Sierra International 18-7283 Marine Fuel Pump for Mercruiser Stern Drive Sierra Fuel Pump Meets or exceeds the original equipment quality Sierra part number: 18-7283 Interchangeable with the following: Mallory 9-35423, Mercruiser 97401, 97401A2, 97401A8, 861678A1, 8M0058164, OMC 509404 Fit specific, check part numbers to ensure proper fit