NCE 5240120 N12A0 for many N Scale Atlas Locomotives 

Board Replacement DCC Decoder

This easy to install Plug & Play DCC decoder works with many N scale Atlas 4 Axle (and a few 6 Axle) Diesel Locomotives including the GP40-2, U25B, B23-7, 30-7, 36-7, GP38, SD25, Trainmaster, and others with similar design.

FEATURES:

• Motor rating: 1 Amp continuous, 1.25 Amp peak (stall)
• Golden Glow LEDs are included and installed.
• Select from 15 different lighting effects
• Decoder programming lock mechanism
• Size: 2.65" x 0.370" x 0.120"