Home / Vehicles / GMC / GMC Sierra 1500 / Spark plugs
02 · IG Ignition and tune-up · GMC Sierra 1500
GMC Sierra 1500 spark plugs
for 2020–2024 model years · what changes the fit
01 About the part
Fire the air and fuel mix in each cylinder. Most modern engines use iridium or platinum plugs with long service intervals. All about spark plugs →
02 What changes the fit
- Every model year on this page is the fifth-generation (GMT T1XX) Sierra 1500. The 2019 Sierra went on sale in September 2018. source
- For 2022, GMC sold a carryover Sierra Limited with very few changes from the 2021 truck until the refreshed 2022 Sierra 1500 began shipping in spring 2022. Check which one you have before you order. source
- The 2022 refresh added the AT4X and Denali Ultimate trims. Denali Ultimate became the top trim. source
- Four-wheel drive is standard on the AT4. source
- 5 spark-ignition engines across 2020–2024: 2.7L 4-cyl turbo (gasoline, 2020–2024); 4.3L 6-cyl (gasoline, 2020–2021); 5.3L 8-cyl (flex-fuel (E85), 2020–2024); 5.3L 8-cyl (gasoline, 2020–2024); 6.2L 8-cyl (gasoline, 2020–2024). EPA fuel economy records
- The 3.0L 6-cyl turbo diesel has no spark plugs. Diesels use glow plugs.
- Plug count, gap, and heat range come from the engine maker. Check your owner's manual or enter your VIN; don't go by cylinder count alone.
- EPA rates 3 Sierra 1500 versions separately for these years: Sierra, Sierra AT4, Sierra AT4X.
GMC versions in EPA records
| Year | EPA model names |
|---|---|
| 2020 | Sierra 2WD · Sierra 4WD · Sierra 4WD AT4 |
| 2021 | Sierra 2WD · Sierra 4WD · Sierra 4WD AT4 |
| 2022 | Sierra 2WD · Sierra 4WD |
| 2023 | Sierra 2WD · Sierra 4WD · Sierra 4WD AT4X |
| 2024 | Sierra 2WD · Sierra 4WD · Sierra 4WD AT4X |
Engines listed by EPA for these years: 2.7L 4-cyl turbo gasoline; 3.0L 6-cyl turbo diesel; 4.3L 6-cyl gasoline; 5.3L 8-cyl flex-fuel (E85); 5.3L 8-cyl gasoline; 6.2L 8-cyl gasoline. EPA
NHTSA recalls · ignition
NHTSA lists no ignition recalls for the 2020–2024 GMC Sierra 1500 as of 2026-11-08. NHTSA recalls
The Sierra 1500 shares its platform and engines with the Chevrolet Silverado 1500. GMC sets it apart with features such as a two-piece tailgate and a carbon-fiber bed. source Chevrolet Silverado 1500 spark plugs →
03 Cross-reference
Coming soon
Interchange numbers for GMC Sierra 1500 spark plugs show here once we have a source we can cite. Until then, enter your VIN in the factory parts catalog to get the original-equipment number, and compare that number across stores.
04 Questions
Which GMC Sierra 1500 engines does this cover?
2020–2024: 2.7L 4-cyl turbo, 3.0L 6-cyl turbo, 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl, as listed in EPA records.
Any GMC Sierra 1500 recalls for ignition?
None for 2020–2024 in NHTSA's records, checked 2026-11-08.
Check price at
Prices are on the retailer sites. PartIndex does not list prices for this part.
- AutoZoneautozone.comAffiliate link: PartIndex may earn a commission.
- O’Reillyoreillyauto.com
- Advance Auto Partsshop.advanceautoparts.com
- NAPAnapaonline.comNAPA searches by part name; set your vehicle on their page.
- RockAutorockauto.comChoose your vehicle in RockAuto's catalog.
- eBayebay.comAffiliate link: PartIndex may earn a commission.
- Amazonamazon.comAffiliate link: PartIndex may earn a commission.
use your VIN there to get OEM part numbers
Searches open in a new tab. See the affiliate disclosure.
eBay right now
prices come from eBay and can changeChecking current eBay listings…
Guides: Ignition and tune-up · GMC and other makes: official parts catalogs · Find the right part
Facts on this page: engines from fueleconomy.gov (U.S. DOE and EPA); recalls from NHTSA, checked 2026-11-08. Prices come only from the retailers and the live eBay listings.