Yamaha WR450F Fork Seals
Fork specs for the Yamaha WR450F 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 typeUpside-down
| Years | Fork tube | Fork |
|---|---|---|
| 2003–2004 | 46 mm | Kayaba |
| 2005–2015 | 48 mm | Kayaba |
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-126 | 2003–2004 | 46x58x9.5 | n/a |
| 55-132 | 2005–2025 | 48x58x8.5 | Honda 51490-MEN-A31, Honda 51490-MEN-003, Kawasaki 92049-0074, Yamaha 1C3-23145-L0-00 |
| 57-103 | 2003–2004 | n/a | n/a |
| 57-105 | 2005–2025 | n/a | n/a |
| 56-141 | 2003–2004 | n/a | n/a |
| 56-147 | 2005–2025 | n/a | n/a |
| 38-6010 (bushings) | 2003 | n/a | n/a |
| 38-6050 (bushings) | 2005–2011 | n/a | n/a |
Verified fork kits we stock for your Yamaha WR450F
Fork Seal Kit
Fork Oil Seal Kit — Ducati Desert X (2023-2025)
$19.50
Fork Seal Kit
Fork Oil Seal Kit — Beta RR 2T 125 (2019-2023) +
$18.24
Fork Seal Kit
Fork Dust Seal Kit — Beta RR 2T 125 (2019-2023)
$19.50
Fork Seal Kit
Fork Oil & Dust Seal Kit — Ducati Desert X
$39.78
Fork Seal Kit
Fork Oil & Dust Seal Kit — Beta RR 2T 125
$40.57
Fork Bushing Kit
Fork Bushing Kit — Honda CR125R (1997-2007) + 16
$52.84
Fork Bushing Kit
Fork Bushing Kit — Yamaha WR250F (2006-2014) + 5
$53.47
Fork oil for your Yamaha WR450F
A fork-oil change on the Yamaha WR450F uses 5wt fork oil. Factory fill: KYB 01M (~5wt).
