Yamaha YZ400 Fork Seals
Fork specs for the Yamaha YZ400 vary by year (see the table below).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 typeConventional
| Years | Fork tube |
|---|---|
| 1976 | 36 mm |
| 1977–1979 | 38 mm |
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-109 | 1976 | 36x48x11 | Kawasaki 92049-1226 |
| 55-112 | 1977–1979 | 38x50x10.5 | n/a |
| 57-119 | 1977–1979 | n/a | n/a |
| 57-120 | 1976 | n/a | n/a |
| 56-120 | 1976 | n/a | n/a |
| 56-124 | 1977–1979 | n/a | n/a |
Verified fork kits we stock for your Yamaha YZ400
Fork Seal Kit
Fork Oil Seal Kit — Honda XR200R (1984-2002) +
$19.12
Fork Seal Kit
Fork Oil Seal Kit — Ducati 750 F1 (1986-1989) +
$18.24
Fork Seal Kit
Fork Dust Seal Kit — Honda CR125R (1982-1983) +
$19.50
Fork Seal Kit
Fork Dust Seal Kit — Honda XR200R (1984-2002) +
$19.87
Fork Seal Kit
Fork Oil & Dust Seal Kit — Honda XR200R
$40.57
Fork Seal Kit
Fork Oil & Dust Seal Kit — Honda CR125R
$38.50
Fork oil for your Yamaha YZ400
A fork-oil change on the Yamaha YZ400 uses 5wt fork oil. Factory fill: KYB 01M / Showa SS-05 (~5wt).
