OER Parts offers a wide selection of Automatic Trans & Components for your 1973 Plymouth Valiant. OER Parts offers 1973 Plymouth Valiant Complete Transmission, 1973 Plymouth Valiant Cooler Lines, 1973 Plymouth Valiant Dipsticks & Tubes, 1973 Plymouth Valiant Flex Plate, 1973 Plymouth Valiant Gaskets, Seals, Filters & Hardware 1973 Plymouth Valiant Modulator Valves, 1973 Plymouth Valiant Shift Knobs, 1973 Plymouth Valiant Shift Linkage, 1973 Plymouth Valiant Shifters - OE, 1973 Plymouth Valiant Shifters - Performance, 1973 Plymouth Valiant Torque Converter & Covers, 1973 Plymouth Valiant Transmission Pans, and 1973 Plymouth Valiant Vacuum Lines.