Mercruiser Alpha 1 Generation 2 Bellows

Mercruiser Bellows - Exhaust, U-Joint and Transom Kits for Alpha One / MR Stern Drives

  • P/N 89100 bellow replaces Mercury OEM 18654A1
  • Kit includes hose clamps and grounding clips
  • When installing, make sure to use a marine grade glue or cement
  • Tech support exploded view Alpha One drawings
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89100 Exhaust - Mercruiser 18654A1

P/N 89100 Exhaust bellow OEM 18654A1 $26.99

Customers who ordered P/N 89100 also purchased:

89050 Alpha One 60932A4

P/N 89050 Drive shaft bellows for all models from 1973 and 1990, serial numbers 3469428 to 0D469858. Replaces OEM 60932A4. $46.99

89180 U-joint drive shaft 81641-31A1

P/N 89180 U-joint bellow for Alpha 1 Generation 2 (1991 and up only, serial numbers 0D469859 and up). Replaces OEM 816431A1. $51.99

18-9031 Sierra bellows adhesive

P/N 18-9031 Bellows glue. $23.99

21950 OMC Transom service kit

P/N 21950 Complete bellows kit for the Mercruiser bell housing years 1970 – 1990. For 1970 – 1990 Mercruiser models with serial numbers 3469428-0D46985. OEM 30-803097T1 .$145.95


21950-90200 Repair Package

P/N 21950-90200 *Most Popular* Transom service repair package. Same as above, also includes adhesive glue and the hinge pin tool for the bell housing $199.95

21960 Transom Parts

P/N 21960 Alpha One service kit for 1991 – up models (serial numbers 0D469859-up) $169.95

21960-90200 Transom Repair Package

P/N 21960-90200 *Most Popular* Transom service repair package. Same as above, also includes hinge pin tool removal tool for the bell housing, and the adhesive glue for rubber. 1991 and up models. $199.95

Customers who ordered P/N 89100 or 21950 also purchased:

P/N 12120 Lower gear case water pump impeller kit rebuild kit, with housing. Compatible with 1984-1990 models. Replaces Sierra 18-3320. $35.95