Mercury outboard spare part 8M0174560 (COVER Gearcase Housing). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 150R HP 3.4L V6, 200R HP 3.4L V6 Racing, 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, 200 HP 4.6L V8 Pro XS, 200 ROS HP 3.4L V6 15 Inch Midsection Racing, 200R HP 3.4L V6 15 Inch Midsection Racing, 225 HP 4.6L V8 Pro XS, 300 HP 4.6L V8 Pro XS, 300 HP 4.6L V8, 175 HP 3.4L V6, 200 HP 3.4L V6 SeaPro, 200 HP 3.4L V6, 225 HP 3.4L V6, 300R HP 4.6L V8 AMS Racing, 175 HP 3.4L V6 Pro XS, 200 HP Verado 6 CYL, 225 HP 4.6L V8 SeaPro, 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 Verado, 350 HP 5.7L V10 Verado. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 8M0174560 (COVER Gearcase Housing), documented in 33 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B547096 UP18, 191View
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B648748 UP18, 191View
Mercury 4-STROKE-EFI175-hp-3-4l-v62B529482 UP191View
Mercury 4-STROKE-EFI175-hp-3-4l-v6-pro-xs2B529482 UP191View
Mercury 4-STROKE-EFI200-hp-3-4l-v62B529482 UP191View
Mercury 4-STROKE-EFI200-hp-3-4l-v6-seapro2B529482 UP191View
Mercury 4-STROKE-EFI200-hp-4-6l-v8-pro-xs2B529482 UP18, 191View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0P520553 THRU 2B144122191View
Mercury 4-STROKE-EFI200-ros-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP18, 19, 381View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP18, 19, 381View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B547096 UP18, 191View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B648748 UP18, 191View
Mercury 4-STROKE-EFI225-hp-3-4l-v62B529482 UP191View
Mercury 4-STROKE-EFI225-hp-4-6l-v8-pro-xs2B529482 UP18, 191View
Mercury 4-STROKE-EFI225-hp-4-6l-v8-seapro2B529482 UP191View
Mercury 4-STROKE-EFI250-hp-4-6l-v82B529482 UP191View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-pro-xs2B529482 UP18, 191View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-seapro2B529482 UP191View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-verado2B529482 UP191View
Mercury 4-STROKE-EFI250r-hp-4-6l-v8-racing1E080500 UP191View
Mercury 4-STROKE-EFI300-hp-4-6l-v82B529482 UP191View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-ams-seapro2B529482 UP191View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms2B529482 UP191View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms-seapro2B529482 UP191View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-pro-xs2B529482 UP18, 191View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-verado2B529482 UP191View
Mercury 4-STROKE-EFI300-ros-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP18, 19, 381View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP18, 19, 381View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-ams-racing1E081459 UP191View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-racing1E080500 UP18, 191View
Mercury 4-STROKE-EFI350-hp-5-7l-v10-verado3B576449 UP141View
Mercury 4-STROKE-EFI400r-hp-5-7l-v10-racing3B272954 UP191View
Mercury 4-STROKE-EFI450r-hp-4-6l-v8-racing1E083006 THRU 1E099720191View

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Appears in diagrams of these models

  • 150R HP 3.4L V6
  • 200R HP 3.4L V6 Racing
  • 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
  • 200 HP 4.6L V8 Pro XS
  • 200 ROS HP 3.4L V6 15 Inch Midsection Racing
  • 200R HP 3.4L V6 15 Inch Midsection Racing
  • 225 HP 4.6L V8 Pro XS
  • 300 HP 4.6L V8 Pro XS
  • 300 HP 4.6L V8
  • 175 HP 3.4L V6
  • 200 HP 3.4L V6 SeaPro
  • 200 HP 3.4L V6
  • 225 HP 3.4L V6
  • 300R HP 4.6L V8 AMS Racing
  • 175 HP 3.4L V6 Pro XS
  • 200 HP Verado 6 CYL
  • 225 HP 4.6L V8 SeaPro
  • 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 Verado
  • 350 HP 5.7L V10 Verado