Wheel Cylinder Rear BBW1633 Borg & Beck. Part Number BBW1633. BORG & BECK BBW1633. VAG 6N0611053, 6Q0611053C. Type Wheel Brake Cylinder. Brake ENGINEERING WC1349BE. BRAKE FIT BWC8037. Fitting Position: Rear Axle Left; Fitting Position: Rear Axle Right; Vehicle Identification Number (VIN) to: F127903; Braking System: for vehicles without brake force regulator; Material: Aluminium.