Saf-T-Liner® HDX – School

Ideal weight distribution for the long haul.

Saf-T-Liner® HDX - Carolina ThomasBus 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 was built to handle them all. The HDX keeps the driver comfortable with features like the standard tilt and telescoping steering wheel and optional adjustable pedals, while air conditioning, coach-style seating and heavy-duty shock absorbers make the ride a perfectly pleasant one for up to 90 passengers. Of course, safety is most important to everyone, which is why the HDX meets or exceeds FMVSS. Their unwavering commitment to the needs of every passenger, driver and customer has made Thomas Built a leader for over 90 years. And with Carolina Thomas, there’s always support nearby when you need it.

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  • Passenger capacity
    Up to 90
  • Wheelbase
    181″, 209″, 238″, 267″, 277″
  • GVWR
    Up to 36,200 lbs.
  • Engine
    Cummins® ISB 220-300 HP, ISL 260-300 HP
  • Green option
    CNG – Cummins ISL G 250-280 HP with SCR Clean Diesel Technology

Saf-T-Liner® HDX Features - Carolina ThomasDRIVABILITY/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
  • Engine compartment completely insulated for reduced noise
  • 78″ headroom


  • 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


  • Wheelchair lift
  • Adjustable pedals
  • Air suspension driver’s seat
  • Air ride suspension
  • AM/FM radio/CD/PA
  • Remote control/heated mirrors
  • Various seat options available:
    • Bench seat without belts
    • Bench seat with lap belts
    • Bench seat with 3-point lap/shoulder belts
    • ISO latch seat
    • Integrated child seat
    • Coach-style seating
  • Child reminder system
  • Crossing arms
  • LED light packages
  • Acoustical ceiling
  • Underbody pass-through luggage storage area
  • Overhead luggage racks
  • Tinted windows
  • Staggered passenger seating
  • Customer accessory module for aftermarket component hookup

Saf-T-Liner® HDX Safety - Carolina ThomasDecade after decade, Thomas Built Buses has followed one simple philosophy: design and build the kind of bus that we’d want our own children to ride in. It’s a simple idea and it works. Passenger safety is the number one priority and every bus Thomas manufactures meets or exceeds all Federal Motor Vehicle Safety Standards for school buses.


  • Meets or exceeds FMVSS
  • 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


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