Saf-T-Liner® HDX. Ideal weight distribution for the long haul.


School bus routes come in all shapes and sizes: short and hilly, long and bumpy or all of the above. The Saf-T-Liner® HDX from Thomas Built Buses is built to handle them all. This model is designed to keep drivers comfortable, with features like standard tilt and telescoping steering wheel and optional adjustable pedals. It offers a pleasant ride for up to 90 passengers with air conditioning, coach-style seating and heavy-duty shock absorbers. And because safety is important to everyone, each HDX school bus meets or exceeds FMVSS and CMVSS. Finally, to help you keep your HDX buses safe, efficient and comfortable, Thomas Built developed one of the most extensive dealer networks in the industry.

  • Up to 90
  • 181″, 209″, 238″, 267″, 277″
  • Up to 36,200 lbs.
  • Detroit Diesel DD8 260 – 300 HP |Cummins® ISB 220-300 HP, ISL 260-300 HP CNG – Cummins ISL G 250-280 HP


  • Ergonomic driver’s dash and switch panel
  • Easy-to-read offset gauge cluster
  • Tilt and telescoping steering wheel
  • Suspended brake and accelerator pedals
  • Foot rest
  • 45-degree steering angle
  • Sound isolator over engine
  • 78″ headroom


  • Wheelchair lift
  • Adjustable pedals
  • Air suspension driver’s seat
  • Air ride suspension
  • Air disc brakes
  • AM/FM radio/CD/PA
  • Remote control/heated mirrors
  • Reading lights
  • Various seat options available: bench seat without belts, with lap belts, with three-point belts; integrated child seats or coach-style seating
  • LED light packages
  • Acoustical ceiling
  • Under body pass-through storage area
  • Overhead book racks
  • Tinted windows
  • Customer accessory module for aftermarket component hookup

  • Exterior electrical access door
  • Streamlined electrical center for easy identification and access
  • Fuse relay centers provide circuit protection and easy diagnostics
  • Front access panel
  • Drop-frame design at engine location
  • Engine compartment accessible via three doors plus access panel
  • Easy access to fluids
  • Display of fault codes in dash
  • Lights equipped with plug-in connectors

  • Large two-piece curved bonded windshield
  • Specially developed integrated mirror system


Decade after decade, Thomas Built Buses has followed one simple philosophy: design and build the kind of school bus we’d want our own children to ride in. It’s a simple idea and it works. Passenger safety is our number one priority and every bus we manufacture meets or exceeds all FMVSS and CMVSS for school buses.

  • Meets or exceeds FMVSS/CMVSS
  • Roof bows extend to bottom of side panels
  • Double rear bumper with exterior contoured steel bumper
  • Double-bolted body mounting clips
  • Fuel tank mounted between frame rails