Genuine OEM Cupra Rear Axle Spring Washer, part number 1EA803457. This spring washer is a critical component within the rear axle assembly, designed to provide essential spring tension and securely fasten other parts. Its construction from hardened steel ensures durability and resistance to deformation under load. Genuine OEM parts are vital for suspension components to maintain precise spring rates, prevent loosening, and ensure a safe and comfortable ride.