2021 GMC Sierra 1500 Cooling System Service Parts
55 parts verified to fit your 2021 GMC Sierra 1500 for a complete cooling system service. A moderate DIY project — estimated 2-4 hours.
Cooling Parts
(10)primary
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 Engine Oil Cooler Line Gasket
$12.66
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 36219 Engine Coolant Thermostat Seal
$2.85
Mishimoto
Mishimoto 2019+ Chevrolet Silverado 1500 Silicone Hose Kit - Black
$276.43
BD Diesel
BD Diesel 19-23 Chevrolet Silverado / GMC Sierra 1500 8L90 Cooler Bypass Delete
$97.04
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 36106 Engine Coolant Thermostat Seal
$4.68
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 Engine Water Pump Gasket
$7.80
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 36109 Engine Water Pump Gasket
$15.77
Mishimoto
Mishimoto 19+ Chevy Silverado 1500 Transmission Cooler
$409.55
Coolant & Fluids
(45)consumable
Royal Purple
Royal Purple Premium Synthetic High Performance Multi-Grade 0W20 Motor Oil - 5 Quart
$127.59
LIQUI MOLY
LIQUI MOLY 250mL Brake Fluid DOT 5.1
$124.97
LIQUI MOLY
LIQUI MOLY 5L Top Tec 6600 Motor Oil SAE 0W20
$195.69
aFe
aFe ProGuard D2 Fluid Filters Oil F/F OIL Ford F-150 15-17 V6-3.5L (TT)
$16.38
LIQUI MOLY
LIQUI MOLY 1L Top Tec ATF 1800
$61.73
LIQUI MOLY
LIQUI MOLY 205L Molygen New Generation Motor Oil SAE 5W30
$1866.84
Royal Purple
Royal Purple Premium Synthetic High Performance Euro Formula 0W20 Motor Oil - 6 Gallon Bag-In-Box
$207.73
Royal Purple
Royal Purple Synthetic High Performance 0W20 Motor Oil (Canada) - 5 Quart
$134.97
Cooling System Service for Other GMC Sierra 1500 Years
Other Jobs for Your 2021 GMC Sierra 1500
Frequently Asked Questions
What parts do I need for a cooling system service on my 2021 GMC Sierra 1500?
A complete cooling system service on the 2021 GMC Sierra 1500 typically requires cooling parts, coolant & fluids. All parts shown on this page are verified to fit your specific vehicle.
How long does a cooling system service take on a 2021 GMC Sierra 1500?
A cooling system service typically takes 2-4 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a cooling system service myself?
A cooling system service is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2021 GMC Sierra 1500?
Yes, all parts on this page are verified to fit the 2021 GMC Sierra 1500 using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make cooling system service parts for the 2021 GMC Sierra 1500?
We carry cooling system service parts from trusted brands including Fel-Pro, Mishimoto, BD Diesel, Royal Purple, and LIQUI MOLY. Filter by brand to find your preferred manufacturer.
How much does a cooling system service cost for a 2021 GMC Sierra 1500?
The cost of a cooling system service for the 2021 GMC Sierra 1500 depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.