The Husqvarna 503597401 Diaphragm Set is a genuine OEM replacement part designed for Walbro carburetors used in a wide range of Husqvarna chainsaws and cut-off saws. This kit includes the necessary diaphragms and gaskets to rebuild or repair the carburetor, restoring optimal engine performance and fuel delivery. It ensures proper sealing and fuel regulation for models such as the 340, 350, 372, K760, and many others, maintaining the quality and reliability of your Husqvarna equipment.