Mercury outboard spare part 846859A1 (PUMP ASSEMBLY Hydraulic). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 HP XS 6 CYL (2.5L), 250 HP XS 6 CYL (3.0L), 225 EFI PRO MAX/SUPER MAG, 200 EFI PRO MAX/SUPER MAG, 300X (3.0L) PRO MAX, 150/200 HP PRO MAX/SUPER MAG. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 846859A1 (PUMP ASSEMBLY Hydraulic), documented in 12 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l0T235000 THRU 0T818180-, 11View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l0T818181 THRU 1E000796-, 11View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l1E000797 THRU 1E002110-, 11View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T651945 THRU 0T818042-, 11View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T818043 THRU 0T997973-, 11View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T997974 THRU 1E000796-, 11View
Mercury 2-STROKE-EFI150-200-hp-pro-max-super-mag0G610050 THRU 0G856999-, 11View
Mercury 2-STROKE-EFI200-efi-pro-max-super-mag0G857000 THRU 0G858150-1View
Mercury 2-STROKE-EFI225-efi-pro-max-super-mag0G610104 THRU 0G856999-1View
Mercury 2-STROKE-EFI225-efi-pro-max-super-mag0G857000 THRU 0T429939-1View
Mercury 2-STROKE-EFI225-efi-pro-max-super-magARCHIVE CAT 80918495-1View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T429940 THRU 0T999587-1View

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Appears in diagrams of these models

  • 200 HP XS 6 CYL (2.5L)
  • 250 HP XS 6 CYL (3.0L)
  • 225 EFI PRO MAX/SUPER MAG
  • 200 EFI PRO MAX/SUPER MAG
  • 300X (3.0L) PRO MAX
  • 150/200 HP PRO MAX/SUPER MAG