Distributor Caps · Basis NZ
Distributor caps for 1920s–1980s classic cars
The distributor cap carries the spark from the rotor arm to each cylinder, so a cracked cap, carbon tracking or a corroded terminal shows up as misfires, hard starting and a rough idle — usually worse on damp mornings. Basis stocks distributor caps for classic cars from the 1920s through to the 1980s.
Match the cap to your distributor, not just the car: how the leads enter, how the cap is held down and the number of cylinders all vary, and many cars changed distributor part-way through production. Look inside the old cap for white or black tracks and worn terminals, and fit a new rotor arm at the same time.