Mercury outboard spare part 843118 (STUD (.250-20 x 3.45)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 250 (3.0L), 300 (3.0L) ProMax, 300 (3.0L) SuperMagnum, 200 HP XS 6 CYL (2.5L) ROS, 200 HP XS SST 6 CYL (2.5L), 225X EFI PROMAX. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 843118 (STUD (.250-20 x 3.45)), documented in 8 exploded diagram location(s), across the 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l-ros1E050852 THRU 1E053876302View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-sst-6-cyl-2-5l1E050629 THRU 1E053875302View
Mercury 2-STROKE-EFI225x-efi-promax0T430254 THRU 0T819605302View
Mercury 2-STROKE-EFI250-3-0l0G129222 THRU 0G760299302View
Mercury 2-STROKE-EFI250-3-0l0G760300 THRU 0T408999302View
Mercury 2-STROKE-EFI250-3-0l0T409000 THRU 0T800999302View
Mercury 2-STROKE-EFI300-3-0l-promax0G610221 THRU 0T105297312View
Mercury 2-STROKE-EFI300-3-0l-supermagnum0G610221 THRU 0T105297312View

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Appears in diagrams of these models

  • 250 (3.0L)
  • 300 (3.0L) ProMax
  • 300 (3.0L) SuperMagnum
  • 200 HP XS 6 CYL (2.5L) ROS
  • 200 HP XS SST 6 CYL (2.5L)
  • 225X EFI PROMAX