I have a Chrysler Industrial Series 30 flathead six with an Autolite 6V starter that the solenoid has apparently failed. I can find a four digit model number of 4048 on the starter. If there are more digits necessary to identify the starter, they proceed the 4048 and have been obliterated on the ID plate. I believe the solenoid contacts have failed because if we remove the starter from the engine and apply 12V power the starter spins. On board the engine we can hear the solenoid click but the starter does not spin. Anyone have any ideas where I can get parts, or what may be wrong? Thanks.