Mercruiser GM Small Block Fuel Pump | Sierra 18-7283 Sierra Fuel Pump Mercruiser GM Small Block | 18-7283 Carter style mechanical fuel pump for Mercruiser GM 305 & 350 cu. in. marine engines. For Mercruiser GM V8 305 & 350 cu. in. marine engines Replaces Carter pump with flange ID M60600 Includes mounting gasket Replaces Mercury 8M0058164, 861678A1, 97401A8, 97401A2, 97401 Replaces Mallory 9-35423