When the gears rotate, the intake side separates creating a void between the gears, which creates a vacuum that sucks in

Materials such as plastic, gray and ductile iron, bronze and steels are common as well. In pump gears, a common issue ca

Oil Pump Gears can fail due to the increased harmonics, or oscillating of the gear from the added power and revolutions

Oil pump gears are powered by the crankshaft and in high horsepower or high revving applications the stock oil