Dimo Marine

851881BACKUP RING

Fits models / variants:

Mercury outboard spare part 851881 (BACKUP RING). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 50MH, 40 MXL MARATHON, 40 MXL SEAPRO. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 851881 (BACKUP RING), documented in 3 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB40-mxl-marathon0N037781 THRU 0N056164241View
Mercury 2-STROKE-CARB40-mxl-seapro0N037781 THRU 0N056164241View
Mercury 2-STROKE-CARB50mh0N056165 UP241View

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Appears in diagrams of these models

  • 50MH
  • 40 MXL MARATHON
  • 40 MXL SEAPRO