Mercury outboard spare part 8M0022161 (STUD (M8 x 71.5)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 HP Verado 6 CYL, 175 HP EFI Verado 4 CYL, 150R HP 3.4L V6, 200R HP 3.4L V6 Racing, 175 HP 3.4L V6 Pro XS, 175 HP 3.4L V6, 200 HP 3.4L V6 APX, 200 HP 3.4L V6 SeaPro, 200 HP 3.4L V6, 200 HP 4.6L V8 Pro XS, 200 HP Verado 4 CYL, 200 ROS HP 3.4L V6 15 Inch Midsection Racing, 200R HP 3.4L V6 15 Inch Midsection Racing, 225 HP 3.4L V6, 225 HP 4.6L V8 Pro XS, 225 HP 4.6L V8 SeaPro, 250 4.6L V8 APX, 250 HP 4.6L V8 Pro XS, 250 HP 4.6L V8 SeaPro, 250 HP 4.6L V8 Verado, 250 HP 4.6L V8, 250R HP 4.6L V8 Racing, 300 HP 4.6L V8 AMS SeaPro, 300 HP 4.6L V8 CMS SeaPro, 300 HP 4.6L V8 CMS, 300 HP 4.6L V8 Pro XS, 300 HP 4.6L V8 Verado, 300 HP 4.6L V8, 300 ROS HP 4.6L V8 15 Inch Midsection Racing, 300R HP 4.6L V8 15 Inch Midsection Racing, 300R HP 4.6L V8 Racing. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 8M0022161 (STUD (M8 x 71.5)), documented in 46 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B547096 UP3, 84View
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B648748 UP3, 84View
Mercury 4-STROKE-EFI175-hp-3-4l-v62B529482 UP3, 31, 84, 2View
Mercury 4-STROKE-EFI175-hp-3-4l-v6-pro-xs2B529482 UP3, 31, 84, 2View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl0P419487 THRU 0P464487312View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl0P464488 THRU 0P514868312View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl0P514869 THRU 0P593020312View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl1B227000 THRU 1B381711312View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl1B381712 THRU 1B517158312View
Mercury 4-STROKE-EFI175-hp-efi-verado-4-cyl1B517159 THRU 2B576734312View
Mercury 4-STROKE-EFI200-hp-3-4l-v62B529482 UP3, 84View
Mercury 4-STROKE-EFI200-hp-3-4l-v6-apx1E054353 UP3, 84View
Mercury 4-STROKE-EFI200-hp-3-4l-v6-seapro2B529482 UP3, 84View
Mercury 4-STROKE-EFI200-hp-4-6l-v8-pro-xs2B529482 UP3, 94View
Mercury 4-STROKE-EFI200-hp-verado-4-cyl0P514869 THRU 0P593020312View
Mercury 4-STROKE-EFI200-hp-verado-4-cyl1B517159 THRU 2B576734312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0P409357 THRU 0P464487312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0P464488 THRU 0P520552312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0P520553 THRU 2B144122312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0T980000 THRU 1B226999312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl1B227000 THRU 1B381711312View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl1B381712 THRU 1B517433312View
Mercury 4-STROKE-EFI200-ros-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP3, 74View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP3, 74View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B547096 UP3, 84View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B648748 UP3, 84View
Mercury 4-STROKE-EFI225-hp-3-4l-v62B529482 UP3, 84View
Mercury 4-STROKE-EFI225-hp-4-6l-v8-pro-xs2B529482 UP94View
Mercury 4-STROKE-EFI225-hp-4-6l-v8-seapro2B529482 UP3, 94View
Mercury 4-STROKE-EFI250-4-6l-v8-apx1E054548 UP114View
Mercury 4-STROKE-EFI250-hp-4-6l-v82B529482 UP94View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-pro-xs2B529482 UP94View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-seapro2B529482 UP94View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-verado2B529482 UP94View
Mercury 4-STROKE-EFI250r-hp-4-6l-v8-racing1E080500 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v82B529482 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-ams-seapro2B529482 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms2B529482 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms-seapro2B529482 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-pro-xs2B529482 UP94View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-verado2B529482 UP94View
Mercury 4-STROKE-EFI300-ros-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP74View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP74View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-racing1E080500 UP94View
Mercury 4-STROKE-EFI450r-hp-4-6l-v8-racing1E083006 THRU 1E09972094View
Mercury 4-STROKE-EFI500r-hp-4-6l-v8-racing1E099432 UP124View

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Appears in diagrams of these models

  • 200 HP Verado 6 CYL
  • 175 HP EFI Verado 4 CYL
  • 150R HP 3.4L V6
  • 200R HP 3.4L V6 Racing
  • 175 HP 3.4L V6 Pro XS
  • 175 HP 3.4L V6
  • 200 HP 3.4L V6 APX
  • 200 HP 3.4L V6 SeaPro
  • 200 HP 3.4L V6
  • 200 HP 4.6L V8 Pro XS
  • 200 HP Verado 4 CYL
  • 200 ROS HP 3.4L V6 15 Inch Midsection Racing
  • 200R HP 3.4L V6 15 Inch Midsection Racing
  • 225 HP 3.4L V6
  • 225 HP 4.6L V8 Pro XS
  • 225 HP 4.6L V8 SeaPro
  • 250 4.6L V8 APX
  • 250 HP 4.6L V8 Pro XS
  • 250 HP 4.6L V8 SeaPro
  • 250 HP 4.6L V8 Verado
  • 250 HP 4.6L V8
  • 250R HP 4.6L V8 Racing
  • 300 HP 4.6L V8 AMS SeaPro
  • 300 HP 4.6L V8 CMS SeaPro
  • 300 HP 4.6L V8 CMS
  • 300 HP 4.6L V8 Pro XS
  • 300 HP 4.6L V8 Verado
  • 300 HP 4.6L V8
  • 300 ROS HP 4.6L V8 15 Inch Midsection Racing
  • 300R HP 4.6L V8 15 Inch Midsection Racing
  • 300R HP 4.6L V8 Racing