Passenger Capacity
Up to 54

181″, 209″, 238″, 267″, 277″

Up to 36,200 lbs.

Detroit Diesel DD8
Cummins® ISB6.7 & ISL9
CNG – Cummins ISL & Cummins ISB6.7G

Zonar V3 advanced telematics system

Premier weight distribution for the long haul

The Saf-T-Liner® HDX and Saf-T-Liner® HDX CNG (Compressed Natural Gas) from from Thomas Built Buses, was built to tackle any road condition thrown at it. The HDX meets and exceeds FMVSS, with safety being of utmost importance. With driver comfort in mind, they have added many features like the standard tilt and telescoping steering wheel and optional adjustable pedals. Air conditioning, coach-style seating, and heavy-duty shock absorbers make for a pleasant ride for up to 90 passengers. Our unwavering commitment to the needs of every passenger, driver and customer has made Thomas Built a leader in the industry for over 90 years. With H.A. DeHart being New Jersey’s exclusive dealer for Thomas Built, you can be sure that support and service will always be there when you need it.

Safety Features

  • Meets or exceeds all State and Federal regulations
  • 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



  • 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

Drive-ability / Comfort

  • 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

Driver Visibility

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

Available Options

  • 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 with lap belts, with three-point belts or integrated child seats
  • LED light packages
  • Acoustical ceiling
  • Under body pass-through storage area
  • Tinted windows
  • Customer accessory module for aftermarket component hookup
  • Various A/C configurations available
HDX bus on street with blue sky and house behind it

Drivers controls panels and steering wheel of the HDX

Interior electronics inside the HDX control panel

SAF-T-LINER HDX Exterior camera

SAF-T-LINER HDX exterior side mirror

SAF-T-LINER HDX climate control