MerCruiser 39670A28 Shift Interrupt Interrupter Engine Cut-Out Switch Alpha One Thermostat Housing Parts 3L 1987-1990 (1987 1988 1989

3L 1987-1990 (1987 1988 1989 1990)

120hp & 140hp 4cyl engines used plate 908471 / 0908471

I don't have any of the other lower unit components to go with these

This one has three o-ring grooves but will work fine replacing ones with 2-grooves on Yoke

MerCruiser 39670A28 Shift Interrupt Interrupter Engine Cut-Out Switch Alpha One Thermostat Housing Parts 3L 1987-1990 (1987 1988 1989Item Details MerCruiser McGill Shift Interrupter Neutral Safety Shift Cut Out Kill Switch 39670A28 (NO LEVER OR SCREWS INCLUDED) Replaces the following 39670A22 39670A38 39670A5 THIS IS A BRAND NEW SWITCH ASSEMBLY WITH NEW WIRE CONNECTIONS, DOES NOT INCLUDE LEVER ASSEMBLY YOU WILL HAVE TO UNSCREW AND STEAL THAT FROM YOUR EXISTING SWITCH. If your engine is dying when shifted into reverse, it means you have a bad overstretched shift cable Please test