Mercury outboard spare part 850309001 (PLUG Stop). 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), 250 HP XS 6 CYL (3.0L), 225 (3.0L), 200 (3.0L), 200 HP DTS 6 CYL (3.0L), 225 HP DTS 6 CYL (3.0L), 225 HP Pro XS 6 CYL (3.0L), 225 (3.0L), 225 MARATHON (3.0L), 225 SEAPRO (3.0L), 200 HP Pro XS 6 CYL (3.0L), 250 HP Pro XS 6 CYL (3.0L), 250 HP Sport XS 6 CYL (2.5L), 300 HP XS 6 CYL (3.2L), JP (3.0L), 225 HP SPORT XS 6 CYL (2.5L), 225 HP Sport XS 6 CYL (3.0L), 225 HP XS 6 CYL (2.5L), 250 HP 6 CYL (3.0L), 3.0L DSI (Diesel Spark Ignition), 225 (3.0L) MARATHON, 225 (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 850309001 (PLUG Stop), documented in 68 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB225-3-0l0D280813 THRU 0G760299216View
Mercury 2-STROKE-CARB225-3-0l0G760300 THRU 0T408999216View
Mercury 2-STROKE-CARB225-marathon-3-0l0G245605 THRU 0G760299216View
Mercury 2-STROKE-CARB225-marathon-3-0l0G760300 THRU 0T408999216View
Mercury 2-STROKE-CARB225-seapro-3-0l0G245605 THRU 0G760299216View
Mercury 2-STROKE-CARB225-seapro-3-0l0G760300 THRU 0T408999216View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G590000 THRU 0G760299106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G760300 THRU 0G960499106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G960500 THRU 0T178499106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T801000 THRU 1B417701106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B504989 THRU 1B912785106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B912786 THRU 2B535571106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l0T980000 THRU 1B417701106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B504989 THRU 1B964735106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B504989 THRU 1B912785106View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B912786 THRU 2B535571106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G590000 THRU 0G760299106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G760300 THRU 0G960499106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G960500 THRU 0T178499106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T801000 THRU 1B417701106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B504989 THRU 2B535086106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l0T599000 THRU 1B417701106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B504989 THRU 1B964735106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B104549 THRU 1B426560106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-2-5l1E002584 THRU 1E050825106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-3-0l1E000797 THRU 1E002583106View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-xs-6-cyl-2-5l1E002584 THRU 1B792195106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-6-cyl-3-0l1B528615 THRU 2B535086106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B535608106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E002342 THRU 1E051823106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E051824 THRU 1E052994106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T651945 THRU 0T818042106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T818043 THRU 0T997973106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T997974 THRU 1E000796106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E000797 THRU 1E002341106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E002342 THRU 1E051113106View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E053158 THRU 1E053958106View
Mercury 2-STROKE-DFI-OPTIMAX3-0l-dsi-diesel-spark-ignition1E052967 THRU 1E054191106View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E001867 THRU 1E052057106View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E052058 THRU 1E053987106View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l0T997974 THRU 1E003045106View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l1E003046 THRU 1E052824106View
Mercury 2-STROKE-EFI200-3-0l0T801000 THRU 1B417701106View
Mercury 2-STROKE-EFI200-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-EFI200-3-0l1B504989 THRU 2B528096106View
Mercury 2-STROKE-EFI225-3-0l0G129222 THRU 0G760299216View
Mercury 2-STROKE-EFI225-3-0l0G760300 THRU 0T408999126View
Mercury 2-STROKE-EFI225-3-0l0T409000 THRU 0T800999216View
Mercury 2-STROKE-EFI225-3-0l0T801000 THRU 1B417701106View
Mercury 2-STROKE-EFI225-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-EFI225-3-0l1B504989 THRU 2B528096106View
Mercury 2-STROKE-EFI225-3-0l-marathon0T801000 THRU 1B417701106View
Mercury 2-STROKE-EFI225-3-0l-seapro0T801000 THRU 1B417701106View
Mercury 2-STROKE-EFI250-3-0l0G129222 THRU 0G760299216View
Mercury 2-STROKE-EFI250-3-0l0G760300 THRU 0T408999126View
Mercury 2-STROKE-EFI250-3-0l0T409000 THRU 0T800999216View
Mercury 2-STROKE-EFI250-3-0l0T801000 THRU 1B417701106View
Mercury 2-STROKE-EFI250-3-0l1B417702 THRU 1B504988106View
Mercury 2-STROKE-EFI250-3-0l1B504989 THRU 2B528096106View
Mercury 2-STROKE-EFI250-l-3-0l0T861319 THRU 1B118897106View
Mercury 2-STROKE-EFI250xb-3-0l0G980600 THRU 0T800999216View
Mercury 2-STROKE-EFI300-3-0l-promax0G610221 THRU 0T105297106View
Mercury 2-STROKE-EFI300-3-0l-supermagnum0G610221 THRU 0T105297106View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T429939106View

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Appears in diagrams of these models

  • 200 HP 6 CYL (3.0L)
  • 225 HP 6 CYL (3.0L)
  • 250 HP XS 6 CYL (3.0L)
  • 225 (3.0L)
  • 200 (3.0L)
  • 200 HP DTS 6 CYL (3.0L)
  • 225 HP DTS 6 CYL (3.0L)
  • 225 HP Pro XS 6 CYL (3.0L)
  • 225 (3.0L)
  • 225 MARATHON (3.0L)
  • 225 SEAPRO (3.0L)
  • 200 HP Pro XS 6 CYL (3.0L)
  • 250 HP Pro XS 6 CYL (3.0L)
  • 250 HP Sport XS 6 CYL (2.5L)
  • 300 HP XS 6 CYL (3.2L)
  • JP (3.0L)
  • 225 HP SPORT XS 6 CYL (2.5L)
  • 225 HP Sport XS 6 CYL (3.0L)
  • 225 HP XS 6 CYL (2.5L)
  • 250 HP 6 CYL (3.0L)
  • 3.0L DSI (Diesel Spark Ignition)
  • 225 (3.0L) MARATHON
  • 225 (3.0L) SEAPRO