YAMAHA POWERHEAD GASKET KIT 20HP, 25HP 1984 - 1988 6G0-W0001-00

Powerhead Gasket Kit for Yamaha 20HP - 25HP 

• Part Number Cross-Reference & Supersessions

  • Yamaha OEM Part Numbers:

    • 6G0-W0001-00 / 6G0-W0001-00-00 (Primary Part Number)

    • 6G0-W0001-01-00 / 6G0-W0001-02-00 (Superseded / Revision Part Numbers)

    • 6L3-W0001-00-00 (Interchangeable OEM Part Number)

  • Aftermarket Cross-Over Numbers:

    • Sierra Marine: 18-99092

    • Mallory Marine: 9-74507

    • Pro Marine: 6G0W0001

  Engine Fitment & Application Chart

  Feature	Details
  Part Type	Powerhead Gasket Set
  Engine Type	Yamaha 2-Stroke, 2-Cylinder Twin
  Horsepower	20 HP & 25 HP
  Model Years	1984 – 1988

  Compatible Outboard Models

  • Yamaha 20 HP Models:

    • 20D / 20DMH

    • 20HP 2-Stroke 2-Cylinder twin models (1984–1988)

  • Yamaha 25 HP Models:

    • 25N / 25NMH

    • 25EL / 25ES / 25ML / 25MS (6G0 model code series)

    • 25HP 2-Stroke 2-Cylinder twin models (1984–1988)

  Kit Contents Include

  • Cylinder Head Gasket

  • Powerhead Base / Crankcase Adapter Gasket

  • Intake Manifold & Reed Valve Gaskets

  • Exhaust Inner & Outer Cover Gaskets

  • Upper & Lower Crankshaft Oil Seals

  • Water Jacket Cover & Thermostat Gaskets

  • O-Rings & Miscellaneous Sealing Grommets