This drive sprocket is compatible with the Husqvarna 365, 372, 385 and 390 series chainsaws and is sold separately as an accessory.--BIEMMEDUE

The drive pulley (clutch drum/sprocket) is a crucial component of a chainsaw's power transmission system. It connects the clutch to the guide chain, transferring power from the engine to the chain for cutting. Over time, the sprocket teeth wear down, leading to chain slippage and skipping. This impairs cutting performance and accelerates wear on the chain and guide bar. This product is specifically designed for Husqvarna 365, 372, 385, 390 chainsaws and other popular models. Precision-machined from high-quality alloy steel, it benefits from a special hardening process on the sprocket teeth, providing excellent wear resistance and optimal durability. This ensures smooth engagement of the chain and sprocket, as well as efficient and stable power transmission. The two-piece construction offers a significant advantage. Unlike conventional one-piece drive pulleys, where the entire sprocket must be replaced when worn, this pulley offers considerable cost savings. The two-piece design of this product allows for the replacement of only the worn sprocket section, while the clutch drum can be reused. This significantly reduces maintenance costs and makes the product more economical. The installation dimensions conform to the original specifications; simply replacing the worn parts restores normal power transmission. It is recommended to regularly inspect the sprocket teeth for wear. If you notice wear on the tooth tips, groove depressions, chain skipping, or slippage, the drive pulley must be replaced immediately to protect the chain and guide bar and ensure safe and efficient cutting operations. This high-quality replacement part offers an economical and practical maintenance solution. When replacing the sprocket, it is advisable to also check the condition of the sprocket and clutch spring. If these show signs of wear or aging, they should be replaced at the same time to ensure optimal clutch system function.