P100338 Electric door motor for shuttle bus electric passenger door. Motor fits A & M Systems electric bifold passenger doors on shuttle buses built between October 2011 and September 2012.(mostly StarCraft commercial) 12v door motor with a 12 point gear. A&M Systems door motor. If your bus door needs a motor, and your motor looks like this with metal body and metal head, and twelve tooth gear and has an A & M Systems door closer this should be the one. Please look all of the photos provided. Notice the position of the wire harness connector. 800-172. Shuttle bus entry door motor. We sell more than shuttle bus passenger door electric motors. Please browse our store for all of your shuttle bus parts needs.