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!

13479835 - : Inlet Hose for GM Image

Inlet Hose

1.6L, reservoir and hoses. Cruze.
$58.54 CAD
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84027002 - : Rear Duct for GM Image

Rear Duct

6.2L, auxiliary. 3.6L, auxiliary. 2.0L turbo, auxiliary.
$76.42 CAD
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55591997 - : By-Pass Hose for GM Image

By-Pass Hose

1.6L.
$78.40 CAD
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22827734 - : Vent Hose for GM Image

Vent Hose

Radiator to Engine. Vent hose. 4.8, 5.3, 6.0 & 6.2L. Sedan,.
$99.76 CAD
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23118002 - : Hose for GM Image

Hose

2016-18, front section, with hybrid, auxiliary outlet.
$84.80 CAD
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84671374 - : Radiator Assembly for GM Image

Radiator Assembly

Canyon, Colorado. 2.5L.
$719.89 CAD
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85674240 - : Coolant Hose for GM Image

Coolant Hose

All wheel drive, #3. Rear wheel drive, 2024-26.
$85.59 CAD
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23166798 - : Engine Coolant Reservoir Hose for GM Image

Engine Coolant Reservoir Hose

3.6L twin-turbo, #1.
$46.27 CAD
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86510935 - : F (S)Hose for GM Image

F (S)Hose

All wheel drive. Fwd. Blazer EV. LYRIQ. Inlet. Radiator to valve. Rwd. Awd.
$60.80 CAD
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86787043 - : Air Deflector for GM Image

Air Deflector

Without v blackwing.
$138.27 CAD
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25837570 - : HVAC Heater Hose for GM Image

HVAC Heater Hose

Inlet. Auxiliary Water Pump to Heater Core.
$29.93 CAD
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12696840 - : Inlet Hose for GM Image

Inlet Hose

3.0L twin-turbo. CT5. Inlet.
$82.76 CAD
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