Walthers Proto Replacement Geared Driver Assembly for Early PROTO 2000 E6/7/8/9 Diesel Wheelset. Comes in a pack of 3 in HO scale. Part # 920 - 584494.

These Walthers Proto geared driver assemblies are easy to use. First, make sure your model is an early PROTO 2000 E6/7/8/9. Then, carefully replace the old diesel wheelset with these new ones. When handling, be gentle to avoid any damage. To keep them in good shape, clean them regularly with a soft brush. If you notice any loose parts, tighten them up right away. This will ensure smooth operation and a long - lasting performance of your model train.