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McIntosh & Seymour 531

Locomotive Engines

The McIntosh & Seymour 531 was a diesel prime mover designed and introduced in 1931 by McIntosh & Seymour, the Auburn, New York engine builder that the American Locomotive Company (Alco) bought in 1929 and used as its in-house engine maker. It was an inline six-cylinder four-stroke engine with a bore of 12.5 inches and a stroke of 13 inches, built in a naturally aspirated form rated at 600 horsepower and a turbocharged form rated at 900 horsepower. The 531 powered Alco's first series-built diesel switchers, the HH series, and it also drove the Rebel passenger trains. It was later replaced by the 538 engine, which gave a similar output with upgraded components.

Facts
Year
1931 1
Displacement or Thrust
Bore 12.5 inches (318 mm), stroke 13 inches (330 mm) 1
Cylinder Count
6 1
Power (kW)
447 1
Power (kW)
671 1
Classification
Fuel or Cycle
Diesel 1
Fuel or Cycle
Four-stroke 2
Configuration
Inline 1
Connections

Of Make

American Locomotive Company, Networks and Operators
Source McIntosh & Seymour 531 (Wikipedia)
In the Other Atlases

Manufactured By

American Locomotive Company

Also in Business Atlas: the manufacturer of this subject.

Source McIntosh & Seymour 531 (Wikipedia)Lead, parent company
Quote, Lead, parent company
The McIntosh & Seymour 531 was a diesel prime mover built by McIntosh & Seymour for use in railroad locomotives built by its parent company, the American Locomotive Company (Alco).
Sources
1. McIntosh & Seymour 531 (Wikipedia)
  • Lead, introduction
    The 531 engine was designed and introduced in 1931.
  • Lead, layout
    It was an inline six-cylinder engine, with a bore of 12.5 inches (32 cm) and a stroke of 13 inches (33 cm).
  • Lead, cylinders
    It was an inline six-cylinder engine, with a bore of 12.5 inches (32 cm) and a stroke of 13 inches (33 cm).
  • Lead, engine type
    The McIntosh & Seymour 531 was a diesel prime mover built by McIntosh & Seymour for use in railroad locomotives built by its parent company, the American Locomotive Company (Alco).
  • Lead, bore and stroke
    It was an inline six-cylinder engine, with a bore of 12.5 inches (32 cm) and a stroke of 13 inches (33 cm).
  • Lead, naturally aspirated output
    It was produced in naturally aspirated and turbocharged variants, making 600 and 900 horsepower, respectively.
  • Lead, turbocharged output
    It was produced in naturally aspirated and turbocharged variants, making 600 and 900 horsepower, respectively.
  • Lead, parent company
    The McIntosh & Seymour 531 was a diesel prime mover built by McIntosh & Seymour for use in railroad locomotives built by its parent company, the American Locomotive Company (Alco).
  • In Group: Diesel Locomotive Engines, Lead, diesel prime mover
    The McIntosh & Seymour 531 was a diesel prime mover built by McIntosh & Seymour for use in railroad locomotives built by its parent company, the American Locomotive Company (Alco).
  • Part Of: ALCO HH series, Lead, use
    It was primarily used in Alco's line of HH series switcher locomotives, as well as the Rebel passenger trains.
View the Source
2. QStation.org: Santa Fe HH600 2301, QStation
QStation.orgEngine description
Quote, Engine description
531 six cylinder four-cycle engine
View the Source
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