OER Parts offers a wide selection of Ignition System Components for your 1968 Plymouth Road Runner. OER Parts offers 1968 Plymouth Road Runner Performance Ignition, 1968 Plymouth Road Runner Stock Ignition, 1968 Plymouth Road Runner Coils, 1968 Plymouth Road Runner Cap and Rotors,, 1968 Plymouth Road Runner Ignition Control Modules, 1968 Plymouth Road Runner Spark Plugs, 1968 Plymouth Road Runner Spark Plug Wires, 1968 Plymouth Road Runner Distributors, and 1968 Plymouth Road Runner Tune Up Kits.