· Cylinder Head Kit Comes Assembled with Valves, Valve Guides, Keepers, Oil Seals and Springs Already Installed. · Cylinder Head Kit Contains: Cylinder Head, Head Gasket, Valve Cover Gasket, Oil Seal, Intake Valve, Exhaust Valve, Spring Seats, Valve Springs, Valve Retainer Springs, Collets, Brackets, Bolts, Manifold Gaskets, Exhaust Gaskets & Studs. · Fits Kawasaki FX751V, FX801V & FX850V 852cc Model Engines. · Genuine OEM Kawasaki Part. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.