Mercedes benz relay valve973 011 2050

An air brake relay valve is an air-operated valve typically used in  truckair brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination. ... Next, it moves the disc, wedge or s-cam, which pushes the brake shoes and lining, creating friction.  Description:heavy truck relay valve/Europen truck relay valve Part No:973 001 0100/0200 Packing detail:20pcs/ctn  quality warranty:one year since on board date We are specialized in making and exporting European Truck spare parts  ,  mainly air brake valves like unloader valves ,clutch servos,air dryers ,foot brake valves,hand brake valves, air pressure control valves and so on .and also auto brake valves for Japanese trucks such as  Nissan,Hino,Isuzu .meanwhile ,we deal with Iveco spare parts like bumpers,sensors,lamps,body parts,rediators,clutch disc, clutch cover,cables etc. quality a…