Mercury outboard spare part 803773 (SHAFT Steering). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 15 HP MARATHON, 15 HP 2 CYL (International), 18 HP 2 CYL (International), 9.9 2 CYL (International). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 803773 (SHAFT Steering), documented in 12 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB15-hp-2-cyl-international0N001590 THRU 0N05528411View
Mercury 2-STROKE-CARB15-hp-2-cyl-international0N055285 UP11View
Mercury 2-STROKE-CARB15-hp-marathon0G438000 THRU 0G76029911View
Mercury 2-STROKE-CARB15-hp-marathon0G760300 THRU 0T97999911View
Mercury 2-STROKE-CARB15-hp-marathon0P017000 THRU 0P32549911View
Mercury 2-STROKE-CARB15-hp-marathon0P325500 THRU 0P41144011View
Mercury 2-STROKE-CARB15-hp-marathon0T980000 THRU 0T99999911View
Mercury 2-STROKE-CARB15-hp-marathon1B000001 THRU 1B20743711View
Mercury 2-STROKE-CARB15-hp-marathon9927000 THRU 0P01699911View
Mercury 2-STROKE-CARB18-hp-2-cyl-international0N001590 THRU 0N05528411View
Mercury 2-STROKE-CARB18-hp-2-cyl-international0N055285 UP11View
Mercury 2-STROKE-CARB9-9-2-cyl-international0N059858 UP11View

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Appears in diagrams of these models

  • 15 HP MARATHON
  • 15 HP 2 CYL (International)
  • 18 HP 2 CYL (International)
  • 9.9 2 CYL (International)