Oil Pump 2-Stage 1.4psi Front Pressure

This is an R4 Dry Sump 2-Stage oil pump with 1.400 in pressure and 1.200 in scavenge. It features a 3/8" male hex drive shaft with rear drive, designed for use with a V-band mount bracket. Constructed from 6061 T6 Aluminum housings and aluminum rotors. Engineered for superior performance in motorsports, it maintains solid oil pressure with high-temperature, low-viscosity oils and can create significant crankcase vacuum. The lightweight design includes shallow-depth screw-in fittings and profile machining. The steel drive shaft is 5/8" with a 3/8" machined male hex for cam or accessory drives. All R4 pumps include a rear drive provision for direct mounting of accessories (fuel pumps, vacuum pumps, power steering pumps with adapter). These pumps protect and extend engine life by providing proper pressure and volume, maximizing horsepower by creating crankcase vacuum, scavenging, and reducing windage. Proudly made in the USA; engineered, machined, assembled, and tested in Longmont, Colorado. Custom configurations are available.