HO SD40 Locomotive FWWR 2029 (ATH73645)

HO SD40 Locomotive in FWWR livery is a detailed HO-scale model of EMD’s SD40 diesel, designed to bring authentic freight-hauling power to a model railroad layout.

It’s built for versatile operation on both DC and DCC layouts, and can be upgraded with onboard SoundTraxx Econami sound for a more immersive feel, using a single cube speaker. Realistic details include LED lighting, see-through cab windows, photo-etched windshield wipers, and separately applied wire grab irons and air tanks, plus fine-scale handrails, an exhaust stack, and a 4,000-gallon fuel tank. The model rides on RP25 wheels with McHenry scale knuckle couplers and uses all-wheel drive for smooth, reliable traction, while a DCC-ready Quick Plug 21-pin interface makes decoder installation straightforward. A CV chart is included to tailor performance, and NMRA-compliant functionality is available in DCC (some functions may be limited in DC). The minimum operating radius is 18 inches, with 22 inches recommended for best results, and the powertrain features a robust 5-pole skew-wound motor with flywheels for steady low-speed operation.