The Atlas Classic N Scale SD-7 Locomotive is based on the prototype manufactured by EMD from February 1952 to November 1953. Utilizing a 1,500 hp engine and a longer underframe than the GP-7, the SD-7 was the first locomotive to use EMD's Flexicoil truck.

Features Include:
-Scale Speed motor
-Powered low friction drive
-Blackened metal wheels
-Dual brass flywheels
-Directional lighting
-Golden-white LEDs
-Body-mounted AccuMate? couplers

AccuMate? couplers are made under license from AccuRail, Inc.