Alpha One & Gen 2 Outdrive Parts *Drawings *Videos

T.C. Electronics / Marine ( 416 ) 751-7326 home page

Mercruiser Alpha 1 forward gear shims *Lower unit parts

GLM Aftermarket stern drive forward gear shims for lower gearcase

  • Cost effective aftermarket Mercruiser outdrive lower seal kits and shims
  • Aftermarket Tools for Mercruiser stern drive repairs
  • Alpha one lower gear case exploded view drawing
  • If help is required, contact our service tech for advice troubleshooting your Mercruiser stern drive unit at
  • (416) 751-7326
  • Mercruiser outdrive drawings
    Search by part number or description here

23220 forward gear shims

23220 forward gear shims

P/N 23220 shims OEM 15-47397A1 $13.99

Customers who ordered P/N 23220 also purchased:

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


GLM 12120 Water pump

P/N 12120 Outdrive lower gear case water pump impeller kit. For Alpha One 1984-1990 models. Replaces Sierra 18-3320. $35.95

90110 Tool
90110 Tool

Shift cable tool GLM aftermarket
P/N 90110 or OEM 91-12037 Used to remove and install shift cable on outdrive gimbal housings