Ducati 851 Fork Seals
The Ducati 851 runs a 41 mm front fork, oil seal 41x54x11.Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.
- Fork tube41 mm
- Oil seal size41x54x11
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-119 | 1990–1993 | 41x54x11 | BMW 31422312838, BMW 31428358444 |
Verified fork kits we stock for your Ducati 851
Fork oil for your Ducati 851
A fork-oil change on the Ducati 851 uses 7.5wt fork oil, about 480 ml per leg (oil level 85 mm). Factory fill: Shell Advance Fork 7.5 (7.5wt) — Ducati-spec for Showa/Marzocchi street forks.













