Description

Sierra’s 18-3420 Water Pump Base is designed for use with MR and Alpha One drives (1985-1990). It is interchangeable with GLM 12320, Mallory 9-43308, Mercruiser Stern Drive 46-44292A3, 46-44292Q03, 46-44292T1, Mercury Marine 46-44292A3, 46-44292Q03, 46-44292T1. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use with MR and Alpha One drives (1985-1990)
Interchangeable with GLM 12320, Mallory 9-43308, Mercruiser Stern Drive 46-44292A3, 46-44292Q03, 46-44292T1, Mercury Marine 46-44292A3, 46-44292Q03, 46-44292T1
Includes one water pump base per package
Each Sierra product meets or exceeds the original equipment part it replaces