GM GENUINE
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GM GENUINE 85165359  
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Signs it is Time to Replace Your Heater Hose(s)

Prevent system contamination and coolant leaks that could cause your engine to overheat by checking for these common signs of Heater Hose damage / failure:

INTERNAL DAMAGE

Soft / mushy hose ends, usually about 2 inches from the clamp.

Internally Damaged Hose
Internally Damaged Hose
LEAKAGE

Moisture, drips or coolant bleed marks on or around the hose clamps, connectors or hose.

Leak Damaged Hose
Leaking Hose
HEAT DAMAGE

Slight swelling, or a hardened, glossy cover that is covered with cracks.

Heat Damaged Hose
Heat Damaged Hose
OZONE DAMAGE

Tiny, parallel cracks in the cover, usually at hose bends.

Ozone Damaged Hose
Ozone Damaged Hose
ABRASION DAMAGE

Rubbing marks on, or damage to the hose cover.

Abrasion Damaged Hose
Abrasion Damaged Hose
OIL CONTAMINATION

Soft or spongy to the touch - bulges and swelling are readily apparent.

Oil Damaged Hose
Oil Contaminated Hose

GM GENUINE Warranty Information:
Limited Lifetime: Chassis Parts, Electric Fuel Pumps, Bumper Fascia/Bumper Covers, Ignition Wire Sets/Single Leads, Radiators, Sheet Metal, Shock Absorbers, Struts, Lift Supports, Suspension Parts, Wheel Hub Bearings, Wire Sets

36 Month / 100,000 Miles: Automatic Transmission Assemblies, Engine Assemblies, Transfer Cases

24 Month: Engine Components, Steering & Driveline Parts, Air Conditioning, Air Filters, Starters & Alternators, Brakes, Emission Control, Fuel Filters, Ignition Parts, Oil Filters, Thermostats & Caps, TPMS, Transmission Filters, Water Pumps