Share
Athearn Genesis (ATHG)
SKU:ATHG-1587
HO SD70M Locomotive Union Pacific #3973 (ATHG-1587)
HO SD70M Locomotive Union Pacific #3973 (ATHG-1587)
HO-scale Union Pacific SD70M Locomotive, road number 3973, a meticulously detailed model designed to bring the power and presence of UP’s modern freight hauler to an HO layout. This UP-livery SD70M captures the distinctive look of the prototype, with accurate paint, proportions, and a robust chassis built for smooth, reliable operation on standard HO track.
Key features include a heavy die-cast frame for traction, RP25 wheel contours for compatibility with popular brands of track, and body-mounted scale knuckle couplers (Kadee-compatible). Inside, a see-through cab reveals a full interior, complemented by LED lighting, walkways, and finely detailed handrails. The model is DCC-ready with Quick Plug plug-and-play technology and a 21-pin NEM connector; sound-equipped versions use a SoundTraxx Tsunami2 decoder that runs in both DC and DCC with full functions. UP 3973-specific details include replacement equipment doors under the cab in lighter yellow, a K3LA horn, PTC antennas, front ditch lights, a 5000-gallon fuel tank, and a front EMD low snowplow. Minimum radius is 18 inches, with 22 inches recommended for the smoothest operation.
Exploded View
Exploded View
Parts List
Parts List
Product Manual
Product Manual

Collapsible content
Overview
Features
Needed to Complete
Specifications
-
Example product title
Vendor:VendorRegular price $199.99Regular priceUnit price / perSale price $199.99 -
Example product title
Vendor:VendorRegular price $199.99Regular priceUnit price / perSale price $199.99 -
Example product title
Vendor:VendorRegular price $199.99Regular priceUnit price / perSale price $199.99 -
Example product title
Vendor:VendorRegular price $199.99Regular priceUnit price / perSale price $199.99
- Choosing a selection results in a full page refresh.
- Opens in a new window.