1998 Yamaha WR400FK CRANKSHAFT PISTON This part is number 021 on this diagram Quantity required per assembly: 1
1998 Yamaha YZ400FK CRANKSHAFT - PISTON This part is number 021 on this diagram Quantity required per assembly: 1
1999 Yamaha WR400FL CRANKSHAFT PISTON This part is number 021 on this diagram Quantity required per assembly: 1
1999 Yamaha YZ400FL CRANKSHAFT PISTON This part is number 021 on this diagram Quantity required per assembly: 1
2000 Yamaha WR400F (WR400FM) CRANKSHAFT PISTON This part is number 021 on this diagram Quantity required per assembly: 1