The Sierra 18-3417 Water Pump Base is interchangeable with the following: GLM 12310, Mallory 9-43306, Mercruiser 46-57234A1. Each Sierra product meets or exceeds the original equipment part it replaces. Designed to fit MC-I & R drives w/o flush screw in housing (1970-1984).
Sierra Water Pump Base
Meets or exceeds the original equipment quality
Interchangeable with the following: GLM 12310, Mallory 9-43306, Mercruiser 46-57234A1
Fit specific, check part numbers to ensure proper fit
