TwinPower TwinPower 43363 - Twin Power 17-Up M8 114 CID Top End Gasket Kit Replaces H-D 25700729 M8 4.0 Bore .030 Head Gasket
TwinPower TwinPower 43360 - Twin Power 17-Up M8 Top End Gasket Kit Replaces H-D 25700729 M8 3.937 Bore 107 CID .040 Head Gasket