8M0187121SCREW Hex Flange M8

Mercury outboard spare part 8M0187121 (SCREW Hex Flange M8). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 250 4.6L V8 APX, 500R 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 8M0187121 (SCREW Hex Flange M8), documented in 1 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI250-4-6l-v8-apx1E054548 UP261View

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Appears in diagrams of these models

  • 250 4.6L V8 APX
  • 500R HP 4.6L V8 Racing