HO Scale passenger locomotives and train cars are model trains available from various manufacturers, representing different railroads and eras. They can be used to build complete passenger train sets and are sold through hobby stores and online marketplaces.

HO scale diesel locomotives are model trains available for sale, including freight and passenger engines, with options like DCC, sound, and various railroad paint schemes. They are part of a collection of rare, collectible, and out-of-production HO scale trains and accessories.

HO scale steam engines are model trains available from various manufacturers, including Broadway, Bachmann, Rapido, and Roco. They are popular among collectors and model railroad enthusiasts and can include vintage pieces, repair projects, and rare or out-of-production models.