Mercury outboard spare part 8M0021330 (PLUG (M18)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30 HP EFI 3 CYL, 35 HP EFI Jet 4 CYL, 40 HP EFI 3 CYL, 40 HP EFI 4 CYL, 40 HP EFI Jet 4 CYL, 40 HP EFI SeaPro 4 CYL, 50 HP EFI 4 CYL, 60 HP EFI 4 CYL, 60 HP EFI SeaPro 4 CYL, 60R HP EFI Racing, 60 HP 1.0L EFI L4 APX, 65 HP EFI Jet, 75 HP EFI. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 8M0021330 (PLUG (M18)), documented in 13 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI30-hp-efi-3-cyl1C456300 UP19, 221View
Mercury 4-STROKE-EFI35-hp-efi-jet-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI40-hp-efi-3-cyl1C456300 UP19, 221View
Mercury 4-STROKE-EFI40-hp-efi-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI40-hp-efi-jet-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI40-hp-efi-seapro-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI50-hp-efi-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI60-hp-1-0l-efi-l4-apx1C782688 UP221View
Mercury 4-STROKE-EFI60-hp-efi-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI60-hp-efi-seapro-4-cyl1C453840 UP19, 221View
Mercury 4-STROKE-EFI60r-hp-efi-racing1C615064 UP19, 221View
Mercury 4-STROKE-EFI65-hp-efi-jet2B095049 UP221View
Mercury 4-STROKE-EFI75-hp-efi1B366823 THRU 2B094995221View

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Appears in diagrams of these models

  • 30 HP EFI 3 CYL
  • 35 HP EFI Jet 4 CYL
  • 40 HP EFI 3 CYL
  • 40 HP EFI 4 CYL
  • 40 HP EFI Jet 4 CYL
  • 40 HP EFI SeaPro 4 CYL
  • 50 HP EFI 4 CYL
  • 60 HP EFI 4 CYL
  • 60 HP EFI SeaPro 4 CYL
  • 60R HP EFI Racing
  • 60 HP 1.0L EFI L4 APX
  • 65 HP EFI Jet
  • 75 HP EFI