Complete Lower Unit Gear Case Alpha One Gen. I type 1
MC-1 & R
FOWARD GEAR BEARING BORE SIZE 3.4985-3.50 IN I.D.
This product replaces following manufacturer's part nr
- Mercruiser: 1623-5356A4
- Sierra: SIE18-2402
- GLM: GLM17000
The references that are listed here are trademarks that apply to the respective trademark owners. The references are used only for a reference purpose. Our product is compatible with these reference numbers. Please note that our product is an aftermarket product (non-OEM), unless otherwise stated.