HO SD40T-2 Locomotive CFE #3316 (ATH71755)

HO-scale SD40T-2 Tunnel Motor Locomotive, road number 3316, is a meticulously detailed model that reproduces EMD’s iconic six-axle tunnel motor for HO layouts. Designed for serious hobbyists, this locomotive captures the prototype’s rugged silhouette and cooling-focused features, including a see-through cab and carefully rendered details. The drive system combines a 5-pole motor with flywheels and a multi-link drivetrain for smooth, quiet operation, and it rides on RP25-contoured wheels for reliable tracking on standard HO track. It is DCC-ready with a 21-pin interface and can be upgraded with sound, with Legendary Liveries providing era-appropriate, visually striking paint schemes.

Prototype context and layout practicality come into play here: the SD40T-2 was a six-axle, 3,000-horsepower diesel-electric designed for tunnel service, with rear radiator intakes and distinctive cooling features. The model reflects those details with see-through radiator grilles, front and rear ditch lights, a hood-mounted horn, and extra scale detailing such as fine handrails and see-through cab windows. For additional performance, the chassis accepts a Genesis motor retrofit kit, and sound-equipped versions include an onboard DCC decoder with engine, horn, and bell sounds that operate in both DC and DCC. Minimum radius is 18 inches, with 22 inches recommended to accommodate its length and detailed features.