The Oregon 106593X Drum Coupling is a high-quality replacement component designed for Husqvarna and Jonsered chainsaws. This genuine Oregon part directly replaces Husqvarna OEM part number 586980601. It is essential for the proper function of the clutch drum assembly in compatible models, ensuring reliable power transmission. Engineered for durability and precise fit, it is suitable for Husqvarna 545, 550XP, 550XP Mark II, 550XP G, 550XP Mark II G, 550XP TrioBrake, 550XP Mark II TrioBrake, 550XP G TrioBrake, 550XP Mark II G TrioBrake, and Jonsered CS2253, CS2253 WH, CS2253 WH II, CS2253 II series chainsaws.