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!

12639838 - : Oil Line for GM Image

Oil Line

CTS. 3.6l. Outlet. ATS. 3.6l. Left. CT4. Return. 3.6l. Sedan, 3.6L twin-turbo, turbo components. Coupe, 3.6L twin-turbo, turbo components.
$317.28 CAD
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23480702 - : Lower Deflector for GM Image

Lower Deflector

Without CTS V with awd.
$325.27 CAD
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25952834 - : Reservoir Hose for GM Image

Reservoir Hose

3.6L. 3.0L.
$76.09 CAD
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39116549 - : Lower Seal for GM Image

Lower Seal

1.6L, radiator and mounting.
$28.25 CAD
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42576988 - : Splash Shield for GM Image

Splash Shield

2017-22, lower components.
$94.70 CAD
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25782944 - : Outer Filler for GM Image

Outer Filler

Chevrolet, 3/4 & 1 ton, 6.0L.
$52.31 CAD
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12705525 - : Oil Line for GM Image

Oil Line

Silverado, Sierra 2500 HD. Diesel. Oil return. Silverado, Sierra 3500 HD. 2017-19, oil & coolant pipes, lower.
$190.24 CAD
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22962568 - : Lower Hose for GM Image

Lower Hose

Camaro.
$64.04 CAD
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84148294 - : Reservoir Cap for GM Image

Reservoir Cap

6.6L diesel, 2017-19, upper.
$24.88 CAD
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22820156 - : Upper Baffle for GM Image

Upper Baffle

3.6L twin-turbo main radiator.
$72.32 CAD
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84212086 - : Side Baffle for GM Image

Side Baffle

2021-26.
$85.39 CAD
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42896053 - : Inlet Hose for GM Image

Inlet Hose

Rear. Trax. Envista. Heater. Inlet.
$49.63 CAD
View Details

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