Yamaha YZ250 Fork Seals

Fork specs for the Yamaha YZ250 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
YearsFork tubeFork
1999–2001 46 mm Kayaba (KYB)
2002–2004 46 mm Kayaba (KYB)
2005 48 mm Kayaba (KYB)
2006–2021 48 mm Kayaba (KYB)
2022–2026 48 mm Kayaba (KYB)
KitYearsSeal sizeReplaces OEM
55-126 1996–2003 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 1996–2003 n/a n/a
57-105 2004–2025 n/a n/a
56-141 1996–2003 n/a n/a
56-147 2004–2025 n/a n/a
38-6010 (bushings) 1996–2003 n/a n/a
38-6050 (bushings) 2004 n/a n/a

Verified fork kits we stock for your Yamaha YZ250

Fork oil for your Yamaha YZ250

A fork-oil change on the Yamaha YZ250 uses 5wt fork oil, about 430 ml per leg (oil level 135 mm). Factory fill: KYB 01M (~5wt).

Fork protection for your Yamaha YZ250