OER Parts offers a wide selection of Automatic Trans & Components for your 1981 Pontiac Catalina. OER Parts offers 1981 Pontiac Catalina Complete Transmission, 1981 Pontiac Catalina Cooler Lines, 1981 Pontiac Catalina Dipsticks & Tubes, 1981 Pontiac Catalina Flex Plate, 1981 Pontiac Catalina Gaskets, Seals, Filters & Hardware 1981 Pontiac Catalina Modulator Valves, 1981 Pontiac Catalina Shift Knobs, 1981 Pontiac Catalina Shift Linkage, 1981 Pontiac Catalina Shifters - OE, 1981 Pontiac Catalina Shifters - Performance, 1981 Pontiac Catalina Torque Converter & Covers, 1981 Pontiac Catalina Transmission Pans, and 1981 Pontiac Catalina Vacuum Lines.