Applies to Husqvarna 435 440 passive bobbins, including the complete passive bobbin and needle rollers.--BIEMMEDUE

This integrated clutch disc assembly was specifically developed for the Husqvarna 435 and 440 chainsaws. Thanks to its one-piece construction and pre-installed, high-quality needle bearings, it forms the heart of the clutch system. It replaces worn or warped original discs, as well as those with damaged bearings or oil seals resulting from continuous use under heavy loads. It effectively resolves issues such as power transmission problems, uneven chain running, clutch overheating, and unusual noises, ensuring smooth and efficient power transfer to the chain.