851979 Marine
Bague etancheite
Two of these sit in the lower housing on 120S, 130S, 150S and MS25S. Order two. Volvo's current number is 24940252. Older books say 3593663. The 110S uses 897426.
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Fitted to
Engines, drives and generators whose parts catalogue lists this part. Open any for its exploded parts list.
EnginesOEM interchange
Other OEM part numbers for the same part — order from any of these makers or their dealers.
Same component rebadged by another engine marque — often the same part at a different dealer counter.
| Equivalent P/N | Brand | Description | Source | Confidence |
|---|---|---|---|---|
| 24940252 | Volvo-Penta | VP shop lip seal 24940252 supersedes 3593663; Yacht Boat Parts and Marisol same chain · depth:saildrive-seals | marisolmarine.com; volvopenta.com | confirmed |
Aftermarket equivalents cross-ref
Third-party equivalents (Jabsco, Sierra, WIX, Mann…) — not OEM; verify before ordering. Usually cheaper than the marine dealer.
| Equivalent P/N | Brand | Description | Source | Confidence |
|---|---|---|---|---|
| REC3593663 | Recmar | 120S/130S/150S/MS25S prop-shaft output lip; two required; current OEM 24940252 · depth:saildrive-seals | poseidonmarine.eu | confirmed |
Used in 6 places
Every catalog figure this part is placed in, the model(s) it applies to, and its reference/level/quantity.