Mercury outboard spare part 818161A4 (PUMP ASSEMBLY Hydraulic). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits V-175, 300X (3.0L) PRO MAX, 200 EFI PRO MAX/SUPER MAG, 225 EFI PRO MAX/SUPER MAG, 225X EFI PROMAX, 300 (3.0L) ProMax, 300 (3.0L) SuperMagnum. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 818161A4 (PUMP ASSEMBLY Hydraulic), documented in 11 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARBv-1750C239553 THRU 0D081999-, 11View
Mercury 2-STROKE-CARBv-1750D082000 THRU 0G303045-, 11View
Mercury 2-STROKE-CARBv-1750G303046 THRU 0G760299-, 11View
Mercury 2-STROKE-CARBv-1750G760300 THRU 0G960499-, 11View
Mercury 2-STROKE-CARBv-1754301235 THRU 0C100860-, 11View
Mercury 2-STROKE-CARBv-1758058870 THRU 0B384939-, 11View
Mercury 2-STROKE-EFI225x-efi-promax0T430254 THRU 0T819605-, 11View
Mercury 2-STROKE-EFI300-3-0l-promax0G610221 THRU 0T105297-, 11View
Mercury 2-STROKE-EFI300-3-0l-supermagnum0G610221 THRU 0T105297-, 11View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T429939-, 11View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T429940 THRU 0T999587-1View

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Appears in diagrams of these models

  • V-175
  • 300X (3.0L) PRO MAX
  • 200 EFI PRO MAX/SUPER MAG
  • 225 EFI PRO MAX/SUPER MAG
  • 225X EFI PROMAX
  • 300 (3.0L) ProMax
  • 300 (3.0L) SuperMagnum