Mercury outboard spare part 859403 (PLUG). 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), 200 HP DTS 6 CYL (3.0L), 225 HP DTS 6 CYL (3.0L), 225 (3.0L), 225 (3.0L), 225 MARATHON (3.0L), 225 SEAPRO (3.0L), 250 HP Pro XS 6 CYL (3.0L), 225 (3.0L) MARATHON, 225 (3.0L) SEAPRO, 225 HP Pro XS 6 CYL (3.0L), 3.0L DSI (Diesel Spark Ignition), 200 EFI PRO MAX/SUPER MAG. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 859403 (PLUG), documented in 43 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB225-3-0l0G760300 THRU 0T40899947, 481View
Mercury 2-STROKE-CARB225-marathon-3-0l0G760300 THRU 0T40899947, 481View
Mercury 2-STROKE-CARB225-seapro-3-0l0G760300 THRU 0T40899947, 481View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G590000 THRU 0G76029921View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G760300 THRU 0G96049921View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G960500 THRU 0T17849921View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T178500 THRU 0T59899947, 481View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T599000 THRU 0T80099947, 481View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T801000 THRU 1B41770121View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l0T980000 THRU 1B41770121View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G590000 THRU 0G76029921View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G760300 THRU 0G96049921View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G960500 THRU 0T17849921View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T178500 THRU 0T59899947, 481View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T599000 THRU 0T80099947, 481View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T801000 THRU 1B41770121View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l0T599000 THRU 1B41770121View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B75254621View
Mercury 2-STROKE-DFI-OPTIMAX3-0l-dsi-diesel-spark-ignition1E052967 THRU 1E05419121View
Mercury 2-STROKE-EFI200-3-0l0T750164 THRU 0T80099921View
Mercury 2-STROKE-EFI200-3-0l0T801000 THRU 1B41770121View
Mercury 2-STROKE-EFI200-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-EFI225-3-0l0G760300 THRU 0T40899947, 481View
Mercury 2-STROKE-EFI225-3-0l0T409000 THRU 0T80099921View
Mercury 2-STROKE-EFI225-3-0l0T801000 THRU 1B41770121View
Mercury 2-STROKE-EFI225-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-EFI225-3-0l-marathon0T801000 THRU 1B41770121View
Mercury 2-STROKE-EFI225-3-0l-seapro0T801000 THRU 1B41770121View
Mercury 2-STROKE-EFI250-3-0l0G760300 THRU 0T40899947, 481View
Mercury 2-STROKE-EFI250-3-0l0T409000 THRU 0T80099921View
Mercury 2-STROKE-EFI250-3-0l0T801000 THRU 1B41770121View
Mercury 2-STROKE-EFI250-3-0l1B417702 THRU 1B50498821View
Mercury 2-STROKE-EFI3-0l-marathon0T409000 THRU 0T80099921View
Mercury 2-STROKE-EFI3-0l-seapro0T409000 THRU 0T80099921View
Mercury 2-STROKE-EFIv-150-hp0G760300 THRU 0G96049947, 481View
Mercury 2-STROKE-EFIv-150-hp0G960500 THRU 0T40899947, 481View
Mercury 2-STROKE-EFIv-150-hp-2-5l0T409000 THRU 0T80099947, 481View
Mercury 2-STROKE-EFIv-150-hp-2-5l0T801000 THRU 1B22699921View
Mercury 2-STROKE-EFIv-150-hp-2-5l1B227000 THRU 2B12104821View

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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)
  • 200 HP DTS 6 CYL (3.0L)
  • 225 HP DTS 6 CYL (3.0L)
  • 225 (3.0L)
  • 225 (3.0L)
  • 225 MARATHON (3.0L)
  • 225 SEAPRO (3.0L)
  • 250 HP Pro XS 6 CYL (3.0L)
  • 225 (3.0L) MARATHON
  • 225 (3.0L) SEAPRO
  • 225 HP Pro XS 6 CYL (3.0L)
  • 3.0L DSI (Diesel Spark Ignition)
  • 200 EFI PRO MAX/SUPER MAG