Clutch Drum Needle Bearing Kit: Fits Husqvarna 340 345 346 XP 350 351 353 445 450 Chainsaw. Pitch: .325''. Teeth: 7. Replace OEM clutch for 537110503. You will receive: 1 x Clutch Drum 1 x Clutch 1 x Sprocket 1 x Needle Bearing Fits Husqvarna 340 345 346 XP 350 351 353 445 450 Chainsaw. Pitch: .325" Teeth: 7. Replace OEM clutch for 537110503. Package includes: 1 x Clutch Drum, 1 x Clutch, 1 x Sprocket, 1 x Needle Bearing.