This page features a comprehensive chart of Mercury & Mariner outboard gearcase seal kits designed to help you identify the right fit by horsepower and serial number. Each listing includes OEM part numbers, fitment details, and clear pricing—making it easier for marine enthusiasts and professionals to select the correct seal kit for gearcase maintenance and repair.
| Mercury & Mariner Outboard Seal Kits | ||
| HP | SERIAL # | Part # |
| 4 (1-CYL) | 5595532-A809600 | 18-2628 |
| 4.5 (1-CYL) | 4107220 & UP | 18-2628 |
| 6 | A197112 & UP | 18-2628 |
| 7.5 | 4851693 & UP | 18-2697-1 |
| 8 | A197112 & UP | 18-2628 |
| 8 (Bodensee 4-Stroke) | G760300-T178399 | 18-2697-1 |
| 9.8 | 4839254 & UP | 18-2628 |
| 9.9 | A197112 & UP | 18-2697-1 |
| 9.9 (4-Stroke Non-Bigfoot) | G760300 & UP | 18-2697-1 |
| 9.9 (4-Stroke Bigfoot) | G760300 & UP | 18-2624 |
| SeaPro / XR10 | D038000 & UP | 18-2697-1 |
| 15 | A197112 & UP | 18-2697-1 |
| 15 (4-Stroke Non-Bigfoot) | G760300 & UP | 18-2697-1 |
| 15 (4-Stroke Bigfoot) | G760300 & UP | 18-2624 |
| Magnum | ALL | 18-2624 |
| Magnum 15XD | ALL | 18-2624 |
| Super 15 | ALL | 18-2624 |
| 18 | 5837437-64443972 | 18-2629 |
| 18 | 6443973 & UP | 18-2624 |
| 20 | 4709593-6443972 | 18-2627 |
| 20 | 6443973 & UP | 18-2624 |
| 25 | 5705532-6443972 | 18-2629 |
| 25 | 6443973 & UP | 18-2624 |
| 25 (Lightning 3-CYL) | E268781 & UP | 18-2624 |
| 30 (4-Stroke/3-CYL/BigFoot) | G760300 & UP | 446-135 |
| 40 (4-Stroke/3-CYL/BigFoot) | G760300 & UP | 446-135 |
| 50 (3-CYL) | D000750-G589999 | 18-2635 |
| 50 (4-Stroke/3-CYL/BigFoot) | G760300 & UP | 446-135 |
| 50 (4-Stroke/BigFoot/2.31:1 Ratio) | G231123 & UP | 446-135 |
| 50 (4-Stroke/BigFoot/1.83:1 & 2:1 Ratio) | 0G231123-0T178499 | 446-136 |
| 50 (4-Stroke/Non-BigFoot) | T178500 & UP | 18-2635 |
| 55 (3-CYL) | D0000750 & UP | 18-2635 |
| 60 (3-CYL/Non-BigFoot) | D0000750 & UP | 18-2635 |
| 60 (4-Stroke/BigFoot) | D0000750 & UP | 446-135 |
| 60 (4-Stroke/Non-BigFoot) | T178500 & UP | 446-135 |
| 60 SeaPro / Marathon (3-CYL/BigFoot) | D0000750 & UP | 18-2635 |
| 70 | A996142 & UP | 446-135 |
| 75 (3-CYL) | A996142 & UP | 446-135 |
| 75 (4-Stroke) | G960500 & UP | 446-135 |
| 80 (3-CYL) | A996142 & UP | 446-135 |
| 90 (3-CYL) | A996142 & UP | 446-135 |
| 90 (4-Stroke) | G960500 & UP | 446-135 |
| 100 (4-CYL) | B209468 & UP | 446-135 |
| 115 (4-CYL) | C100000 & UP | 446-135 |
| 115 (4-Stroke EFI) | T178500 & UP | 446-135 |
| 125 (4-CYL) | D283222 & UP | 446-135 |
| V-135 | A904646 & UP | 446-132 |
| V-135 (DFI) | G590000 & UP | 446-132 |
| V-150 (Carb) | 6618751 & UP | 446-132 |
| V-150 (XR4/XR6/Mag2/Mag3) | B242885 & UP | 446-132 |
| V-150 (EFI) | D820000 & UP | 446-132 |
| V-175 (Carb) | 6618751 & UP | 446-132 |
| V-175 (Xri EFI) | D0000750 & UP | 446-132 |
| 175/225 (3.4L/V6/ProXs) | 2B529482 & UP | 87532G |
| V-200 (Carb) | 6625221 & UP | 446-132 |
| V-200 (Xri EFI) | C100861 & UP | 446-132 |
| V-200 (DFI 3.0L) | G386496-G960499 | 446-134 |
| 200/300 (4.6L/V8/ProXs) | 2B529482 & UP | 87532G |
| V-220 | B117316 & UP | 446-132 |
| V-225 (DFI) | G386496 & UP | 446-134 |
| V-250 | G386496 & UP | 446-134 |
| 250R/300R (4.6L/V8/RACING) | 2B529482 & UP | 87532G |
| 135-300 (4/6-CYL/VERADO) | 26-830749A01 | 87515G |
| 350 (SCI VERADO) | 1B716557-2B143542 | 87532G |
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22 of 22 Items