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!

12645615 - : Engine Coolant Hose for GM Image

Engine Coolant Hose

Engine Cooling. EGR Cooler to EGR Valve.
$30.17 CAD
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85632905 - : Panel Assembly for GM Image

Panel Assembly

Gmc, 6.0L.
$958.66 CAD
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15102066 - : Outer Filler for GM Image

Outer Filler

2003-07, 3/4, 1 ton.
$88.01 CAD
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87813846 - : Access Cover for GM Image

Access Cover

2021-24.
$190.78 CAD
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22765637 - : Auxiliary Radiator for GM Image

Auxiliary Radiator

Battery cooling-front. Volt. ELR.
$634.26 CAD
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84008552 - : Coolant Hose for GM Image

Coolant Hose

3.6L, with heavy duty cooling, #2.
$150.80 CAD
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25841843 - : Lower Hose for GM Image

Lower Hose

Silverado, sierra. 6.6l. All models. 6.6l.
$568.32 CAD
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86331348 - : Shutter for GM Image

Shutter

With active shutter. Yukon XL 5.3 & 6.2L.
$429.72 CAD
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15940309 - : Reservoir for GM Image

Reservoir

HHR. 2.2L. 2.4L. 2.0L.
$201.31 CAD
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89025034 - : Drain Plug for GM Image

Drain Plug

Coupe, 3.6L twin-turbo, radiator mounted-center. 6.2L with supercharger. 3.6L twin-turbo main radiator. Coupe, 6.2L.
$12.57 CAD
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60010267 - : Baffle for GM Image

Baffle

1.3l turbo. 1.2L.
$51.79 CAD
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42518089 - : Inlet Hose for GM Image

Inlet Hose

Hoses & heater.
$37.81 CAD
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