The Bolt,flange,8x16 is the most widely applied product in the TRX400EX FOURTRAX 2001 (1) USA STEERING SHAFT ( two times ).
The lowest price component in this Steering Shaft parts-list fiche is the Pin,split,3x25.
Some items from this specific schematic: Pin,split,3x25, Bush,steering, Seal,dust,23x35x7, Holder,strg Shaft.