Mack B Model
Manufacturer Mack Trucks
Production Worldwide
Class Truck
Body style(s) Truck (bonneted cab)
Engine(s) Thermodyne 707(11.6L) inline 6 or 255hp V8
Transmission(s) Mack duplex (5x2), triplex (5x3) or quadruplex (5x4) manual transmissions

The Mack B Model was a heavy truck produced by Mack Trucks between 1953 and 1966.[1] It is perhaps the best known classic Mack truck and many still survive to this day in both restored and non restored conditions. Some owners still use them daily for both business and leisure. They were available as fire trucks, school buses and in a variety of truck configurations. The B model was replaced by the R Model.[2]

Model numbers & lettersEdit

  • B1x -
  • B2x -
  • B3x -
  • B4x -
  • B5x -
  • B6x -
  • B7x -
  • B8x -

Chassis letter guide:

B - school bus chassis
C - flat face cowl for the addition of a delivery body
E - built for export
F - fire truck chassis
L - light weight or weight reduced by using aluminum components
P - platform chassis (single axle straight truck)
R - right hand drive. This designation was started in 1964 but right hand drive available
S - six wheel chassis (tandem axle)
T - tractor chassis
X - severe or extreme service chassis

B model registryEdit

See alsoEdit


External linksEdit

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