Yamaha YX600 Radian Fork Seals

The Yamaha YX600 Radian runs a 36 mm upside-down front fork, oil seal 36x48x8 (Kayaba USD 36mm open cartridge).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 tube36 mm
  • Oil seal size36x48x8
  • Fork typeUpside-down
  • ForkKayaba USD 36mm open cartridge
KitYearsSeal sizeReplaces OEM
55-110 1986–1990 36x48x8 n/a
57-110 1986–1990 n/a n/a
56-121 1986–1990 n/a n/a

Verified fork kits we stock for your Yamaha YX600 Radian

Fork oil for your Yamaha YX600 Radian

A fork-oil change on the Yamaha YX600 Radian uses 10wt fork oil. Factory fill: OE ATF/10W-30 engine oil (pre-fork-oil era); modern 10wt.