Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos

T.C. Electronics / Marine ( 416 ) 751-7326 home page | Alpha One - Mercruiser Shift Shaft Bushing

Alpha 1 lower unit rebuild kit *Gears *Seals *Bearings

GLM Marine aftermarket parts kit contains:
Lower gearcase gears, shims, bearings and seal kits

  • Parts included in kit 25125 contains the following items
  • Lower gear-case gear set 13/21 ratio OEM 43-96084A4
  • Sliding clutch dog 52-66063
  • Roller bearing 3130895
  • Ball bearing 30-88957A1
  • Tapered roller bearing 31-35928A1
  • Shim 15-47397
  • Pinion nut 11-35921
  • Tab washer 14-79447
  • Seal kit P/N 87510 26-32511A1
  • Click here for upper housing gear sets

Tech support exploded view gear set drawings
Search by part number or description here

25115 seals gears bearings shims

25115 seals gears bearings shims

P/N 25125 Alpha One parts kit OEM 43-803091T1 $599.29

Instruction for 10 hour break-in period

Avoid full throttle starts
Do not operate at constant speeds for extended periods
Do not exceed 75% of full throttle during the first 5 hours of operations.
During the next 5 hours, full throttle operation is permissible for brief periods.
Shift into forward gear a minimum of 10 times during break-in with moderate engine speed after each shift