I have two Duplo train base parts, one that works, one that I want to repair, as it does not work (connects via Bluetooth, but in the end motor does not move). I disassembled that and figured out the motor does not work, even when I apply 5V manually to plus and minus terminals (on the other hand I can make motor moved that way). The motor shows "open line" resistivity, in contrast to around 10 Ohms in case of working motor. So it is broken (likely the wire has burned inside the motor and hence the open line).
Question: what motor should I buy for the replacement so that it fits? It is a relatively new part, so these "must" still be manufactured. The motor has no brand or marking on it whatsoever except for R 033K, which did not help me in any way.
There is a DUPLO train engine base part# 28743 engine is not working but I do not want to buy entire part, just the motor.