Mercury outboard spare part 8400M (HEAD CYLINDER). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.
Fits 6C HP, 8C HP, 8K HP, 6D HP. Select a model tag above to open the exploded diagram and confirm the position.
Mercury outboard part 8400M (HEAD CYLINDER), documented in 32 exploded diagram location(s), across the 2-STROKE-CARB series.
| Series | Model | Serial range | REF | Qty | Diagram |
|---|---|---|---|---|---|
| Mercury 2-STROKE-CARB | 25c-thru-prop-exhaust | 695 000101 THRU 023895 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 25c-thru-prop-exhaust | 695 250101 THRU 253861 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 25c-thru-prop-exhaust | 695 300101 THRU 318173 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 25c-thru-prop-exhaust | 695 550101 THRU 555959 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 25c-thru-prop-exhaust | ARCHIVE CAT 12536 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 000366 THRU 022058 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 022059 THRU 689 230100 M | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 100251 THRU 105324 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 105325 THRU 689 530100 ML | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 301911 THRU 321376 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 321377 THRU 689 250100 E | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 401216 THRU 411946 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 30a | 689 411947 THRU 689 550100 EL | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 40-twin-carb-w-oil-injection | 6E9 015001 THRU 09785866 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 40-twin-carb-w-oil-injection | 6E9 150001 THRU 09785866 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 40-twin-carb-w-oil-injection | 6E9 350001 THRU 09785866 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 40-twin-carb-w-oil-injection | 6E9 450001 THRU 09785866 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 40b-thru-prop-exhaust | E 676 B100461 THRU B102785 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 000317 THRU 010381 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 010382 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 300171 THRU 306502 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 306503 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6d-hp | 6H6 001302 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 6d-hp | 6H6 300406 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 027238 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 316712 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 7008786 THRU 0B367529 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8c-hp | ARCHIVE CAT 11660 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8k-hp | 680 001986 UP | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8k-hp | 680 348706 UP | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8k-hp | 680K 300302 UP | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 8k-hp | ARCHIVE CAT 94809 | 17 | 1 | View |
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