Mercury outboard spare part 804508 (WASHER). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 4 HP Carb, 5 HP Carb, 6 HP Carb, 50MH, 6 2 CYL (International), 8 HP 2 CYL (International), 8 HP SEAPRO 2 CYL (International), 9.8 2 CYL (International), 40 (International), 40 MXL MARATHON, 40 MXL SEAPRO, 9.9 2 CYL (International), 5 HP Carb JCI, 10 HP EFI 2 CYL (333cc), 15 HP EFI 2 CYL (333cc), 15 HP EFI SeaPro 2 CYL (333cc), 20 HP EFI 2 CYL (333cc), 25 HP EFI 3 CYL, 25 HP EFI Jet 3 CYL, 25 HP EFI SeaPro 3 CYL, 30 HP EFI 3 CYL, 35 HP EFI Jet 4 CYL, 40 HP EFI 3 CYL, 40 HP EFI 4 CYL, 40 HP EFI Jet 4 CYL, 5 HP Propane, 9.9 HP EFI ProKicker 2 CYL (333cc). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 804508 (WASHER), documented in 42 exploded diagram location(s), across the 2-STROKE-CARB, 4-STROKE-CARB, 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB40-international0N056165 UP81View
Mercury 2-STROKE-CARB40-mxl-marathon0N037781 THRU 0N05616481View
Mercury 2-STROKE-CARB40-mxl-seapro0N037781 THRU 0N05616481View
Mercury 2-STROKE-CARB6-2-cyl-international0N027903 THRU 0N05510931View
Mercury 2-STROKE-CARB6-2-cyl-international0N055110 THRU 0N39239131View
Mercury 2-STROKE-CARB8-hp-2-cyl-international0N027903 THRU 0N05510931View
Mercury 2-STROKE-CARB8-hp-2-cyl-international0N055110 UP31View
Mercury 2-STROKE-CARB8-hp-seapro-2-cyl-international0N014717 THRU 0N05510931View
Mercury 2-STROKE-CARB8-hp-seapro-2-cyl-international0N055110 UP31View
Mercury 2-STROKE-CARB9-8-2-cyl-international0N007788 THRU 0N05510931View
Mercury 2-STROKE-CARB9-8-2-cyl-international0N055110 UP31View
Mercury 2-STROKE-CARB9-9-2-cyl-international0N260037 UP31View
Mercury 4-STROKE-CARB4-hp-carb0P073456 THRU 0P400999161View
Mercury 4-STROKE-CARB4-hp-carb0P401000 THRU 0R411837161View
Mercury 4-STROKE-CARB4-hp-carb0R000001 THRU 0R067089161View
Mercury 4-STROKE-CARB4-hp-carb0R067090 THRU 0R411837161View
Mercury 4-STROKE-CARB4-hp-carb0R411838 UP481View
Mercury 4-STROKE-CARB5-hp-carb0P073456 THRU 0P400999161View
Mercury 4-STROKE-CARB5-hp-carb0P401000 THRU 0R411837161View
Mercury 4-STROKE-CARB5-hp-carb0R000001 THRU 0R067089161View
Mercury 4-STROKE-CARB5-hp-carb0R067090 THRU 0R411837161View
Mercury 4-STROKE-CARB5-hp-carb0R411838 UP481View
Mercury 4-STROKE-CARB5-hp-carb-jci0R560794 UP481View
Mercury 4-STROKE-CARB6-hp-carb0P073456 THRU 0P400999161View
Mercury 4-STROKE-CARB6-hp-carb0P401000 THRU 0R411837161View
Mercury 4-STROKE-CARB6-hp-carb0R000001 THRU 0R067089161View
Mercury 4-STROKE-CARB6-hp-carb0R067090 THRU 0R411837161View
Mercury 4-STROKE-CARB6-hp-carb0R411838 UP481View
Mercury 4-STROKE-EFI10-hp-efi-2-cyl-333cc0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI15-hp-efi-2-cyl-333cc0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI15-hp-efi-seapro-2-cyl-333cc0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI20-hp-efi-2-cyl-333cc0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI25-hp-efi-3-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI25-hp-efi-jet-3-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI25-hp-efi-seapro-3-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI35-hp-efi-jet-4-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI40-hp-efi-4-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI40-hp-efi-jet-4-cyl0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI5-hp-propane0R936270 THRU 1R28049591View
Mercury 4-STROKE-EFI9-9-hp-efi-prokicker-2-cyl-333cc1R008146 THRU 1R27879291View

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Appears in diagrams of these models

  • 4 HP Carb
  • 5 HP Carb
  • 6 HP Carb
  • 50MH
  • 6 2 CYL (International)
  • 8 HP 2 CYL (International)
  • 8 HP SEAPRO 2 CYL (International)
  • 9.8 2 CYL (International)
  • 40 (International)
  • 40 MXL MARATHON
  • 40 MXL SEAPRO
  • 9.9 2 CYL (International)
  • 5 HP Carb JCI
  • 10 HP EFI 2 CYL (333cc)
  • 15 HP EFI 2 CYL (333cc)
  • 15 HP EFI SeaPro 2 CYL (333cc)
  • 20 HP EFI 2 CYL (333cc)
  • 25 HP EFI 3 CYL
  • 25 HP EFI Jet 3 CYL
  • 25 HP EFI SeaPro 3 CYL
  • 30 HP EFI 3 CYL
  • 35 HP EFI Jet 4 CYL
  • 40 HP EFI 3 CYL
  • 40 HP EFI 4 CYL
  • 40 HP EFI Jet 4 CYL
  • 5 HP Propane
  • 9.9 HP EFI ProKicker 2 CYL (333cc)