American-style Sidewall Flatbed Semitrailer for 42078 Mack Anthem




Photo by rcjoce.
Flatbed with Sidewalls semitrailer compatible with 42078 Mack Anthem set and other compatible MOCs.
The model consists of 674 parts.
The truck is a LEGO Technic (r) set 42078 Mack Anthem and is not included in this model.


  • Pendular suspension for different road surfaces
  • Raise and lower supports using mini Linear Actuator
  • Openable rear side with locks
  • Wheel chockers
  • Towing hitch for additional trailers and/or converter dollies.
  • Cargo surface (the "bed") is as low as possible for rigid construction and given wheels size.
  • Sliding tandem axles for better weight distribution/measurability balance
  • Modular building that allows extending the semitrailer by additional sections (+12L each). See the commented steps in the building instruction.
  • The main kingpin position allows coupling with 4-axles tractors (3-axles rear tandem).
  • The secondary possible position for the kingpin for tractors with deep central fifth wheel position.

  • 2019-06-17: added the second position for the kingpin and added some notes on how to make the trailer longer if necessary (modular building). Minor update to the parts list and LXF and PDF files both.

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Name American-style Sidewall Flatbed Semitrailer for 42078 Mack Anthem
Designer VoidSerpent
Designed 2019
Inventory 674 parts
Theme Technic > Model > Traffic
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