![Complete Lower Gear Case Complete Lower Gear Case](https://nauticalspareparts.com/432-home_default/complete-lower-gear-case.jpg)
Replaces: 1623-8951A27, 1623-8951A37
For: MR/ALPHA Style
Bore size 3.2635-3.2650. Includes tapered roller bearing for non-tractor 14/28 or 17/28 gears.
Replaces: Mercruiser: 1623-8951A43, 5-5010147CP, 623-8951A43, 8951A43, Sierra: 18-2443
OEM: 1623-8951A43
Engines: 6225577 + (1972-92)
Gear Teeth: 13/21
Splines: 13
OEM: 1623-8951A43
3 and 5 days withing the EU, up to 10 days elsewhere.
Can be returned or exchanged, with conditions.