Mercury outboard spare part 859404002 (WASHER Injection). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 225 HP Pro XS 6 CYL (3.0L), 250 HP Pro XS 6 CYL (3.0L), JP (3.0L), 300X (3.0L) PRO MAX, 200 HP 6 CYL (3.0L), 200 HP Pro XS 6 CYL (3.0L), 200 HP XS 6 CYL (2.5L) ROS, 200 HP XS SST 6 CYL (2.5L), 225 HP 6 CYL (3.0L), 250 HP 6 CYL (3.0L). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 859404002 (WASHER Injection), documented in 10 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B504989 THRU 1B912785296View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B504989 THRU 1B912785296View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l-ros1E050852 THRU 1E053876316View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-sst-6-cyl-2-5l1E050629 THRU 1E053875316View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B504989 THRU 2B535086296View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-6-cyl-3-0l1B528615 THRU 2B535086296View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B752546296View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B535608296View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l0T997974 THRU 1E003045296View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T429939296View

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Appears in diagrams of these models

  • 225 HP Pro XS 6 CYL (3.0L)
  • 250 HP Pro XS 6 CYL (3.0L)
  • JP (3.0L)
  • 300X (3.0L) PRO MAX
  • 200 HP 6 CYL (3.0L)
  • 200 HP Pro XS 6 CYL (3.0L)
  • 200 HP XS 6 CYL (2.5L) ROS
  • 200 HP XS SST 6 CYL (2.5L)
  • 225 HP 6 CYL (3.0L)
  • 250 HP 6 CYL (3.0L)