Suzuki Quadsport 400 owners, if your LT-Z400 is losing compression or running rough, this complete valve kit from Caltric has everything you need for a proper engine rebuild! The set includes 2 exhaust valves, 2 intake valves, 4 valve springs, 4 stem seals, 8 valve cotters, and 4 valve tappets - basically the full valve train components for a complete refresh. Designed specifically for 2003-2013 Quadsport 400 models (both LT-Z400 and LT-Z400Z), these parts match OEM specifications and dimensions for perfect fitment. The intake valves measure 1.41 inches long with 3.22 inch diameter, while exhaust valves are 1.14 inches long with 3.18 inch diameter - all precisely manufactured to factory standards. Whether you're addressing burnt valves, restoring compression, or doing preventive maintenance during a top-end rebuild, this complete kit saves you from buying individual components separately. The quality materials and construction ensure reliable performance that matches or exceeds original parts at a fraction of the cost. Before ordering, compare the photos to your existing valves to confirm compatibility, as proper fit is crucial for engine performance and longevity. Installation requires mechanical knowledge and proper tools, but the complete set means you have everything needed for the job in one package. Your Quadsport 400 deserves quality parts that deliver reliable performance on the trails, and this valve kit provides the complete solution for restoring your engine's power and efficiency. Don't piece together your valve train from separate sources - this comprehensive kit gives you matching components that work together perfectly for smooth engine operation and lasting reliability.