Mercury outboard spare part 843220001 (SPARK PLUG). 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, V-150 HP (2.5L), 2.5XS (2.5L). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 843220001 (SPARK PLUG), documented in 7 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX2-5xs-2-5l0T997974 THRU 1E000796236View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B104549 THRU 1B426560176View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B752546226View
Mercury 2-STROKE-DFI-OPTIMAXjp-3-0l0T997974 THRU 1E003045176View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T429939176View
Mercury 2-STROKE-EFIv-150-hp-2-5l0T801000 THRU 1B226999236View
Mercury 2-STROKE-EFIv-150-hp-2-5l1B227000 THRU 2B121048236View

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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
  • V-150 HP (2.5L)
  • 2.5XS (2.5L)