Oil Pump Kit

The Oil Pump Kit by MELLING (model K-20I) is an essential rebuild component for mechanics and engine builders maintaining or restoring high-mileage vehicles. As an oil pump deteriorates, internal wear reduces pressure delivery, starving critical engine bearings of lubrication and accelerating catastrophic failure. This kit addresses that failure point by replacing worn internal gears, rotors, and sealing surfaces without requiring a full pump body replacement when core damage is minimal.

MELLING's kit includes precision-engineered internal components engineered to OEM specifications, restoring volumetric efficiency and pressure output to factory standards. The compact assembly (7.6 inches in length, weighing just 0.96 lbs) fits within the pump housing cavity, where gear-to-gear and gear-to-housing tolerances are held to thousandths of an inch. By replacing only the wear surfaces rather than the entire pump casting, technicians preserve timing alignment and reduce labor time while maintaining the structural integrity of the original mounting.

This kit benefits DIY rebuilders and professional shops performing full engine overhauls, timing chain jobs, or preventative maintenance on vehicles with 80,000+ miles showing low oil pressure symptoms. The K-20I configuration is designed for popular small-block applications where pressure-relief valve adjustment and filter bypass thresholds demand matched pump flow rates. Installation requires pump removal and disassembly; verify your engine platform and pump casting number against MELLING's compatibility chart before ordering to ensure correct fit and pressure curve.