Electric Auxiliary Coolant Pump | Compatible with Chevrolet Silverado 04-07 Sierra 05-07 | Cadillac Catera 97-01 | Replaces: 10438993 , 90509271 - Motiv8

Electric Auxiliary Coolant Pump for CADILLAC, CHEVROLET, GMC, OLDSMOBILE, PONTIAC 10438993 & 90509271 Electric Auxiliary Coolant Pumps circulate coolant through the cooling system to provide cooling of not only the engine but also inverters, batteries, turbochargers, HVAC systems, and assists start-stop vehicles in engine-off conditions. If the engine temperature light is illuminated or the pump makes high pitch screeching noises than it's most likely time for a new coolant pump.  Pump will fit engines of CADILLAC, CHEVROLET, GMC, OLDSMOBILE, PONTIAC, see below for specific models. Contaminated coolant, corrosion, or particles in the coolant can cause seals and internal pump parts to fail. Thus, before replacing your electric auxiliary coolant pump, ensure to flush the coolant system and use only the correct engine coolant as specified in the owner's manual. If the coolant system is not flushed, there is a chance the failure can return due to particles in the coolant damaging t