Mercury outboard spare part 816575A6 (SEAL KIT Gear Housing). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 250 HP XS 6 CYL (3.0L), 225 HP Pro XS 6 CYL (3.0L), 250 HP Sport XS 6 CYL (2.5L), 250 HP Pro XS 6 CYL (3.0L), 225 HP SPORT XS 6 CYL (2.5L), 225 HP XS 6 CYL (2.5L), 2.5XS (2.5L). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 816575A6 (SEAL KIT Gear Housing), documented in 25 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX2-5xs-2-5l0T997974 THRU 1E000796-1View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B104549 THRU 1B426560-1View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B752546-1View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B535608-1View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-2-5l1E002584 THRU 1E050825-1View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-xs-6-cyl-2-5l1E002584 THRU 1B792195-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B752546-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B535608-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E002342 THRU 1E051823-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E051824 THRU 1E052994-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T651945 THRU 0T818042-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T818043 THRU 0T997973-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T997974 THRU 1E000796-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E000797 THRU 1E002341-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E002342 THRU 1E051113-1View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E053158 THRU 1E053958-1View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E001867 THRU 1E052057-1View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E052058 THRU 1E053987-1View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l1E003046 THRU 1E052824-1View
Mercury 2-STROKE-EFI250-l-3-0l0T861319 THRU 1B118897-1View
Mercury 2-STROKE-EFI250xb-3-0l0G980600 THRU 0T800999-1View
Mercury 2-STROKE-EFI300-3-0l-promax0G610221 THRU 0T105297-1View
Mercury 2-STROKE-EFI300-3-0l-supermagnum0G610221 THRU 0T105297-1View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T429939-1View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T429940 THRU 0T999587-1View

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Appears in diagrams of these models

  • 250 HP XS 6 CYL (3.0L)
  • 225 HP Pro XS 6 CYL (3.0L)
  • 250 HP Sport XS 6 CYL (2.5L)
  • 250 HP Pro XS 6 CYL (3.0L)
  • 225 HP SPORT XS 6 CYL (2.5L)
  • 225 HP XS 6 CYL (2.5L)
  • 2.5XS (2.5L)