Bring big power to your HO scale railroad with the Walthers Mainline 910-21028 EMD SD70. Introduced in 1992 and built through 1999, this SD70 is equipped with the spartan cab also found on earlier EMD diesels. The layout-ready model uses all-new tooling to reproduce the prototype's details, including flush radiators of early production units, correct HTCR trucks, and treadplate walkway detail.

This 910-21028 locomotive wears Norfolk Southern paint as road number #2501 and includes ESU Sound and DCC for use on both DCC and standard DC layouts. It features a brass Nathan K5 air horn, cab interior, and molded drill starter points for grab irons that can be added with the SD70-Series Diesel Detail Kit (910-261, sold separately). The Walthers Proto drive supplies a five-pole skew-wound motor, 14:1 gear ratio, dual machined brass flywheels, and a heavy die-cast chassis. Minimum radius is 18", with 22" or larger recommended.

Key Features:
- HO scale (1:87) fully assembled diesel locomotive, item 910-21028
- Walthers Mainline brand, all-new tooling
- Norfolk Southern road number #2501
- ESU Sound and DCC for DCC or DC layouts, 21-pin DCC plug
- Four air horns and two bells changeable by CV
- LED lighting with working ditch lights, constant and directional
- Spartan cab, flush radiators, correct HTCR trucks
- RP-25 metal wheels and Proto MAX metal knuckle couplers
- Minimum radius 18" (22" or larger recommended)