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Mercruiser Alpha One Tension Washer

GLM Marine aftermarket sterndrive washer upper gearcase outdrive part

  • GLM P/N 28330 replaces OEM 12-45810 or Sierra 18-3712
  • This washer installs between the drive gear and short yoke lock nut in the upper gear case
  • Compatible with all models, all years (except Bravo
  • Tech support exploded view Alpha One drawings

28330 Mercruiser tension washer 12-45810

28330 Tension Washer Alpha One 12-45810

P/N 28330 Tension washer $4.99

Customers who ordered P/N 28330 also purchased:

28310 Yoke Mercruiser Upper 46020-1

28310 Yoke Mercruiser Upper 46020-1

28310 Upper gear housing Mercruiser short yoke.

P/N This part is compatible with all models from 1964 - 1997 serial numbers 1684188 - 0K999999. Replaces OEM 46020-1. $79.99
87500 GLM aftermarket Mercruiser upper gearcase seal kit

87500 GLM aftermarket Mercruiser upper gearcase seal kit

P/N 87500 Mercruiser / Alpha 1 Generation 1 upper housing seal kit up to 1990. Replaces OEM 26-32511A1. $24.95

P/N 87501 1991 and up model lower seal / gasket kit. Replaces OEM 26-88397A1. $29.99

317201 Large Sealant-Johnson

317201 Large Sealant-Johnson

P/N 508235 Small 4 ounce gasket compound. $24.95

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