Oil Pump 4 Stage R/S w/ Drive

The Oil Pump 4 Stage R/S w/ Drive by Peterson Fluid is a high-performance engine lubrication component engineered for serious hot rodders, circle-track racers, and high-RPM street builds where reliable oil delivery under extreme conditions is non-negotiable. This four-stage pump is designed to maintain consistent pressure and flow at elevated engine speeds, making it essential for naturally aspirated performance engines, supercharged applications, and racing engines that operate well beyond stock parameters. Whether you're building a competition engine or upgrading an existing platform for reliability and longevity, this pump delivers the oxygenated oil circulation your engine demands.

Peterson Fluid's four-stage design utilizes multiple gear chambers to supply oil at varying pressures simultaneously—a critical advantage in complex engine oiling systems where different components require different flow rates and pressures. The R/S designation indicates this pump features a right-side mounting configuration with an integrated drive shaft, allowing direct installation onto compatible engine blocks without requiring external drive coupling adapters. The pump's construction ensures minimal cavitation and maximum volumetric efficiency across a wide RPM range, preventing oil starvation during hard acceleration and sustained high-speed operation while maintaining proper pressure at idle. At 9.11 lbs and with compact overall dimensions, this unit integrates cleanly into tight engine compartments without excessive weight penalty.

This pump is ideal for builders upgrading from single-stage factory units or those fabricating custom dry-sump or complex wet-sump systems requiring multiple pressure circuits. Installation requires confirmation of engine block compatibility with the right-side drive configuration and proper oil inlet/outlet port sizing to match your system's plumbing. Experienced mechanics will appreciate the robust engineering and the reliability Peterson Fluid brings to demanding racing and high-performance applications where pump failure is not an option.