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Mercruiser shim kits *Top cover *Upper gearcase

Top cover assembly shim kits for upper gearcase
drive shaft torque adjustment

  • Shim kit (5 units)#23260 for tapered roller bearing #21510 and shim kit #23261 for bearing #21511
  • Used to obtain bearing preload of 2 to 6 pounds of rolling torque
  • 4 bolts on top holding cover require 15 to 20 pounds of torque

23260 Mercruiser shims

23260 Mercruiser shims

 
23261 kit

23261 kit

P/N 23261 Shim kit for top or cover unit #21511 with outside diameter of 1-25/32 inch / 15-32563A1 $4.09

For a complete listing of shims, please see our Mercruiser shim application page