Chesapeake & Ohio LEGACY E7 AA EMD's best-selling and iconic E unit, the E7 helped many railroads dieselize mainline passenger trains in the 1940s and 50s. From crack limiteds to commuter runs, the prolific E7 even found its way into freight service on some roads, especially in later years. Matching SuperBass B units are also available in each scheme for those looking for a longer and louder consist. SKU: 2633570 Dimensions: Length: 17" ea Gauge: O Gauge rail line: Chesapeake & Ohio Minimum Radius: O36 Power: Electric Engine: Diesel Manuals Find the latest manuals in our support section. Replacement Parts Buy any replacement parts in our support section. Contact Contact a service station to fix your product