Mercury outboard spare part 850839T01 (VALVE Exhaust). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30 HP EFI 3 CYL, 40 HP EFI 3 CYL, 2 HP Carb, 2.5 HP Carb, 3.5 HP Carb JCI, 3.5 HP Carb, 8 HP Carb (209cc), 9.9 HP Carb (209cc), 25 HP EFI Jet 3 CYL, 10 HP EFI 2 CYL (333cc), 15 HP EFI 2 CYL (333cc), 25 HP EFI SeaPro 3 CYL, 35 HP EFI Jet 4 CYL, 6 HP EFI 2CYL (209cc), 8 HP EFI 2 CYL (209cc), 9.9 HP EFI 2 CYL (209cc), 9.9 HP EFI ProKicker 2 CYL (209cc), 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 850839T01 (VALVE Exhaust), documented in 35 exploded diagram location(s), across the 4-STROKE-CARB, 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-CARB2-5-hp-carb0R131842 UP31View
Mercury 4-STROKE-CARB2-hp-carb0R131842 THRU 0R50478931View
Mercury 4-STROKE-CARB3-5-hp-carb0R131842 UP31View
Mercury 4-STROKE-CARB3-5-hp-carb-jci0R568285 UP31View
Mercury 4-STROKE-CARB8-hp-carb-209cc0P325500 THRU 1R27994422View
Mercury 4-STROKE-CARB8-hp-carb-209cc0R042475 THRU 1R27994422View
Mercury 4-STROKE-CARB9-9-hp-carb-209cc0P325500 THRU 1R27994422View
Mercury 4-STROKE-CARB9-9-hp-carb-209cc0R042475 THRU 1R27994422View
Mercury 4-STROKE-EFI10-hp-efi-2-cyl-333cc0R833820 UP112View
Mercury 4-STROKE-EFI15-hp-efi-2-cyl-333cc0R833820 UP112View
Mercury 4-STROKE-EFI15-hp-efi-seapro-2-cyl-333cc0R833820 UP112View
Mercury 4-STROKE-EFI20-hp-efi-2-cyl-333cc0R833820 UP112View
Mercury 4-STROKE-EFI25-hp-efi-3-cyl0R106999 THRU 1R162636112View
Mercury 4-STROKE-EFI25-hp-efi-3-cyl1R154758 UP112View
Mercury 4-STROKE-EFI25-hp-efi-jet-3-cyl0R165086 THRU 1R162636112View
Mercury 4-STROKE-EFI25-hp-efi-jet-3-cyl1R154758 UP112View
Mercury 4-STROKE-EFI25-hp-efi-seapro-3-cyl1R154758 UP112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl0P153500 THRU 0P400999112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl0R106999 THRU 1R162636112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl0T409000 THRU 1B226999112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl1C109093 THRU 1C456299112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl1C456300 UP112View
Mercury 4-STROKE-EFI30-hp-efi-3-cyl1R154758 UP112View
Mercury 4-STROKE-EFI35-hp-efi-jet-4-cyl1C453840 UP112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl0P153500 THRU 0P400999112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl0P401000 THRU 0P515896112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl0T409000 THRU 1B226999112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl1B227000 THRU 1B355027112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl1C000001 THRU 1C043416112View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl1C043417 THRU 1C456299112View
Mercury 4-STROKE-EFI6-hp-efi-2cyl-209cc1R363055 UP112View
Mercury 4-STROKE-EFI8-hp-efi-2-cyl-209cc1R281445 UP112View
Mercury 4-STROKE-EFI9-9-hp-efi-2-cyl-209cc1R281445 UP112View
Mercury 4-STROKE-EFI9-9-hp-efi-prokicker-2-cyl-209cc1R281445 UP112View
Mercury 4-STROKE-EFI9-9-hp-efi-prokicker-2-cyl-333cc1R008146 THRU 1R278792112View

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Appears in diagrams of these models

  • 30 HP EFI 3 CYL
  • 40 HP EFI 3 CYL
  • 2 HP Carb
  • 2.5 HP Carb
  • 3.5 HP Carb JCI
  • 3.5 HP Carb
  • 8 HP Carb (209cc)
  • 9.9 HP Carb (209cc)
  • 25 HP EFI Jet 3 CYL
  • 10 HP EFI 2 CYL (333cc)
  • 15 HP EFI 2 CYL (333cc)
  • 25 HP EFI SeaPro 3 CYL
  • 35 HP EFI Jet 4 CYL
  • 6 HP EFI 2CYL (209cc)
  • 8 HP EFI 2 CYL (209cc)
  • 9.9 HP EFI 2 CYL (209cc)
  • 9.9 HP EFI ProKicker 2 CYL (209cc)
  • 9.9 HP EFI ProKicker 2 CYL (333cc)