I noticed the other week that my automatic tranny wasn't shifting into overdrive. I took it in to the transmission shop and they say I need a new solenoid. The part number they gave me was MB919150. This thing bolts to the tranny case on the outside. Does anybody here have any idea where to get this part? The transmission shop can't find it. I've tried ordering a couple of solenoids using the description "overdrive solenoid" but have gotten the wrong parts. I get solenoids for the A500 tranny which is apparently a Chrysler make. The mechanic at the transmission shop says my tranny is a Japanese make and the solenoids aren't the same. Any help will be appreciated.