HO gauge locomotive repair parts: drive gear and coal car linkage

This set provides an axle drive gear which meshes with the motor shaft's brass worm gear and a coal car linkage to repair an HO gauge locomotive of unknown manufacturer. These were made to return a broken engine we acquired with a ground away drive gear and broken linkage to full function. I have removed the 18 tooth gear as it turns out after more research the original ground away gear had 16 teeth, this explains why we were wearing out replacement gears so fast.

The linkage might need to