Mercury outboard spare part 81031 (GASKET). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30A, 20C (THRU PROP. EXHAUST), 25C (THRU PROP. EXHAUST), 40 (TWIN CARB) (W/OIL INJECTION), 25 K, 30 2 CYL (International), 40 LIGHTNING XR (International), 40B (THRU PROP. EXHAUST). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 81031 (GASKET), documented in 26 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 010112 UP211View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 250820 UP211View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 306543 UP211View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 550694 UP211View
Mercury 2-STROKE-CARB20c-thru-prop-exhaustARCHIVE CAT 96333211View
Mercury 2-STROKE-CARB25-k62CK 200454 THRU 00313272121View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 000101 THRU 023895221View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 250101 THRU 253861221View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 300101 THRU 318173221View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 550101 THRU 555959221View
Mercury 2-STROKE-CARB25c-thru-prop-exhaustARCHIVE CAT 12536221View
Mercury 2-STROKE-CARB30-2-cyl-international0N001875 THRU 0N055504121View
Mercury 2-STROKE-CARB30a689 000366 THRU 022058221View
Mercury 2-STROKE-CARB30a689 022059 THRU 689 230100 M221View
Mercury 2-STROKE-CARB30a689 100251 THRU 105324221View
Mercury 2-STROKE-CARB30a689 105325 THRU 689 530100 ML221View
Mercury 2-STROKE-CARB30a689 301911 THRU 321376221View
Mercury 2-STROKE-CARB30a689 321377 THRU 689 250100 E221View
Mercury 2-STROKE-CARB30a689 401216 THRU 411946221View
Mercury 2-STROKE-CARB30a689 411947 THRU 689 550100 EL221View
Mercury 2-STROKE-CARB40-lightning-xr-international0N000513 THRU 0N056164121View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 015001 THRU 09785866221View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 150001 THRU 09785866221View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 350001 THRU 09785866221View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 450001 THRU 09785866221View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustE 676 B100461 THRU B102785221View

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Appears in diagrams of these models

  • 30A
  • 20C (THRU PROP. EXHAUST)
  • 25C (THRU PROP. EXHAUST)
  • 40 (TWIN CARB) (W/OIL INJECTION)
  • 25 K
  • 30 2 CYL (International)
  • 40 LIGHTNING XR (International)
  • 40B (THRU PROP. EXHAUST)