Aftermarket New Old Reproduction Stock Heater Water Control Valve with Mounting Bracket for all 71-83 Vehicles listed below with or without A/C. Replaces OEM Part #’s 3441789, 3579173 and 4034436 which were all Supersceded to each other by Chrysler. These may look different to the Originals, but will Work and Mount the same. If your Original did not have or use a Mounting Bracket, then use our Part # WV0004 instead. Valve is Normally Open and then Closed under Vacuum. 1/2″ Inlet and Outlet. Made by Stant.71-74 A-Bodys with A/C.71-74 B-Bodys without A/C with Upper Level Vents.71-73 C-Bodys without A/C with Upper Level Vents.71-72 C-Bodys Rear Heater to Front Core with Upper Level Vents.71-83 Ramchargers with Rear Heater.71-83 B-Vans with Rear Heater.