Mercury outboard spare part 8M0056639 (RING Retainer). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 200 HP Verado 6 CYL, 225 HP Verado 6 CYL, 250 HP Verado 6 CYL, 275 HP Verado 6 CYL, 300 HP Verado 6 CYL, 250R HP 4.6L V8 Racing, 300R HP 4.6L V8 Racing, 350 HP 2.6L L6 Pro Verado, 350 HP 2.6L L6 Verado, 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 AMS Racing, 200 ROS HP 3.4L V6 15 Inch Midsection Racing, 200R HP 3.4L V6 15 Inch Midsection Racing. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 8M0056639 (RING Retainer), documented in 33 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B547096 UP28, 291View
Mercury 4-STROKE-EFI150r-hp-3-4l-v63B648748 UP281View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl0P520553 THRU 2B144122301View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl1B517434 THRU 2B144122301View
Mercury 4-STROKE-EFI200-hp-verado-6-cyl2B144123 THRU 2B57893530, 311View
Mercury 4-STROKE-EFI200-ros-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP281View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-15-inch-midsection-racing1E054618 UP281View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B547096 UP28, 291View
Mercury 4-STROKE-EFI200r-hp-3-4l-v6-racing3B648748 UP281View
Mercury 4-STROKE-EFI225-hp-verado-6-cyl0P520553 THRU 2B144122301View
Mercury 4-STROKE-EFI225-hp-verado-6-cyl1B517434 THRU 2B144122301View
Mercury 4-STROKE-EFI225-hp-verado-6-cyl2B144123 THRU 2B57893530, 311View
Mercury 4-STROKE-EFI250-hp-verado-6-cyl0P520553 THRU 2B144122301View
Mercury 4-STROKE-EFI250-hp-verado-6-cyl1B517434 THRU 2B144122301View
Mercury 4-STROKE-EFI250-hp-verado-6-cyl2B144123 THRU 2B578935311View
Mercury 4-STROKE-EFI250r-hp-4-6l-v8-racing1E080500 UP291View
Mercury 4-STROKE-EFI275-hp-verado-6-cyl0P520553 THRU 2B144122301View
Mercury 4-STROKE-EFI275-hp-verado-6-cyl1B517434 THRU 2B144122301View
Mercury 4-STROKE-EFI275-hp-verado-6-cyl2B144123 THRU 2B57893530, 311View
Mercury 4-STROKE-EFI300-hp-verado-6-cyl0P520553 THRU 2B144122301View
Mercury 4-STROKE-EFI300-hp-verado-6-cyl1B517434 THRU 2B144122301View
Mercury 4-STROKE-EFI300-hp-verado-6-cyl2B144123 THRU 2B57893530, 311View
Mercury 4-STROKE-EFI300-ros-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP27, 281View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP27, 281View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-ams-racing1E081459 UP291View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-racing1E080500 UP291View
Mercury 4-STROKE-EFI350-hp-2-6l-l6-pro-verado2B141124 THRU 3B34296229, 301View
Mercury 4-STROKE-EFI350-hp-2-6l-l6-verado2B141617 THRU 3B34296229, 301View
Mercury 4-STROKE-EFI350-hp-sci-verado1B716557 THRU 2B143542301View
Mercury 4-STROKE-EFI400-hp-2-6l-l6-verado2B618256 THRU 3B34296229, 301View
Mercury 4-STROKE-EFI400r-hp-2-6l-l6-racing2B141124 THRU 3B34296229, 301View
Mercury 4-STROKE-EFI400r-hp-5-7l-v10-racing3B272954 UP291View
Mercury 4-STROKE-EFI450r-hp-4-6l-v8-racing1E083006 THRU 1E099720291View

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Appears in diagrams of these models

  • 200 HP Verado 6 CYL
  • 225 HP Verado 6 CYL
  • 250 HP Verado 6 CYL
  • 275 HP Verado 6 CYL
  • 300 HP Verado 6 CYL
  • 250R HP 4.6L V8 Racing
  • 300R HP 4.6L V8 Racing
  • 350 HP 2.6L L6 Pro Verado
  • 350 HP 2.6L L6 Verado
  • 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 AMS Racing
  • 200 ROS HP 3.4L V6 15 Inch Midsection Racing
  • 200R HP 3.4L V6 15 Inch Midsection Racing