HO ACF 4600 3-Bay Center Flow Hopper C&NW #180337 (ATHG15435)

HO-scale ACF 4600 3-Bay Center Flow Hopper in CNW livery, road number 180337. This model reproduces a mid-1960s grain-hauling hopper built by American Car and Foundry, featuring a 3-bay Center Flow design with a rounded body that provides structural strength and easier gravity unloading. The 4600 cubic-foot capacity version was a common choice for replacing older 40-foot box cars on light branchline and industrial service, capturing the era’s proportions and look.

Off the shelf, the HO model arrives fully assembled and ready to run, with accurate paint and detailing on a highly crafted injection-molded body. It showcases era-specific variations with three body styles—early with a high-side ladder and brake wheel, mid with a low brake wheel, and late with double-side stiffeners—plus round or trough hatches, a photo-etched roofwalk, and separately applied wire grab irons and stirrup steps. Additional touches include multiple outlet versions, a separate brake cylinder, valve and air reservoir with wire brake plumbing, body-mounted McHenry operating scale-knuckle couplers, and weight tuned for smooth operation. The car rides on Genesis 100-ton trucks with 36-inch machined metal wheels and animated spinning roller bearing caps, using screw-mounted trucks for secure handling and providing road numbers to match the prototype.