Alpha One & Gen 2 Outdrive Parts *Drawings *Videos
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Mercruiser Alpha 1 gimbal bearing *Bell housing part

Aftermarket bearing with tolerance ring

  • Includes tolerance ring - new sealed design does not require lubrication
  • Always replace the oil seal when installing a new bearing
  • OEM 30-862540A3, 30-60794A4
  • Exploded view Mercruiser drawings
    Search by part number or description here

21900 Gimbal bearing

21900 Gimbal bearing heavy duty

P/N 21905 $69.99

Customers who bought P/N 81390 also purchased:
87510 Mercruiser seals gasket kit 26-33144A2

87510 Mercruiser seals gasket kit 26-33144A2

90095 Bearing carrier puller in the lower unit

90095 Bearing carrier puller in the lower unit

P/N 90095 Prop and bearing carrier puller $104.99
21950 Bellows 30-803097T1
21950 Bellows 30-803097T1

P/N 21950 For 1970 - 1990 Mercruiser models with serial numbers 3469428-0D46985. $145.95
12120 Alpha 1 outdrive water pump kit Mercruiser 1984-1990

12120 Alpha 1 outdrive water pump kit Mercruiser 1984-1990

P/N 12120 Alpha 1 gen 1 outdrive impeller pump kit with housing and gaskets .Compatible with 1984-1990 models. Replaces Sierra 18-3320. $35.95

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