Dimo Marine

812851A27CYLINDER HEAD ASSEMBLY

Fits models / variants:

Mercury outboard spare part 812851A27 (CYLINDER HEAD ASSEMBLY). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 (3.0L), 225 (3.0L), 250 (3.0L), 225 (3.0L) MARATHON, 225 (3.0L) SEAPRO, 250 L (3.0L), 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 812851A27 (CYLINDER HEAD ASSEMBLY), documented in 14 exploded diagram location(s), across the 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-EFI200-3-0l0T801000 THRU 1B417701352View
Mercury 2-STROKE-EFI200-3-0l1B417702 THRU 1B504988352View
Mercury 2-STROKE-EFI200-3-0l1B504989 THRU 2B528096352View
Mercury 2-STROKE-EFI225-3-0l0T801000 THRU 1B417701352View
Mercury 2-STROKE-EFI225-3-0l1B417702 THRU 1B504988352View
Mercury 2-STROKE-EFI225-3-0l1B504989 THRU 2B528096352View
Mercury 2-STROKE-EFI225-3-0l-marathon0T801000 THRU 1B417701352View
Mercury 2-STROKE-EFI225-3-0l-seapro0T801000 THRU 1B417701352View
Mercury 2-STROKE-EFI250-3-0l0T801000 THRU 1B417701352View
Mercury 2-STROKE-EFI250-3-0l1B417702 THRU 1B504988352View
Mercury 2-STROKE-EFI250-3-0l1B504989 THRU 2B528096352View
Mercury 2-STROKE-EFI250-l-3-0l0T861319 THRU 1B118897352View
Mercury 2-STROKE-EFI300-3-0l-promax0G610221 THRU 0T105297352View
Mercury 2-STROKE-EFI300-3-0l-supermagnum0G610221 THRU 0T105297352View

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Appears in diagrams of these models

  • 200 (3.0L)
  • 225 (3.0L)
  • 250 (3.0L)
  • 225 (3.0L) MARATHON
  • 225 (3.0L) SEAPRO
  • 250 L (3.0L)
  • 300 (3.0L) ProMax
  • 300 (3.0L) SuperMagnum