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Original price $399.98
Original price $399.98 - Original price $399.98
Original price $399.98
Current price $359.99
$359.99 - $359.99
Current price $359.99

Walthers Proto 920-50700 HO Scale ALCo PA PB Diesel Set Southern Pacific SP 6006 / 5911

Sleek and stylish, the famed Alco PA and PB join the WalthersProto family of HO diesel power! Leading some of America's most popular new streamliners in the postwar years, the prototypes entered service in 1946 as Alco's answer to EMD's E units, before being reassigned to fast freight service in the 1960s. With all the details and proven performance that defines WalthersProto replicas.


  • One-time run of these roadnumbers, order now - limited quantity available
  • NEW - WalthersProto version!
  • Era-specific details
  • Factory-installed formed wire grab irons and handrails
  • 21mtc connector
  • Constant and directional LED Lighting including:
    • Headlight
    • Numberboards
    • Mars light
    • Working back up light
  • Rugged WalthersProto drive with:
    • Five-pole, skew-wound, high-torque, high-efficiency can motor
    • All-wheel drive and electrical pick up
    • 14:1 helical gears for smooth, ultra-quiet running
    • Dual brass flywheels
    • Easy multiple-unit operation
    • Heavy die cast metal chassis
  • Correct size RP-25 wheels
  • Proto MAX(TM) metal knuckle couplers

Based on Southern Pacific's second order of Alco PA-PB units delivered in the Daylight scheme, and powering the City of San Francisco and other SP trains with road- and era-specific features


  • Southern Pacific-style pilot plow
  • 5-Chime air horn
  • Wagon wheel radio antenna
  • Dynamic brakes
  • Nose MU receptacle