S&S Cycle 320-0397 Flywheel Assembly - 4in. Stroke

Flywheel assemblies are designed for use with Timken-style sprocket shaft bearings. S&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671in. crankpin. Fit directly in stock crankcases with no modifications. For 88in., 95in., and 100in. displacement in Twin Cam A and B motors with 4in. stroke. 4in. stroke flywheels can also be used in 03-06 motors when the left side main bearing is converted to a Timken-style bearing. Made in the U.S.A..

Vehicle Fitment:

2000-2002 Harley Davidson FLSTC Heritage Softail Classic
2001-2002 Harley Davidson FLSTCI Heritage Softail Classic
2000-2002 Harley Davidson FLSTF Fat Boy
2001-2002 Harley Davidson FLSTFI Fat Boy
2000-2002 Harley Davidson FLSTS Heritage Springer
2001-2002 Harley Davidson FLSTSI Heritage Springer
2000-2002 Harley Davidson FXST Softail Standard
2000-2002 Harley Davidson FXSTB Night Train
2001-2002 Harley Davidson FXSTBI Night Train
2000-2002 Harley Davidson FXSTD Softail Deuce
2001-2002 Harley Davidson FXSTDI Softail Deuce
2001-2002 Harley Davidson FXSTI Softail Standard
2000-2002 Harley Davidson FXSTS Springer Softail
2001-2002 Harley Davidson FXSTSI Springer Softail