HO RTR Arch Roof Set with Combine Diner and Observation Car (ATH73040)

HO-scale Arch Roof Set — Combine, Diner, and Observation Car is a three-car, ready-to-run package designed for HO layouts that recreates the distinctive Harriman-era arch-roof heavyweight passenger cars. This set brings authentic period detail to 1920s–1940s passenger service, with a removable magnetically attached roof and weighted bodies to help smooth, reliable operation on the track.

The cars ride on two- or three-axle trucks and use McHenry operating scale knuckle couplers along with machined 33" RP25 wheels for dependable, quiet coupling. Details such as stirrup steps, separate grab irons, window glazing, and vestibule partitions are finished with razor-sharp paint and printing. Each car runs about 8.5 inches long and is designed for a minimum 18-inch radius; the set comprises a Combine, Diner, and Observation Car, delivering a complete arch-roof heavyweight train for classic-era HO layouts.