Works with Kadee: Truck Mount Gear Box #911 (831 type), Short Gear Box #912 (835 type), Swinging Gear Box #913 (832 type), Pilot Pocket #915 (791 type), Sill Mount Pocket (779 type), and AMS Molded on Gear Box.

One pair per package
Allows for an easy upgrade form Older Style Coupler to the AAR Type \”E\” \”Prototypical Head\” Coupler.