Era: 1969 – Present For best operation, we recommend minimum radius of 28”
• Separately-applied wire grab irons • Celcon Handrails
• See-through dynamic brake intakes with grid details • Detailed cab interior
• Etched windshield wipers • Etched radiator and dynamic brake fan grills
• Etched, see-through walkways above fuel tank • Numerous underframe details and plumbing
• 16-wheel pickup and drive • Dual motors with flywheels
• Non-sound units are DCC ready using Quick Plug technology (note – two decoders are needed per locomotive).
• Dual decoders and speakers in sound-equipped versions
• Sound versions feature dual Soundtraxx Tsunami decoders, with authentic DDA40X sounds recorded from UP #6936

• Prototype-specific details per phase and era, including:
• Anticlimbers • Electrical cabinet doors
• Cab sub-base doors • Handrails (with or without ACI placards, solid or chain end rails)
• Fuel tank • Truck sideframe roller bearings
• Horns • Warning lights
• Rooftop details • Cab sunshades or awnings