OER Parts offers a wide selection of Oil System & Parts for your 1968 Plymouth Road Runner. OER Parts offers 1968 Plymouth Road Runner Bypass Valves, 1968 Plymouth Road Runner Dipsticks and Tubes, 1968 Plymouth Road Runner Filter Adapters, 1968 Plymouth Road Runner Oil Coolers, 1968 Plymouth Road Runner Oil Filters, 1968 Plymouth Road Runner Oil Pan Baffles, 1968 Plymouth Road Runner Oil Pans, 1968 Plymouth Road Runner Oil Pickup Tubes, 1968 Plymouth Road Runner Oil Pumps, and 1968 Plymouth Road Runner Oil Senders.