They also provide the communication from the Truck to the Trailer including the workings of the rear lights

Audi A4 Avant (8Ed

the mounting brackets themselves are made from 3mm mild steel

FF/halogen main headlamp M133 for installation (left / right) - for left-hand traffic

EBS 02.01.24.900 BRAKE CHAMBER - MULTI-FIT - SINGLE - CAM - TY24 BlackFriday They also provide the communicationBrake chambers are used on truck and trailer air brake systems, located at each wheel, where compressed air is converted into a mechanical force used to apply the brakes and stop the vehicle. They are also designed to apply the the brakes automatically in the event that there is a loss of system air pressure. This happens because the air pressure holding back the heavy parking emergency spring dissipates allowing the spring to extend the pushrod which