Mercruiser outdrive parts | Alpha one lower unit repairs

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Mercruiser outdrive bellows kit

MC-1 and Alpha one bell housing transom service kit 1970 - 1990

  • GLM P/N 21950 replaces Mercury OEM 30-803097T1, Sierra 18-2601
  • 2 year manufacturer parts and labor warranty
  • Compatible with 120/140, 4 cylinder, 6 cylinder and V8 models 1970 - 1990
  • Works with serial numbers 3106717 - 0D469858
  • Includes all bellows, clamps, gimbal bearing and seals
  • Bellows adhesive required for proper installation (shown below)
  • Hinge pin tool required to remove hinge pins to access gimbal area (tool shown below)
  • Click here for Mercruiser Alpha 1 Gen 2 (1991 and up) transom kit

21950 Mercruiser Bell housing kit 30-803097T1

21950 Mercruiser Bell housing kit

$145.95 USD

$192.95 Canadian

Parts included:

21905 Gimbal Bearing
85910 Oil seal
39622 Outdrive installation gasket Kit
47110 Water Hose 3/4 inch
47120 Hose 5/8 inch
89050 U-Joint Bellow
89080 Shift Cable Bellow
89100 Exhaust Bellow

Customers Also Purchased:

92-861166Q Adhesive glue

92-861166Q Adhesive glue

P/N 92-86166Q1 Bellows glue / adhesive. Replaces Sierra 18-9031.

$19.00

$23.00

508235 OMC Johnson Compound

508235 OMC Johnson Compound

P/N 508235 Gasket sealing compound. This sealant is used on the o-rings and gaskets when re-sealing the outdrive.

$24.95

$32.95

89100 Exhaust bellows 18654A1

89100 Exhaust bellows

P/N 89100 Exhaust bellow - compatible with all models from 1963 to present, serial numbers 1534570 and up. (Not compatible with Bravo or TRS models)

18654A1

$22.95

$29.95

90200-Hinge-Pin-Tool-91-78310.jpg

P/N 90200 Hinge pin tool. This tool removes the 2 pins that hold the gimbal into the bell housing, allowing access to replace.

91-78310, Sierra 18-9861

$17.95

$23.95