The Airdog R4SBD349 Raptor 4G 150GPH Fuel Pump is designed for optimal fuel delivery and performance for your 1989-1993 5.9 Cummins engine. Featuring advanced 4G Technology and a Gerotor Pump Design, this pump delivers a robust 150GPH flow rate, enhancing engine performance and reliability. The built-in adjustable regulator, preset at 10-13 PSI, ensures precise fuel pressure without the need for a return line, simplifying installation. Its whisper-quiet operation means you’ll enjoy superior performance without the noise. Complete with all necessary components, this pump is engineered for long-lasting dependability. Order yours today for enhanced performance and hassle-free installation.