Fits Husqvarna 340 345 346 XP 350 351 353 445 450 chainsaw. Pitch: .325" Teeth: 7. Replace OEM clutch for 537110503. p> Package includes:1 x clutch drum, 1 x clutch, 1 x sprocket, 1 x needle bearing. Clutch shaft seal: In some cases, a Clutch shaft seal may be included to prevent transmission oil leaks. Easy to Install:The specifications of our replacement parts are exactly the same as the original parts, the replacement work will be quick and effortless. Restore Performance :The brand new high quality clutch drum will be very helpful in restoring the chainsaw to peak performance. Replacing the clutch is a complex operation that usually requires advanced mechanical skills. It is recommended that you hire a qualified mechanic to perform this task, as improper clutch installation may cause damage. can cause transmission problems and other vehicle malfunctions. A quality clutch kit is essential to ensure reliable operation and optimal durability of your car's transmission. Best quality: high quality and long life aftermarket parts accessories, please compare your original model carefully with our photos and product details to avoid the problem of model mismatch. More questions please feel free to contact us Please pay attention to the size and model you need before purchasing.We provide quality service 24 hours a day, Do not hesitate to contact us if you have any questions!