Share
Athearn (ATH)
SKU:ATH-2144
HO RS-3 Locomotive SOU #6218 (ATH-2144)
HO RS-3 Locomotive SOU #6218 (ATH-2144)
HO-scale RS-3 Locomotive, Southern Railway #6218, is a ready-to-run model that captures the look and performance of the ALCO RS-3 diesel-electric locomotive. The RS-3, produced in the 1950s, delivered about 1,600 horsepower and served in freight and switching duties on many railroads; this HO model uses a heavy die-cast frame, all-wheel drive, and a precise 5-pole motor for smooth pulling power. RP25 wheel contours ensure compatibility with most HO track brands, while fine details like etched radiator fans and cab windows, metal grab irons, and fine-scale handrails enhance realism. McHenry knuckle couplers provide prototypical coupling, and DCC-ready Quick Plug technology with a 21-pin NEM connector makes adding DCC or sound straightforward; LED lighting adds durability. The model arrives fully assembled and painted in accurate prototype schemes, ready to place on the layout.
Sound-equipped versions include a DCC decoder with SoundTraxx Econami sound and a single cube speaker, operable in both DC and DCC modes with CV options for adjustments. It’s designed for HO layouts, offering reliable performance at low speed and solid pulling power, with a minimum recommended radius of 18 inches (22 inches preferred). The model reflects prototype resourcesâ€â€drawings, measurements, and photosâ€â€resulting in authentic paint schemes and detailing such as etched radiator fans, cab windows, metal grab irons, and fine-scale handrails, delivered in a rugged, ready-to-run package.
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 $179.99Regular priceUnit price / perSale price $179.99 -
Example product title
Vendor:VendorRegular price $179.99Regular priceUnit price / perSale price $179.99 -
Example product title
Vendor:VendorRegular price $179.99Regular priceUnit price / perSale price $179.99 -
Example product title
Vendor:VendorRegular price $179.99Regular priceUnit price / perSale price $179.99
- Choosing a selection results in a full page refresh.
- Opens in a new window.