A few months ago I was able to acquire a new ERR Crane Commander (NOS) to upgrade my 2001 6-14134 Triple Action Magnet Crane to TMCC.
The instructions mention "If the motors do not have the small caps on them, please contact us. We can supply them, or if you wish, you may purchase 0.1uf @50v ceramic caps to place across the motors.
However, the bag of parts included what I'm supposing are the aforementioned caps. However, I thought these are normal black cylindrical devices. So I thought I'd check with the much smarter electrically minded folks here to verify these are the right items to be placing across the motors.