Genuine OEM Citroen Gear Shaft Adjusting Washer Set, part number 9831665780. This set of precision washers is an integral component within the transmission assembly, specifically designed to adjust the critical clearance and alignment of gear shafts. Proper adjustment ensures smooth gear engagement and reduces wear. Choosing genuine OEM adjusting washers guarantees they meet exact factory specifications for thickness and material, which is crucial for maintaining precise gear mesh, minimizing friction, and ensuring the long-term reliability and quiet operation of the drivetrain.