YAMAHA POWERHEAD GASKET KIT 40HP - 50HP 1984 - 2006 6H4-W0001-A1

Powerhead Gasket Kit for Yamaha 20HP - 25HP 

• • Yamaha OEM Part Numbers:

    • 6H4-W0001-A1 / 6H4-W0001-A1-00 (Primary Part Number)

    • 6H4-W0001-00 / 6H4-W0001-01 / 6H4-W0001-A0 (Superseded Part Numbers)

    • 6H4-W0001-02 / 6H4-W0001-A2-00 (Later Revision Part Numbers)

  • Aftermarket Cross-Over Numbers:

    • Sierra Marine: 18-99079

    • GLM: 87836

    • Mallory Marine: 9-74502

    • Pro Marine: 6H4W0001

  Engine Fitment & Application Chart

  Feature	Details
  Part Type	Powerhead Gasket Set
  Engine Type	Yamaha 2-Stroke, 3-Cylinder Twin/Triple Carburetor
  Horsepower	40 HP & 50 HP
  Model Years	1984 – 2006+

  Compatible Outboard Models

  • Yamaha 40 HP Models (3-Cylinder 6H4 Model Code):

    • 40H / 40V / 40HE / 40VE / 40VTO

    • 40ETLD / 40ETLN / 40TLR / 40TLRB / 40TLRC / 40TLRD

    • 40EJ / 40EJR / 40EL / 40ELR / 40ES / 40ESR / 40MJ / 40ML / 40MS

    • C40EL / C40MSH / C40TLR (3-Cylinder models)

  • Yamaha 50 HP Models (3-Cylinder 6H4 Model Code):

    • 50D / 50ETLD / 50ETLN / 50TLR / 50TLRB / 50TLRC / 50TLRD

    • 50EJ / 50EL / 50ELR / 50ES / P50TLR

    • C50TLR (3-Cylinder models)

  Kit Contents Include

  • Cylinder Head Gasket

  • Powerhead Base / Adapter Plate Gasket

  • Intake Manifold & Reed Valve Block Gaskets

  • Exhaust Inner & Outer Cover Gaskets

  • Upper & Lower Crankshaft Seals / Oil Seals

  • Water Jacket Cover & Thermostat Gaskets

  • Carburetor Mounting Gaskets

  • O-Rings, Exhaust Seals & Grommets