Alpha One & Gen 2 Outdrive Parts *Drawings *Videos

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Alpha 1 upper gearcase yoke shaft lock nut

Stern drive lock nut for upper gearcase

  • P/N 28360 Locknut OEM 11-22339
  • Lock nut for upper gearcase
  • Installs on to outdrive yoke shaft P/N 28310 OEM 46020-1
  • Fits MC-1, R, MR Alpha one and Alpha one generation 2
  • Exploded view Mercruiser drawings
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28360 Mercruiser pinion gear lock nut 11-22339

28360 Mercruiser gear nut

P/N 28360 Lock nut OEM 11-22339 $5.99

Locknut fit GLM yoke shafts with part numbers 28310 and 28312.
Fits MC-1, R, MR Alpha one and Alpha one generation 2.
Note a new nut should be used each time the seal get change.

Customers who ordered P/N 28360 also purchased:

12120

GLM 12120 Water pump

P/N 12120 Outdrive lower gear case water pump impeller kit. For Alpha One 1984-1990 models. Replaces Sierra 18-3320. $42.99

90095 Bearing carrier puller in the lower unit

90095 Bearing carrier puller in the lower unit

P/N 90095 Prop and bearing carrier puller $104.99

90110 Tool
90110 Tool

Shift cable tool GLM aftermarket
P/N 90110 or OEM 91-12037 Used to remove and install shift cable on outdrive gimbal housings