Ext Oil Pump 3-Stage Tri-Lobe LHS FP Drive

The Ext Oil Pump 3-Stage Tri-Lobe LHS FP Drive by MOROSO (MPN 22363) is a professional-grade external oil pump designed for high-performance engines requiring robust circulation and pressure management. Built for serious engine builders and mechanics working on modified or racing powerplants, this tri-lobe pump delivers superior volumetric efficiency compared to standard two-lobe designs. Whether you're upgrading a street performance build or assembling a competition engine, this external pump offers the flow capacity needed to maintain consistent oil pressure under extreme operating conditions.

The three-stage tri-lobe design significantly increases displacement per revolution, enabling higher volume output at lower RPM ranges—critical for proper engine lubrication during cold starts and sustained high-load operation. The left-hand shaft (LHS) configuration accommodates specific engine block layouts and crankshaft orientations common in custom builds and engine swaps. The FP (front-pad or direct) drive connection ensures direct, reliable coupling to your crankshaft or accessory belt system without slippage, eliminating the parasitic losses associated with slack or wear in older pump designs. At 8.5 lbs and compact dimensions of 10 x 10 x 14 inches, this pump integrates efficiently into tight engine bays while maintaining the pressure output required for modern performance applications.

This pump is ideal for engine builders working on small-block, big-block, or stroker platforms where OEM pump capacity falls short of modified engine demands. Professional mechanics and racing teams rely on MOROSO's engineering for consistent, repeatable results in both street and track applications. Before installation, verify shaft orientation compatibility with your specific engine block and confirm FP drive attachment compatibility with your existing crankshaft or drive system to ensure seamless integration into your custom cooling and lubrication setup.