PROTO 2000
PROTO 2000 ALCO RS-27 w/Sound & DCC - Demonstrator No. 640-4
Mt. Penelope Railway Seal of Approval
PROTO 2000
HO Scale
Dual Mode DC/DCC
QSI® Quantum Sound®

ALCO RS-27


ALCO (Demonstrator)  No. 640-4



Limited Quantity!


As the horsepower race between major locomotive builders began heating up, ALCO rolled out its new RS-27 in late 1959.

While the design used the running gear of the RS-11, the new model was powered by a larger 16-cylinder prime mover that generated 2400 horsepower.

To accommodate its extra length, the cab was moved forward, and the front hood shortened, giving the RS-27s a very distinctive appearance.

Under relentless pressure from GE and EMD, ALCO was able to sell just 27 RS-27s before production ended in 1962.

ALCO's last road switchers have long been a favorite with modelers.

The PROTO 2000 models mark the first time these distinctive diesels have been offered in plastic.

Factory-Installed Sound & DCC Sound can be operated with standard DC power pack as well as DCC controllers.

  • Heavy diecast chassis
  • 5 Pole skew wound armature motor
  • Precisely meshed worm gear & spur teeth for silent running
  • Magnetic knuckle couplers
  • Sound features include: diesel engine, horn, bell, squealing brakes, doppler effect, air let off (in neutral), headlight, and trailer which mutes whistle and bell for double heading
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P2-920-31338
ALCO RS-27
ALCO (Demonstrator)
No. 640-4
Our Price: $168.74
MSRP: $224.98

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