To work right, an engine needs to avoid overheating. What does the best job of helping one run relatively cool? Your factory GM radiator. How car radiators work starts with coolant.

This fluid is designed to absorb the heat produced during engine operation. It does so as it flows through a radiator hose and between inlets and outlets. As it moves back and forth, a radiator cap compresses it, enabling it to absorb as much heat as it can. The aluminum fins on your radiator core block then release the heat, and a fan dissipates it. The result: your engine works better and lasts longer.

How to Recognize Radiator Failure

When a radiator goes bad, however, you'll start to see all sorts of signs. Luckily, they're easy to recognize. They include:

  • Fin damage
  • Strange engine noises
  • The sweet, syrupy smell of ethylene glycol (indicating coolant leakage)
  • Sludgy coolant
  • Heater and air conditioner malfunctions
  • Engine overheating

Genuine OEM Radiator Parts Are Your Best Choice

If you have what you think are radiator problems, check your temperature gauge first. It'll let you know if your engine's running hot. Then, do an inspection. If radiator replacement is necessary, avoid the aftermarket. Our auto parts store has the best solution. That's a genuine GM radiator. Your OEM designs them specifically for its models, after all, and that guarantees they'll work together. Check another big DIY project off your to-dos -- order online now!

84868125 - : Lower Bracket for GM Image

Lower Bracket

3.0L diesel. 6.2L supercharged.
$22.18 CAD
View Details
21787 - : Acdelco™ Radiator for GM Image

Acdelco™ Radiator

GM 21787
Camaro. Manual trans.
$581.32 CAD
View Details
84914496 - : Insert for GM Image

Insert

Without aev edition, chrome. 2024-26, chrome.
$43.96 CAD
View Details
85147462 - : Radiator Coolant Hose for GM Image

Radiator Coolant Hose

Corvette. Main radiator. Primary radiators. Right. Outlet. Inlet. Without hybrid. Without turbo. 5.5L front cooling, outer.
$156.42 CAD
View Details
42491757 - : Lower Deflector for GM Image

Lower Deflector

2017-22, lower components, awd.
$80.02 CAD
View Details
84637349 - : Heater Hose for GM Image

Heater Hose

CT5. 3.0l. Rwd. Inlet.
$33.84 CAD
View Details
85125387 - : Outlet Hose for GM Image

Outlet Hose

Rear wheel drive, 2024-26, 19 kw charge.
$103.39 CAD
View Details
86549476 - : Extension for GM Image

Extension

$1,385.17 CAD
View Details
96958201 - : Reservoir Hose for GM Image

Reservoir Hose

1.8L.
$40.99 CAD
View Details
RC116 - : Acdelco™ Reservoir Cap for GM Image

Acdelco™ Reservoir Cap

GM RC116
3.0L, 3.6L. Location-Reservoir. Engine Cooling. Wagon, 3.0, 3.6L. CTS-v. STS. Coupe, 6.2L. 4.6L, without trailer pkg.
$32.99 CAD
View Details
23125839 - : Upper Hose for GM Image

Upper Hose

Canyon, Colorado.
$75.09 CAD
View Details
85699488 - : Inlet Hose for GM Image

Inlet Hose

Silverado, Sierra 2500 HD. Inlet. Silverado, Sierra 3500 HD. Auxiliary Radiator. Emission Reduction Fluid Injector Cooling. 6.6L diesel,...
$215.38 CAD
View Details

No results found. Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!