Suzuki GS400 Fork Seals

The Suzuki GS400 runs a 33 mm conventional front fork, oil seal 33x46x11.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 tube33 mm
  • Oil seal size33x46x11
  • Fork typeConventional
KitYearsSeal sizeReplaces OEM
55-107 1977–1978 33x46x11 n/a
57-131 1978 n/a n/a
56-114 1978 n/a n/a

Verified fork kits we stock for your Suzuki GS400

Fork oil for your Suzuki GS400

A fork-oil change on the Suzuki GS400 uses 10wt fork oil. Factory fill: OE ATF/10W-30 engine oil (pre-fork-oil era); modern 10wt.