Sifton 10-1635 4.250-Inch Stroke Flywheel Set

Sifton cast flywheel set with a 4.250 inch stroke and a 6 taper for shafts. The sprocket shaft side of the flywheel is narrow style.

The Sifton 10-1635 4.250-inch Stroke Flywheel Set includes right- and left-side wheels, each 1.450 inches thick. Sold as a pair, this set accepts OE-style components for an 80-inch engine.

The flywheel set fits select 1978–1984 Harley-Davidson FL models and select 1978–1980 Harley-Davidson FX models. Verify vehicle application and component requirements before ordering.

Features:

• Stroke: 4.250 inches
• Wheel Thickness: Right and left wheels are each 1.450 inches thick
• Component Compatibility: Accepts OE-style components for an 80-inch engine
• Quantity: Sold as a pair
• Fitment: Fits select 1978–1984 Harley-Davidson FL models and select 1978–1980 Harley-Davidson FX models

Fitment:
Harley Davidson FL 1978
Harley Davidson FL 1979
Harley Davidson FL 1980
Harley Davidson FL 1981
Harley Davidson FL 1982
Harley Davidson FL 1983
Harley Davidson FL 1984
Harley Davidson FLST 1986
Harley Davidson FLST 1987
Harley Davidson FLST 1988
Harley Davidson FLST 1989
Harley Davidson FLST 1990
Harley Davidson FLST 1991
Harley Davidson FLST 1992
Harley Davidson FLST 1993
Harley Davidson FLST 1994
Harley Davidson FLST 1995
Harley Davidson FLST 1996
Harley Davidson FLST 1997
Harley Davidson FLST 1998
Harley Davidson FLT 1979
Harley Davidson FLT 1980
Harley Davidson FLT 1981
Harley Davidson FLT 1982
Harley Davidson FLT 1983
Harley Davidson FLT 1984
Harley Davidson FLT 1985
Harley Davidson FLT 1986
Harley Davidson FLT 1987
Harley Davidson FLT 1988
Harley Davidson FLT 1989
Harley Davidson FLT 1990
Harley Davidson FLT 1991
Harley Davidson FLT 1992
Harley Davidson FLT 1993
Harley Davidson FLT 1994
Harley Davidson FLT 1995
Harley Davidson FLT 1996
Harley Davidson FLT 1997
Harley Davidson Fx 1978
Harley Davidson Fx 1979
Harley Davidson Fx 1980
Harley Davidson Fx 1981
Harley Davidson Fx 1982
Harley Davidson Fx 1983
Harley Davidson Fx 1984
Harley Davidson FXD 1984
Harley Davidson FXD 1985
Harley Davidson FXD 1986
Harley Davidson FXD 1987
Harley Davidson FXD 1988
Harley Davidson FXD 1989
Harley Davidson FXD 1990
Harley Davidson FXD 1991
Harley Davidson FXD 1992
Harley Davidson FXD 1993
Harley Davidson FXD 1994
Harley Davidson FXD 1995
Harley Davidson FXD 1996
Harley Davidson FXD 1997
Harley Davidson FXD 1998
Harley Davidson FXST 1984
Harley Davidson FXST 1985
Harley Davidson FXST 1986
Harley Davidson FXST 1987
Harley Davidson FXST 1988
Harley Davidson FXST 1989
Harley Davidson FXST 1990
Harley Davidson FXST 1991
Harley Davidson FXST 1992
Harley Davidson FXST 1993
Harley Davidson FXST 1994
Harley Davidson FXST 1995
Harley Davidson FXST 1996
Harley Davidson FXST 1997
Harley Davidson FXST 1998