WABCO 9347141510 Quadruple Protection Valve Assembly

The WABCO 9347141510 is a quadruple circuit protection valve designed for pneumatic brake systems on heavy-duty commercial vehicles. It distributes compressed air from the supply reservoir into four independent delivery circuits, ensuring that a leak in one circuit does not compromise the remaining circuits. This fail-safe architecture is critical for meeting international braking regulations. The valve body is manufactured from die-cast aluminum alloy, providing high structural integrity and corrosion resistance while minimizing weight. It features four delivery ports and one supply port, all threaded M22 x 1.5 to accept Voss 230/232 style push-in fittings standard on European and Asian commercial vehicles. The maximum operating pressure is rated at 10 bar (1.0 MPa). Physical dimensions are 109 mm x 109 mm x 144 mm (L x W x H) with a net weight of approximately 1.3 kg. The unit is a direct replacement for WABCO material numbers 9347141500, 9347141520, and 9347141610. It serves as original equipment on platforms including King Long (35G4211020, 36G4211020), FAW Jiefang J6, Sinotruk Sitrak, Dongfeng, and various European truck chassis from DAF, Volvo, Scania, MAN, Mercedes-Benz, and Iveco.