Mercury outboard spare part 8M0199860 (BEARING CARRIER ASSEMBLY Counter Rotation (1.60 Ratio)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 250R HP 4.6L V8 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, 300R HP 4.6L V8 Racing, 400R HP 5.7L V10 Racing, 450R 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 8M0199860 (BEARING CARRIER ASSEMBLY Counter Rotation (1.60 Ratio)), documented in 7 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI250r-hp-4-6l-v8-racing1E080500 UP371View
Mercury 4-STROKE-EFI300-ros-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP271View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP271View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-ams-racing1E081459 UP371View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-racing1E080500 UP371View
Mercury 4-STROKE-EFI400r-hp-5-7l-v10-racing3B272954 UP191View
Mercury 4-STROKE-EFI450r-hp-4-6l-v8-racing1E083006 THRU 1E099720371View

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Appears in diagrams of these models

  • 250R HP 4.6L V8 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
  • 300R HP 4.6L V8 Racing
  • 400R HP 5.7L V10 Racing
  • 450R HP 4.6L V8 Racing