All wheelsets with two crowd-pulling Bühler-powered engines

This is a Circuitron 5400 HO AR-1 Automatic Reverse Circuit

Model Number: 20-865-1

Trainz Product Id: 12103401

Kadee 1907 1 Scale Centerset AAR Type E Couplers & #911 Gear Box VariantsUnitPrice_number_37.91 All wheelsets with two crowd-pullingThis is a Kadee 1907 I Scale AAR Type E Couplers, Prototype Head Centerset Couplers & #911 Gearboxes Black One pair per package. It Features: AAR Type E Coupler Trouble Free Operation Hidden Knuckle Spring easy to install, drop in design Compatible with Kadee #1 Scale Couplers World renowned quality & performance They just Last & Last & Last Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Kadee Model