Genuine OEM Audi Piston Complete, part number 06E107066DQ. This piston is a key component within the engine cylinder, converting the thermal energy from fuel combustion into mechanical force. It is designed to operate within the engine's combustion chamber. This part weighs 0.426 kg. Genuine OEM pistons are manufactured to exact tolerances, ensuring proper sealing, heat dissipation, and durability for reliable engine operation.