The Sierra 18-7282 Fuel Pump fits 4 cylinder (2.5L, 3.0L and 3.7L) engines and is interchangeable with the following: Mallory 9-35422, Mercruiser 42725A3, 861676T09, 8M0073435, 861676A1, OMC 509407. Flange ID: M60337. Use with 18-0889 Fuel Pump Gasket and 18-7784 Fuel Filter. Each Sierra product meets or exceeds the original equipment part it replaces. Includes mounting gasket.