Mercury outboard spare part 134391 (NUT (.4375-20)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 EFI PRO MAX/SUPER MAG, 8 HP, 6 HP, 150 HP PRO MAX/SUPER MAG, 225 EFI PRO MAX/SUPER MAG, 6C HP, 150/200 HP PRO MAX/SUPER MAG, 300X (3.0L) PRO MAX, 8C HP, 6D HP, 8K HP. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 134391 (NUT (.4375-20)), documented in 18 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB6-hp0A197112 THRU 0D280999393View
Mercury 2-STROKE-CARB6c-hp6H8 000317 THRU 010381393View
Mercury 2-STROKE-CARB6c-hp6H8 010382 THRU 0B367529393View
Mercury 2-STROKE-CARB6c-hp6H8 300171 THRU 306502393View
Mercury 2-STROKE-CARB6c-hp6H8 306503 THRU 0B367529393View
Mercury 2-STROKE-CARB6d-hp6H6 001302 THRU 0B367529393View
Mercury 2-STROKE-CARB6d-hp6H6 300406 THRU 0B367529393View
Mercury 2-STROKE-CARB8-hp0A197112 THRU 0D280999393View
Mercury 2-STROKE-CARB8c-hp6G1 027238 THRU 0B367529393View
Mercury 2-STROKE-CARB8c-hp6G1 316712 THRU 0B367529393View
Mercury 2-STROKE-CARB8c-hp6G1 7008786 THRU 0B367529393View
Mercury 2-STROKE-CARB8k-hp680 348706 UP393View
Mercury 2-STROKE-CARB8k-hp680K 300302 UP393View
Mercury 2-STROKE-EFI150-200-hp-pro-max-super-mag0G610050 THRU 0G85699972, 81, 86, 892View
Mercury 2-STROKE-EFI150-hp-pro-max-super-mag0D935000 THRU 0G61004972, 81, 86, 892View
Mercury 2-STROKE-EFI200-efi-pro-max-super-mag0D935000 THRU 0G61007972, 81, 86, 892View
Mercury 2-STROKE-EFI200-efi-pro-max-super-mag0G857000 THRU 0G85815072, 812View
Mercury 2-STROKE-EFI300x-3-0l-pro-max0T235084 THRU 0T42993985, 862View

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Appears in diagrams of these models

  • 200 EFI PRO MAX/SUPER MAG
  • 8 HP
  • 6 HP
  • 150 HP PRO MAX/SUPER MAG
  • 225 EFI PRO MAX/SUPER MAG
  • 6C HP
  • 150/200 HP PRO MAX/SUPER MAG
  • 300X (3.0L) PRO MAX
  • 8C HP
  • 6D HP
  • 8K HP