FASS WH-1006R Wire Harness 14 Gauge (WH-1006R) Universal With Relay Cover

FASS is a diesel fuel system manufacturer known for lift pumps and filtration systems. The company designs products that improve fuel delivery and protect injection components. FASS systems support daily driving, towing, and high-performance diesel trucks. FASS fuel systems remove air, vapor, water, and debris from diesel fuel. This helps maintain steady fuel pressure and consistent flow. Clean fuel improves drivability and helps extend injector life. Diesel owners trust FASS for reliable fuel system upgrades. Whether used on a stock truck or a modified build, FASS products deliver dependable performance and long-term engine protection.