Sierra 18-3507 Water Pump Kit Without Base

Sierra’s 18-3507 Water Pump Kit does not include the base. It is designed for use with Mercury/Mariner engines. The kit contains: (1) Sierra 18-2823 Lower Water Pump Gasket, (1) Sierra 18-2824 Water Pump Gasket, (1) Sierra 18-2825 Water Pump Base Gasket, (1) Sierra 18-2841 Water Pump Base Gasket, (2) Sierra 18-2945 Drain Screw Gaskets, (1) Sierra 18-2948 Rubber Washer, (1) Sierra 18-3007 Impeller, (1) Sierra 18-3107 Impeller Plate, (1) Sierra 18-3118 Water Pump Housing, (1) Sierra 18-7115 O-Ring, (1) Sierra 18-7155 O-Ring, and (1) Sierra 18-7174 O-Ring. It is interchangeable with GLM 12010, Mallory 9-48301, and Mercury Marine 46-32767A1, 46-60366A1, and 46-60366Q1. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.