ACT Heavy Duty Race Sprung 4 Pad Clutch Kit For 1990-2005 Mazda MX-5 Miata 1.6L/1.8L 2004-2021 Harley-Davidson Sportster Upgrade the OEM head bolts

Upgrade the OEM head bolts on your 2017-2023 GM 6

Twin Tube Hydraulic Construction

Unlike other options on the market

1999-2006 GMC Yukon 4

ACT Heavy Duty Race Sprung 4 Pad Clutch Kit For 1990-2005 Mazda MX-5 Miata 1.6L/1.8L 2004-2021 Harley-Davidson Sportster Upgrade the OEM head boltsZM2 HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4 pad spring centered race disc features a spring center to properly damp