This listing is for an aftermarket commutator or "Timer" for a Model T Ford, should fit all years except for the very earliest cars. This is an accessory timer with a cast iron body, that features individual rollers for each contact instead of a single roller, which makes it interesting but unnecessarily complex. I do not have the timing lobe that mounts to the camshaft; you will have to fabricate one if you want to use this part. I'm also throwing in a generic Model T Timer. Both are used junkyard parts that will need work if you actually want to run them. Items shown in pictures are what you will receive.