Wiseco CPK017 Clutch Pack Kit Fits: Suzuki DR-Z400 2000-2011; Kawasaki KLX400 2003-2006; Kawasaki KFX400 2003-2005; Suzuki LT-Z400 2003-2004 Contains everything you need to upgrade your worn out clutch plates and springs, frictions, steels, and clutch springs, all made from premium grade materials The frictions and steels are made with exact OEM tolerances and specifications, and produce the same feel and wear resistance of OEM plates Wiseco clutch springs are 8-10 percent stiffer than stock to ensure a positive clutch lockup every time Clutch pack kits are an easy solution to worn or slipping clutch packs