Yamaha WR250R Sport R Fork Seals

The Yamaha WR250R Sport R runs a 46 mm upside-down front fork, oil seal 46x58x9.5 (WP USD 48mm (KTM EXC/SX 1996-2007 era) + Sachs USD 48mm (Beta RR 2013-2023)).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 tube46 mm
  • Oil seal size46x58x9.5
  • Fork typeUpside-down
  • ForkWP USD 48mm (KTM EXC/SX 1996-2007 era) + Sachs USD 48mm (Beta RR 2013-2023)
KitYearsSeal sizeReplaces OEM
55-126 2008–2020 46x58x9.5 n/a
57-103 2008–2020 n/a n/a
56-141 2008–2020 n/a n/a
38-6010 (bushings) 2008–2020 n/a n/a

Verified fork kits we stock for your Yamaha WR250R Sport R

Fork oil for your Yamaha WR250R Sport R

A fork-oil change on the Yamaha WR250R Sport R uses 5wt fork oil. Factory fill: Yamaha 01 / KYB (~5wt).