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!

84553974 - : Upper Baffle for GM Image

Upper Baffle

Radiator & mounting, 2018-21.
$73.49 CAD
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85158531 - : Side Shield for GM Image

Side Shield

$28.70 CAD
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42762929 - : Skid Plate for GM Image

Skid Plate

$169.21 CAD
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21965 - : Acdelco™ Auxiliary Radiator for GM Image

Acdelco™ Auxiliary Radiator

GM 21965
CT6. 4.2l. Right. Engine Cooling. 4.2L twin-turbo, auxiliary radiator.
$686.45 CAD
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84263673 - : Extension for GM Image

Extension

$160.35 CAD
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25869662 - : Support Brace for GM Image

Support Brace

1/2 ton.
$371.36 CAD
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42785960 - : Sight Shield for GM Image

Sight Shield

$221.09 CAD
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84850652 - : Lower Hose for GM Image

Lower Hose

CT5. 3.0L twin-turbo, main radiator, rwd.
$111.06 CAD
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84820470 - : Insert for GM Image

Insert

2021-24, vadar chrome. 2021-24, vader chrome.
$121.36 CAD
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1535011 - : Acdelco™ HVAC Heater Hose for GM Image

Acdelco™ HVAC Heater Hose

2019, front section, auxillary outlet. Inlet. Engine to Pipe Assy.
$90.73 CAD
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84848574 - : Coolant Hose for GM Image

Coolant Hose

Rear, 2024-26, pickup, 2 motor, dc converter inlet. Rear, 2024-26, suv, 2 motor, 19.2kw, (k2o), dc converter inlet.
$35.54 CAD
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