Mercury outboard spare part 889641A02 (PISTON ASSEMBLY (Port - .030 Oversize)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 HP DTS 6 CYL (3.0L), 225 HP DTS 6 CYL (3.0L), 200 HP 6 CYL (3.0L), 200 HP Pro XS 6 CYL (3.0L), 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 889641A02 (PISTON ASSEMBLY (Port - .030 Oversize)), documented in 12 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T599000 THRU 0T80099910ARView
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B504989 THRU 1B91278510ARView
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l0T980000 THRU 1B41770110ARView
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498810ARView
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B504989 THRU 1B96473510ARView
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B504989 THRU 1B91278510ARView
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T599000 THRU 0T80099910ARView
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B504989 THRU 2B53508610ARView
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l0T599000 THRU 1B41770110ARView
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498810ARView
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B504989 THRU 1B96473510ARView
Mercury 2-STROKE-DFI-OPTIMAX250-hp-6-cyl-3-0l1B528615 THRU 2B53508610ARView

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Appears in diagrams of these models

  • 200 HP DTS 6 CYL (3.0L)
  • 225 HP DTS 6 CYL (3.0L)
  • 200 HP 6 CYL (3.0L)
  • 200 HP Pro XS 6 CYL (3.0L)
  • 225 HP 6 CYL (3.0L)
  • 250 HP 6 CYL (3.0L)