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

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Alpha 1 Generation 2 Bellows Service Kits

Outdrive Bell Housing Parts Rebuild Kit for all
1991 and up Models

  • Compatible with all Mercruiser models (Alpha 1 Generation 2) from 1991 and up
  • Includes all bellows, gimbal bearing and seal, installation gasket and water hose
  • MC-1, R, MR and Alpha 1 model kits (1970 - 1990) also available
  • Required tools and compounds shown below

Alpha One tech support exploded view outdrive drawing
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21960 Transom Parts Alpha 1 Gen 2

21960 Transom Parts Alpha 1 Gen 2

P/N 21960 Bell Housing Service Kit $169.95

Parts Included in Kit are Shown Below (can also be purchased separately)

89100 Exhaust 18654A1

89100 Exhaust 18654A1

89180 U-Joint Drive Shaft 816431A1

89180 U-Joint Drive Shaft 816431A1

P/N 89180 #816431A1 or Sierra 18-2747 $59.15

89080 Shift Cable

89080 Shift Cable

P/N 89080 Shift cable bellow 74639 or Sierra 18-2753 $11.15

39622 Installation Mounting Gasket 27-94996T2

39622 Installation Mounting Gasket 27-94996T2

P/N 39622 #27-94996T2 or Sierra 18-2619 $9.15

47110 Water Hose 32-41725-33

47110 Water Hose 32-41725-33

P/N 47110 #32-41725-33 or Sierra 18-3602 $7.00

21905 Bell Housing Gimbal Bearing 30-60794A4

21905 Bell Housing Gimbal Bearing 30-60794A4

85910 Oil Seal 26-88416

85910 Oil Seal 26-88416

P/N 85910 $15.15 #30-60794A4

Customers who ordered P/N 21960 also purchased:

18-9031 Adhesive

18-9031 Adhesive

P/N 18-9031 Bellows glue $19.15

90200 Tool Hinge Pin 91-78310

90200 Tool Hinge Pin 91-78310

P/N 90200 Hinge pin removal / installation tool OEM 91-78310 or Sierra 18-9861 $17.15