Spark Plug Covers, Mounts and Boxes

Cast aluminum spare plug holders for the original battery covers with center rib as used from 1936-1964. The holder can accommodate two spark plugs with M18 x 1.5 thread.

Reproduction of the spark plug holder used on models from 1940–54. Clamps onto frame tubes.

Back in the days it was common to carry a set of spare spark plugs easily accessible on the motorcycle. Thus in case of a necessary change you didn’t have to dig them up deep from the bottom of your saddlebags. These block-off plates with two threaded sockets derive from the race track and are intended for magneto equipped bikes without generator. They simply install in lieu of your genny and bolt down with the stock hardware.

A quick answer to the question where to put a set of spare plugs. These adapters screw into the legs of Classic Springer Forks which feature legs with M20 x 1.5 threads at the upper end. If present, the stock top covers are omitted. Of course, you can use them with original forks, too, if you tap the legs.

With prices for original air-cooled spark plugs skyrocketing, this little conversion kit will be comparatively easy on your budget. It converts conventional D16 Champion spark plugs to the authentic air-cooled style.

These cooling rings can be used on all spark plugs with removable terminal nut.

These chrome-plated covers for the spark plugs and head bolts are louvered on top to efficiently dissipate the heat in this area. Easy installation with included mounting rubbers.

Add a classy touch to the Twin Cam engine´s spark plug and head bolt area. The covers are held in position with set screws. Spark plugs may be removed without taking the covers off.