The Bachmann EMD GP40 BNSF Railway #3012 
product number 63532, is a highly detailed HO scale diesel locomotive
 with all-wheel drive, a die-cast frame, and a factory-installed 8-pin or 21-pin socket for DCC upgrades

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Specifications
According to the Bachmann Trains online store and various retailers, the EMD GP40 BNSF #3012 (item #63532) has the following key specifications: 
Scale: HO Scale (1:87).
Power Type: Standard DC (Direct Current).
DCC Status: DCC-ready with a factory-installed 8-pin or 21-pin plug socket for easy decoder installation.
Motor: Precision motor.
Drivetrain: All-wheel drive for reliable performance.
Frame: Die-cast frame for weight and stability.
Lighting: Directional headlights.
Couplers: Magnetically operated E-Z Mate® Mark II knuckle couplers.
Wheels: Blackened metal wheels with RP25 contours.
Details: Highly detailed painted bodies with precision graphics, separately applied handrails and horn, clear cab windows, and see-through trucks with 
detailed side frames.
Minimum Curve Radius: Performs best on 18-inch radius curves or greater.
Dimensions: Approximately 8.5 inches in length, 1.5 inches wide, and 2 inches high.