This spark plug wire/magneto cap retainer will make sure your spark plug wires stay on the magneto cap on the magneto as you are blasting down the track breaking records and setting low E.T.'s.
Simple to install with the two provided thumb screws. Made from durable plastic fits all standard MSD 12, 20 and mag 44's with the standard magneto cap. Includes black plastic wire retainer and two thumb screws.