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Trucks on Display


Below is a sampling of many of the trucks on display in our Trucking Hall of Fame® Exhibit Hall. Check out our app for more information, photos, and an audio recording for each truck.  Click here to download.

1915 Mack AB

Engine Type:
255.33 Cubic Inch 4-Cylinder

Transmission Type:
5-Speed: 4 Forward Speeds & 1 Reverse

Truck Information:
This Mack, serial number 361, is the oldest Mack AB known to still exist. This AB model was Mack's first standardized high volume truck model. According to Mack, 51,364 AB models were made from 1914 to 1937. The AB used either chain or worm drive and the trucks design stayed relatively the same for the entire production run. Gear ratios available at the time were from 5.75 to 1 all the way to 10.5 to 1. Top speed depended on the gear ratio and ranged from 13 miles per hour with the 10.5 to 1 ratio all the way to a blistering 24 miles per hour with the 5.75 to 1 ratio. The engine is a 255.33 cubic inch 4-cylinder with cylinders cast in pairs. The bore is 4 inches, and the stroke is 5 inches developing 35 brake horsepower. This truck has a magneto ignition. The AB was made in 1.5-, 2-, and 2.5-ton capacity ratings. There was a total of 383 Mack AB models built in 1915. Top Speed: 24 MPH

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