OER Parts offers a wide selection of Battery Accessories for your 1967 Plymouth GTX. OER Parts offers 1967 Plymouth GTX Battery Tender, 1967 Plymouth GTX Battery Managment System, 1967 Plymouth GTX Dual Battery System Controller Set, and 1967 Plymouth GTX Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller