after a specific number of miles, and you must follow this to avoid troubles down the road. For instance, shock absorbers have to be replaced after around 50,000 miles. Check your car manual to learn when to do the replacement for your GMC Sierra 2500 suspension components.

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