What fork seal fits a Yamaha YZ250F?

The Yamaha YZ250F uses a front fork that changed across model years: 46 mm (2001–2005), 48 mm (2006–2009), 48 mm (2010–2013), 48 mm (2014–2018), 48 mm (2019–2023), 48 mm (2024–2026). We stock the manufacturer-verified seal and bushing kits for it; matching is done off the verified application list, not just the seal size.

What size is the Yamaha YZ250F fork?

The Yamaha YZ250F has a front fork that changed across model years: 46 mm (2001–2005), 48 mm (2006–2009), 48 mm (2010–2013), 48 mm (2014–2018), 48 mm (2019–2023), 48 mm (2024–2026).

Can I use any seal with the same dimensions?

No. Fork seals can share a size and still not seat correctly in a different fork design, so use the seal verified for your bike. The kits listed here are confirmed by the manufacturer to fit the Yamaha YZ250F.

Yamaha YZ250F Fork Seals

Fork specs for the Yamaha YZ250F 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
2001–2005	46 mm	Kayaba
2006–2009	48 mm	Kayaba
2010–2013	48 mm	Kayaba
2014–2018	48 mm	Kayaba
2019–2023	48 mm	Kayaba
2024–2026	48 mm	Kayaba

Kit	Years	Seal size	Replaces OEM
55-126	2001–2003	46x58x9.5	n/a
55-132	2004–2025	48x58x8.5	Honda 51490-MEN-A31, Honda 51490-MEN-003, Kawasaki 92049-0074, Yamaha 1C3-23145-L0-00
57-103	2001–2003	n/a	n/a
57-105	2004–2025	n/a	n/a
56-141	2001–2003	n/a	n/a
56-147	2004–2025	n/a	n/a
38-6010 (bushings)	2001–2003	n/a	n/a
38-6050 (bushings)	2004	n/a	n/a