Description
An adapter board that converts a 21MTC decoder connection to a 9-pin JST socket, specifically for Athearn locomotives that use the 9-pin JST standard. It lets you fit a 21MTC ESU decoder into an Athearn model without rewiring.
A clean, plug-based solution for a very common North-American conversion.
- Converts: 21MTC → 9-pin JST
- For: Athearn locomotives
- Benefit: plug-in 21MTC decoder fitment
Brand-new, genuine ESU (Electronic Solutions Ulm). Ships from our shop in Oakville, Ontario.