Mercury outboard spare part 56374 (NUT (.250-20)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.
Fits V-175, V-200, XR-6 / MAGNUM III, XR-4 / MAGNUM II, V-200, V-150, V-175XRI, V-200XRI. Select a model tag above to open the exploded diagram and confirm the position.
Mercury outboard part 56374 (NUT (.250-20)), documented in 88 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI, FORCE series.
| Series | Model | Serial range | REF | Qty | Diagram |
|---|---|---|---|---|---|
| Mercury 2-STROKE-CARB | 15-hp-marathon-xd | 9927000 THRU 0P016999 | 7 | 2 | View |
| Mercury 2-STROKE-CARB | 15-hp-seapro-xd | 9927000 THRU 0P016999 | 7 | 2 | View |
| Mercury 2-STROKE-CARB | 20-jet | 0G044027 THRU 0G760299 | 7 | 2 | View |
| Mercury 2-STROKE-CARB | 20-jet | 9807909 THRU 0P016999 | 7 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 0P325500 THRU 1B342467 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 0T980000 THRU 0T999999 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 1B000001 THRU 1B351069 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 5705532 THRU 6416712 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 7166928 THRU 7207857 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 8073158 THRU 9415100 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | 9315316 THRU 9378115 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | ARCHIVE CAT 43465 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 25-2-cyl | ARCHIVE CAT 99917 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 0B110789 THRU 0B370271 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 5531630 THRU 0B110788 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 7143688 THRU 0A719280 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 8063985 THRU 0B110788 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 9248006 THRU 9466691 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 45-450-4-cyl | 9466692 THRU 09522535 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | 5206550 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | 7125388 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | 8057545 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | 9217756 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | ARCHIVE CAT 52325 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | ARCHIVE CAT 62423 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | ARCHIVE CAT 67175 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 7-5-75-hp | ARCHIVE CAT 79171 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | 5579017 THRU 6428680 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | 7145938 THRU 7208332 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | 8065065 THRU 8085061 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | 9255131 THRU 9385910 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | ARCHIVE CAT 75508 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 70-700-3-cyl | ARCHIVE CAT 84730 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | 5206550 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | 7127388 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | 8057545 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | 9217756 THRU 0A197113 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | ARCHIVE CAT 31945 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | ARCHIVE CAT 39562 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | ARCHIVE CAT 59344 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | ARCHIVE CAT 62430 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | 9-8-hp-merc-110 | ARCHIVE CAT 67136 | 18 | 2 | View |
| Mercury 2-STROKE-CARB | v-135 | 0A904646 THRU 0C100860 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0C100861 THRU 0C239552 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0C239553 THRU 0D081999 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0D082000 THRU 0G303045 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0G303046 THRU 0G760299 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0G760300 THRU 0G960499 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-135 | 0G960500 THRU 0T178499 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-140-international | 0T178500 THRU 1B226999 | 47 | 13 | View |
| Mercury 2-STROKE-CARB | v-150 | 0A904646 THRU 0C100860 | 14 | 8 | View |
| Mercury 2-STROKE-CARB | v-175 | 0C100861 THRU 0C239552 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 0C239553 THRU 0D081999 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 0D082000 THRU 0G303045 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 0G303046 THRU 0G760299 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 0G760300 THRU 0G960499 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 4301235 THRU 0C100860 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-175 | 8058870 THRU 0B384939 | 10, 47 | 3, 13 | View |
| Mercury 2-STROKE-CARB | v-200 | 0C100861 THRU 0C291519 | 10 | 3 | View |
| Mercury 2-STROKE-CARB | xr-4-magnum-ii | 0C100861 THRU 0C239552 | 10 | 3 | View |
| Mercury 2-STROKE-CARB | xr-4-magnum-ii | 0C239553 THRU 0D081999 | 10 | 3 | View |
| Mercury 2-STROKE-CARB | xr-6-magnum-iii | 0G303046 THRU 0G760299 | 10 | 3 | View |
| Mercury 2-STROKE-CARB | xr-6-magnum-iii | 0G760300 THRU 0G960499 | 10 | 3 | View |
| Mercury 2-STROKE-CARB | xr-6-magnum-iii | 0G960500 THRU 1B226999 | 10 | 3 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 0G760300 THRU 0G960499 | 17 | 6 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 0G960500 THRU 0T178499 | 17 | 6 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 0T178500 THRU 0T800999 | 17 | 6 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 0T801000 THRU 1B226999 | 17 | 6 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 1B227000 THRU 1B417701 | 17 | 6 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 135-hp-v6-cyl-2-5l | 1B417702 THRU 1B737495 | 17 | 6 | View |
| Mercury 2-STROKE-EFI | 300-3-0l-promax | 0G610221 THRU 0T105297 | 15, 28, 35, 36 | 2, 4 | View |
| Mercury 2-STROKE-EFI | 300-3-0l-supermagnum | 0G610221 THRU 0T105297 | 15, 28, 35, 36 | 2, 4 | View |
| Mercury 2-STROKE-EFI | s3000 | 0D181027 THRU 0T105373 | 25 | 1 | View |
| Mercury 2-STROKE-EFI | v-175-mag | 0D082000 THRU 0G303045 | 15, 31 | 2, 4 | View |
| Mercury 2-STROKE-EFI | v-175xri | 0D000750 THRU 0D081999 | 10 | 3 | View |
| Mercury 2-STROKE-EFI | v-200 | 0C100861 THRU 0C999999 | 10 | 3 | View |
| Mercury 2-STROKE-EFI | v-200-2-5l | 0T801000 THRU 1B226999 | 15, 31 | 2, 4 | View |
| Mercury 2-STROKE-EFI | v-200xri | 0C291520 THRU 0D081999 | 10 | 3 | View |
| Mercury FORCE | 120-h-p-1996 | 0E138600 THRU 0E202999 | 5 | 4 | View |
| Mercury FORCE | 120-h-p-1997 | 0E203000 THRU 0E287999 | 5 | 4 | View |
Another 8 location(s) are recorded but not listed here. Use the model links above to open the matching diagram.
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