Mercury outboard spare part 81767M (NUT). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30A, 20C (THRU PROP. EXHAUST), 25C (THRU PROP. EXHAUST), 40B (THRU PROP. EXHAUST), 40C (TWIN CARB) (W/AUTO-BLEND), 40 (TWIN CARB) (W/OIL INJECTION), 40C (TWIN CARB), 60 2 CYL, K 40 HP, 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 81767M (NUT), documented in 35 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 010112 UP191View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 250820 UP191View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 306543 UP191View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 550694 UP191View
Mercury 2-STROKE-CARB20c-thru-prop-exhaustARCHIVE CAT 96333191View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 000101 THRU 023895191View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 250101 THRU 253861191View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 300101 THRU 318173191View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 550101 THRU 555959191View
Mercury 2-STROKE-CARB25c-thru-prop-exhaustARCHIVE CAT 12536191View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 015001 THRU 0978586619, 251View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 150001 THRU 0978586619, 251View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 350001 THRU 0978586619, 251View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 450001 THRU 0978586619, 251View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustARCHIVE CAT 94535531View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustE 676 B100461 THRU B102785531View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustEL 676 B400420 THRU B405250531View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustM 676 B000106 THRU B002780531View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustML 676 B300101 THRU B302425531View
Mercury 2-STROKE-CARB40c-twin-carb6E9 100101 THRU 6E9 105013 E251View
Mercury 2-STROKE-CARB40c-twin-carb6E9 300126 THRU 6E9 309343 ML251View
Mercury 2-STROKE-CARB40c-twin-carb6E9 400231 THRU 6E9 423162 EL251View
Mercury 2-STROKE-CARB40c-twin-carb-w-auto-blend6E9 105014 THRU 6E9 150000241View
Mercury 2-STROKE-CARB40c-twin-carb-w-auto-blend6E9 309344 THRU 350000241View
Mercury 2-STROKE-CARB40c-twin-carb-w-auto-blend6E9 423163 THRU 450000241View
Mercury 2-STROKE-CARB40c-twin-carb-w-auto-blend6E9 500101 THRU 00503940241View
Mercury 2-STROKE-CARB60-2-cylARCHIVE CAT 92660531View
Mercury 2-STROKE-CARB60-2-cylARCHIVE CAT 97669531View
Mercury 2-STROKE-CARB60-2-cylE 675 00101 THRU E 675 001170531View
Mercury 2-STROKE-CARB60-2-cylEL 675 30101 THRU EL 675 304180531View
Mercury 2-STROKE-CARBk-40-hp6F5 000711 THRU 6F5325148181View
Mercury 2-STROKE-CARBk-40-hp6F5 301827 THRU 6F5325148181View
Mercury 2-STROKE-CARBk-40-hp6F5K 302372 THRU 6F5325148181View
Mercury 2-STROKE-CARBw40-w-marathon6F6 005206 THRU 00365385161View
Mercury 2-STROKE-CARBw40-w-marathon6F6 308308 THRU 00365385161View

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Appears in diagrams of these models

  • 30A
  • 20C (THRU PROP. EXHAUST)
  • 25C (THRU PROP. EXHAUST)
  • 40B (THRU PROP. EXHAUST)
  • 40C (TWIN CARB) (W/AUTO-BLEND)
  • 40 (TWIN CARB) (W/OIL INJECTION)
  • 40C (TWIN CARB)
  • 60 2 CYL
  • K 40 HP
  • W40 (W/MARATHON)