The Bendix Commercial Vehicle Systems LLC 283940 Relay Valve is a relay valve used in commercial vehicle braking systems, identified as model R-6 with part number 1D1003H. It governs the flow of air to brake chambers to coordinate brake application and release in Bendix installations. The unit is designated by the 283940 part number, R-6 family, and 1D1003H specification, serving as a key component in Bendix braking hardware.
