The Pontiac G5 Water Pump helps to keep engine temperatures in check by circulating coolant on an endless loop between the engine block and the radiator. Mounted near the lower radiator hose, the Water Pump uses a pulley turned by the crankshaft belt to turn an internal shaft and finned impeller which push fluid through the water jacket, into the thermostat and back to the radiator. Earlier designs were based on heavy cast iron, but the majority of the current units for the compact Pontiac coupe are made of lighter aluminum that is less prone to corrosion but still contains strong bearings and a shaft seal that keeps coolant away from the bearing grease. While the familiar belt-driven style is still common, some later model years across the G5 family are using an electric Water Pump which is powered by the electrical system rather than the crank pulley, removing parasitic drag at high engine speeds. Both versions have the same objective, continuous coolant flow, but have different drive sources. The electric style has quieter operation and better efficiency compared to the mechanical Water Pump. Drivers should be on the lookout for leaks in the shaft seal, whining from worn bearings or rising temperature gauges, all classic indications that the Water Pump may be on the verge of failure. Prompt replacement restores reliable circulation and protects the last Pontiac G5 engines from damaging overheating, keeping this nimble small car on the road.
Each OEM Pontiac G5 Water Pump we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.