Yamaha FZR400 Fork Seals
The Yamaha FZR400 runs a 38 mm conventional front fork, oil seal 38x50x8.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 tube38 mm
- Oil seal size38x50x8
- Fork typeConventional
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-137 | 1988–1990 | 38x50x8 | n/a |
| 56-166 | 1988–1990 | n/a | n/a |
| 57-153 | 1988–1990 | n/a | n/a |
Verified fork kits we stock for your Yamaha FZR400

Fork Seal Kit
Fork Oil Seal Kit — Beta EVO 2T 125 (2009-2024)
$19.12

Fork Seal Kit
Fork Oil & Dust Seal Kit — Beta EVO 2T 125
$39.93

Fork Seal Kit
Fork Dust Seal Kit — Beta EVO 2T 125 (2009-2024)
$21.69
Fork oil for your Yamaha FZR400
A fork-oil change on the Yamaha FZR400 uses 10wt fork oil. Factory fill: SAE10W (Yamaha).













