For Alpha 1 Gen 1 drives from 1983 to 1990. This Navalloy anode Kit is specially formulated to be used in all water types:
fresh, salt and brackish. It is also the only kit we recommend for boats kept on boat lifts or trailers.
This kit contains:
1 Gimbal Housing anode 821631A
2 Gimbal Bolt anodes 55989A
1 Trim Tab Flat anode 31640A
Screws and hardware
Zinc anodes are not recommended for Mercruiser outdrives.
For fresh water use, this kit will save you a lot of money versus the magnesium kits.
