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Alpha One - Mercruiser Shift Shaft Bushing

Upper Gear Housing - Upper Shift Shaft Bushing

  • GLM P/N 21423 replaces OEM 23-32632
  • When removing the upper shift shaft, inspect the bushing for wear or play when shaft is installed
  • Mates to the lower unit shaft P/N 21030 (OEM 77481-1)

21423 bushing

21423 bushing

P/N 21423 Bushing $15.29

Customers who ordered P/N 21423 also purchased:

21421 Intermediate shift shaft 62104-1
21421 Intermediate shift shaft 62104-1

P/N 21421 Intermediate shift shaft kit. When installing this item, make sure to position the small arm directly forward in relation to the upper gear housing. Replaces OEM 62104-1. $41.15

26-32511A1 Seal Kit Parts 87500
26-32511A1 Seal Kit Parts 87500

P/N 87500 1970 - 1990 up to Alpha 1 Generation 1. Complete upper housing gasket and seal kit. Contains all oil seals, o-rings and gaskets. Make sure to use a gasket sealing compound (available below) on the gaskets and o-rings. Replaces OEM 26-32511A1. $24.15

P/N 87501 Upper seal kit for Alpha 1 Generation 2 (1991 and up) models. Replaces OEM 26-32511A1. $20.15

317201 Large Sealant-Johnson
317201 Large Sealant-Johnson

P/N 317201 Large gasket sealant (includes brush inside lid). 16 ounce. $24.15