Powerhead Gasket Set - Sierra (S18-4325)

Replaces OEM part #

• MERCURY MARINE 27-85491A90
  Contains:
  ( 1 ) 18-0940 Baffle Plate to Exhaust Gasket, replaces O.E.# 27-85488-2
  ( 1 ) 18-0879 Adapter Plate Gasket, replaces O.E.# 27-38501-1
  ( 1 ) 18-2810 Block Cover Gasket, replaces O.E.# 27-43777-2
  ( 2 ) 18-0103 Powerhead to Ext. Plate Gasket, replaces O.E.# 27-79650-1
  ( 1 ) 18-0137 Baffle Plate Gasket, replaces O.E.# 27-85492-2
  ( 2 ) 18-2800 Carb. Flange Gasket, replaces O.E.# 27-7579-1
  ( 2 ) 18-0870 Transfer Port Cover Gasket, replaces O.E.# 27-27936-1
  ( 1 ) 18-0539 Rubber Seal Gasket, replaces O.E.# 37721
  ( 1 ) 18-7161 O-Ring, replaces O.E.# 25-32546
  ( 1 ) 18-2844 Thermostat Gasket, replaces O.E.# 27-48818-1
  ( 1 ) 18-2823 Lower Water Pump Base to Face Plate Gasket, replaces O.E.# 27-19553
  ( 1 ) 18-0938 Water Inlet Tube Gasket, replaces O.E.# 27-79797-1
  ( 1 ) 18-2825 Water Pump Base Gasket, replaces O.E.# 27-32771
  ( 1 ) 18-7153 O-Ring, replaces O.E.# 25-25439
  ( 1 ) 18-7151 O-Ring, replaces O.E.# 25-20081

  *Power Head gasket sets do not include head gaskets

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