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

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Alpha One Shift Shaft Washer

Lower Unit Washer for Shift Shaft

  • GLM P/N 21800 replaces OEM 12-29395 or Sierra 18-4267
  • 5 washers included in pack
  • Installs onto vertical shift shaft in the lower unit on models up to 1990

Tech support exploded view Alpha One drawings
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21800 Alpha Washers

21800 Washers

P/N 21800 Alpha 1 Washer set 5 units $4.89

Customers who ordered P/N 21800 also purchased:

21030 Shift Shaft Alpha One 77481-1
21030 Shift Shaft 77481-1
P/N 21030 Lower unit shift shaft, compatible with models up to 1990. Replaces OEM 77481-1 $27.15

87510 Seal Kit 26-33144A2
87510 Seal Kit 26-33144A2
P/N 87510 Replaces OEM 26-33144A2 $35.15

12120 Kit
12120 Kit

39622 Bell Housing Gasket 27-94996A2
39622 Bell Housing Gasket 27-94996A2
P/N 39622 Bell housing outdrive gasket kit. Replaces OEM 27-94996A2. $6.15

317201 Large Sealant-Johnson
317201 Large Sealant-Johnson
P/N 317201 Large gasket sealant. 16 ounce. $24.15

P/N 508235 Small size. 4 ounce. $19.15