HO Scale wheel sets remain in place by a railroad truck or bogie. We offer parts from reliable brands, including HO Scale wheels and couplers, to fulfill your replacement or upgrade requirements.
There is a wide range of wheel sizes available. The most popular wheel diameters for model freight cars are 28 inches, 33 inches, and 36 inches. Older machinery may use 28-inch wheels, but in recent times, multi-level vehicle racks to minimize car height sometimes use wheels with a smaller diameter. For decades, 33-inch wheels were the standard. However, more modern locomotives, such as open and tank cars, gondolas, and hoppers, now require 36-inch wheels.