Part#: 40-F-PS
F MODEL PISTON 82MM BORE

Part#: 40-F-PS-S2
F MODEL PISTON 82MM BORE .020

Part#: 40-G-PS
6G MODEL PISTON 75MM BORE

Part#: 40-G-PS-S2
6G MODEL PISTON 75MM BORE

Part#: 40-H-PS
6H MODEL PISTON 70MM BORE

Part#: 40-H-PS-S2
6H MODEL PISTON 70MM BORE S2