18031A1CAP ASSEMBLY Fuel

Fits models / variants:

Mercury outboard spare part 18031A1 (CAP ASSEMBLY Fuel). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30A, W40 (W/MARATHON). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 18031A1 (CAP ASSEMBLY Fuel), documented in 11 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB30a689 000366 THRU 02205821View
Mercury 2-STROKE-CARB30a689 022059 THRU 689 230100 M21View
Mercury 2-STROKE-CARB30a689 100251 THRU 10532421View
Mercury 2-STROKE-CARB30a689 105325 THRU 689 530100 ML21View
Mercury 2-STROKE-CARB30a689 301911 THRU 32137621View
Mercury 2-STROKE-CARB30a689 321377 THRU 689 250100 E21View
Mercury 2-STROKE-CARB30a689 401216 THRU 41194621View
Mercury 2-STROKE-CARB30a689 411947 THRU 689 550100 EL21View
Mercury 2-STROKE-CARB30aARCHIVE CAT 8111559021View
Mercury 2-STROKE-CARBw40-w-marathon6F6 005206 THRU 0036538521View
Mercury 2-STROKE-CARBw40-w-marathon6F6 308308 THRU 0036538521View

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Appears in diagrams of these models

  • 30A
  • W40 (W/MARATHON)