Mercury outboard spare part 858366T2 (PLATE). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

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

Part Specifications and Installation Reference

Mercury outboard part 858366T2 (PLATE), documented in 38 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T178500 THRU 0T59899911View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T599000 THRU 0T80099911View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T801000 THRU 1B41770111View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l0T980000 THRU 1B41770111View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T178500 THRU 0T59899911View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T599000 THRU 0T80099911View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T801000 THRU 1B41770111View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l0T599000 THRU 1B41770111View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B104549 THRU 1B42656011View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B75254611View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B53560811View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-3-0l1E000797 THRU 1E00258311View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T651945 THRU 0T81804211View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T818043 THRU 0T99797311View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E000797 THRU 1E00234111View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l0T997974 THRU 1E00304511View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l1E003046 THRU 1E05282411View
Mercury 2-STROKE-EFI200-3-0l0T750164 THRU 0T80099911View
Mercury 2-STROKE-EFI200-3-0l0T801000 THRU 1B41770111View
Mercury 2-STROKE-EFI200-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-EFI200-3-0l1B504989 THRU 2B52809611View
Mercury 2-STROKE-EFI225-3-0l0T409000 THRU 0T80099911View
Mercury 2-STROKE-EFI225-3-0l0T801000 THRU 1B41770111View
Mercury 2-STROKE-EFI225-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-EFI225-3-0l1B504989 THRU 2B52809611View
Mercury 2-STROKE-EFI225-3-0l-marathon0T801000 THRU 1B41770111View
Mercury 2-STROKE-EFI225-3-0l-seapro0T801000 THRU 1B41770111View
Mercury 2-STROKE-EFI250-3-0l0T409000 THRU 0T80099911View
Mercury 2-STROKE-EFI250-3-0l0T801000 THRU 1B41770111View
Mercury 2-STROKE-EFI250-3-0l1B417702 THRU 1B50498811View
Mercury 2-STROKE-EFI250-3-0l1B504989 THRU 2B52809611View
Mercury 2-STROKE-EFI250-l-3-0l0T861319 THRU 1B11889711View
Mercury 2-STROKE-EFI3-0l-marathon0T409000 THRU 0T80099911View
Mercury 2-STROKE-EFI3-0l-seapro0T409000 THRU 0T80099911View

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Appears in diagrams of these models

  • 200 HP 6 CYL (3.0L)
  • 225 HP 6 CYL (3.0L)
  • 200 (3.0L)
  • 225 (3.0L)
  • 250 (3.0L)
  • 250 HP XS 6 CYL (3.0L)
  • 200 HP DTS 6 CYL (3.0L)
  • 225 HP DTS 6 CYL (3.0L)
  • 225 HP Pro XS 6 CYL (3.0L)
  • JP (3.0L)
  • 225 (3.0L) MARATHON
  • 225 (3.0L) SEAPRO
  • 300X (3.0L) PRO MAX
  • 225 HP Sport XS 6 CYL (3.0L)
  • 250 L (3.0L)
  • 3.0L MARATHON
  • 3.0L SEAPRO