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OMC Sterndrive Shift Assist Modules

Shift Assist Module

Shift Assist Modules

The ESA module (short for electronic shift assist) is an electronic device that helps lower engine RPMs and lightens the load on the outdrive gears. With lower RPMs and less load on the gears, fit becomes easier for the dog-style clutch to shift gears.
Model Years Shift Modules
2.3L / 3.0L / 4.3L 1986-1990 987740
2.5L 1986 987740
3.0L 1992-1993 763806
3.8L 1982-1985 982774
4.3L 1985 982774
4.3L 1986-1988 987740
4.3L 1992-1993 763786
5.0L / 5.7L Chevrolet / GM V8 1986-1990 987738
5.7L 1992 763788
7.5L / 460 1987-1991 987738

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