Starter Pack of 2 V78543

Mercury Marine Outboards12 Volt, CCW, 8-Tooth PinionFits these Mariner and Mercury outboard engines including these:MARINER Marine135CXL 2.0L - 121.9ci - 135 H.P. 1993-2000135ELPTO 2.0L - 121.9ci - 135 H.P. 1986-1988135EXLPTO 2.0L - 121.9ci - 135 H.P. 1986-1988135L 2.0L - 121.9ci - 135 H.P. 1989-2000135XL 2.0L - 121.9ci - 135 H.P. 1989-2000150 Magnum EFI 2.5L - 153.0ci - 150 H.P. 1992-1998150 Magnum II 2.5L - 153.0ci - 150 H.P. 1989-1991150 Magnum III 2.5L - 153.0ci - 150 H.P. 1994-2000150CXL 2.0L - 121.9ci - 150 H.P. 1989-1998150CXL EFI 2.5L - 153.0ci - 150 H.P. 1994-2000150CXL Saltwater 2.5L - 153.0ci - 150 H.P. 1999-2000150ELPT 2.0L - 121.9ci - 150 H.P. 1979-1985150ELPTO 2.0L - 121.9ci - 150 H.P. 1986-1988150ELXPTO 2.0L - 121.9ci - 150 H.P. 1986-1988150EXLPT 2.0L - 121.9ci - 150 H.P. 1979-1985And Many More!MERCURY Marine135CXL 2.0L - 121.9ci - 135 H.P. 1990-2001135ELPTO Marathon 2.0L - 121.9ci - 135 H.P. 1986-1988135EXLPTO Marathon 2.0L - 121.9ci - 135 H.P. 1986-1988135L 2.0L - 121.9ci - 135 H.P. 1989-2001135XL 2.0L - 121.9ci - 135 H.P. 1989-2001150CXL 2.0L - 121.9ci - 150 H.P. 1989-1998150CXL EFI 2.5L - 153.0ci - 150 H.P. 1995-2000150CXL Saltwater 2.5L - 153.0ci - 150 H.P. 1999-2000150ELPT 2.0L - 121.9ci - 150 H.P. 1978-1985150ELPTO 2.0L - 121.9ci - 150 H.P. 1986-1988150ELPTO XR2 2.0L - 121.9ci - 150 H.P. 1984-1987150ELPTO XR4 2.3L - 142.2ci - 150 H.P. 1988-1991150ELXPTO 2.0L - 121.9ci - 150 H.P. 1984-1988150EXLPT 2.0L - 121.9ci - 150 H.P. 1978-1985150L 2.0L - 121.9ci - 150 H.P. 1989-1998And Many More!Replaces:Arco Marine 5380Mercury Marine 50-44414, 50-44415, 50-77141, 50-79472United Technologies 1718328-M030SM, 4820540-M030SM, SM17183, SM48205Sierra Marine 18-5608, 18-5643