Mercury outboard spare part 91903 (SCREW (.437-14 x 1.750)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.
Fits 200 HP XS 6 CYL (2.5L) ROS, 200 HP XS SST 6 CYL (2.5L). Select a model tag above to open the exploded diagram and confirm the position.
Mercury outboard part 91903 (SCREW (.437-14 x 1.750)), documented in 17 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.
| Series | Model | Serial range | REF | Qty | Diagram |
|---|---|---|---|---|---|
| Mercury 2-STROKE-CARB | 6-hp | 0A197112 THRU 0D280999 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 000317 THRU 010381 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 010382 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 300171 THRU 306502 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6c-hp | 6H8 306503 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6d-hp | 6H6 001302 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 6d-hp | 6H6 300406 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8-hp | 0A197112 THRU 0D280999 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 027238 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 316712 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8c-hp | 6G1 7008786 THRU 0B367529 | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8k-hp | 680 348706 UP | 36 | 3 | View |
| Mercury 2-STROKE-CARB | 8k-hp | 680K 300302 UP | 36 | 3 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-xs-6-cyl-2-5l-ros | 1E050852 THRU 1E053876 | 26 | 3 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-xs-sst-6-cyl-2-5l | 1E050629 THRU 1E053875 | 26 | 3 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-pro-xs-6-cyl-3-0l | 1B752547 THRU 2B535608 | 40 | 3 | View |
| Mercury 2-STROKE-EFI | 225x-efi-promax | 0T430254 THRU 0T819605 | 36 | 3 | View |
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