Unmade kits are complete to the best of my knowledge but only include wheels and couplings if part of the kit.
Walthers Trainline Offset Hopper - 1.5 x 3.5 x 8.5 inches, Illinois Central
2x Walthers Trainline HO Scale Union Pacific Coal Hopper 85170 with load unboxed
Walthers Mainline 910-7751 HO Scale 60' NSC Hopper DME #51373
Walthers HO USA 932-3668 Pullman 50' Airslide Covered Hopper Car Wagon CNW Green
932-5377 Walthers HO Gauge Trinity 100T Cement Covered Hopper (Pre-Owned)
Walthers Covered Hopper Watkins Salt. New
