NAPA and such should have 12V sealed beam "H4" bulbs to fit, same as 55-57 and later single [7"] headlight models, fit about everything, look like this, same as your original 6V - or you could get halogens to fit, but they take more amps
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
