Atomic Barra Billet Oil Pump Rebuild Kit | BIllet Gears, Plate, Seals

Atomic Billet gear oil pump rebuild kit comes with everything you need to rebuild your standard oil pump to be stronger, higher flowing and higher pressure.

The kit includes Atomic tight-tolerance billet gears, Atomic end plate (CRMO gas nitrided), high pressure spring, bolts, pickup O-ring and instructions. 

These gears are tough due to the heat treating process after machining. They are made to tight tolerances and the sizing is very consistent.  

High performance Ford 6 cylinder DOHC engines need a high performance oil pump, and Atomic has engineered the answer. We produce billet steel oil pump gears to replace the powdered metal OE gears and also supply fully prepped pumps or can rebuild your own.

Barra, 2J Toyota and various Nissan oil pumps are Gerotor design pumps which are driven directly off the snout of the crankshaft and subsequently are subjected to twisting moments that increase substantially with RPM. These torsional forces cause the oil pump drive gear to be thrust clockwise and anti clockwise, which eventually leads to the failure of the gear. The torsional moments are of a higher frequency and greater amplitude in manual gearbox equipped cars due to them being “on and off” the throttle more often during gear changes, downshifting etc.