Sierra Water Coupling Assembly - 18-3151

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Additional Details:

  • Fits: Alpha One Gen II drives & multiple outboard applications

Cross References


  • 12041
  • 12824


  • 9-78110

Mercruiser Stern Drive

  • 816597A1

Fitment Information


  • ALPHA ONE GEN.II 1991-2019 4, stroke
  • VAZER DRIVE 1998-1998 4 stroke
  • VAZER TRANSOM 1998-1998 4 stroke

Mercury Marine

  • 200 DFI 1997-1997 200hp 2 stroke 6 cylinders
  • 225 3.0L CARB) 1994-1998 225hp 2 stroke 3 liters 6 cylinders
  • 225 3.0L EFI) 1995-1998 225hp 2 stroke 3 liters 6 cylinders
  • 225 MARATHON CARB 1994-1998 225hp 2 stroke 3 liters 6 cylinders
  • 225 SEAPRO CARB 1994-1998 225hp 2 stroke 3 liters 6 cylinders
  • 250 EFI 1995-1998 250hp 2 stroke 3 liters 6 cylinders

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