SAF-T-LINER HDX - Activity Bus - Auto Safety House

Saf-T-Liner® HDX - Activity Bus

Video Tour


Pack up the local ski team, youth group or brass band. The Saf-T-Liner® HDX and Saf-T-Liner® HDX CNG (Compressed Natural Gas) from Thomas Built Buses were designed to make even the longest bus excursions feel like a quick jaunt. Heavy-duty shock absorbers take on any terrain, from mountain roads to narrow city streets, while the rear engine design keeps the ride nice and quiet for the driver. Options like coach-style seating, pass-through under body storage, overhead book racks and air conditioning add comfort for up to 90 passengers. Yet, for all the attention we pay to comfort, nothing is more important than our unwavering commitment to safety, demonstrated by our drive to meet or often exceed FMVSS. And with one of the most extensive dealer networks in the industry, there’s always support nearby when you need it.


  • 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





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    • 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



    • 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
    • Reading lights
    • Various seat options available: bench seat without belts, with lap belts, with 3-point belts; integrated child seats; or coach-style seating
    • Child reminder system
    • LED light packages
    • Acoustical ceiling
    • Underbody pass-through storage area
    • Overhead book racks
    • Tinted windows
    • Staggered passenger seating
    • Customizable paint designs
    • Video systems*
    • Commercial bus windows
    • Customer accessory module for aftermarket component hookup

*Some options available only through dealerships.






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Decade 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 our number one priority and every activity bus we manufacture meets or exceeds all Federal Motor Vehicle Safety Standards for Multi-Function School Activity Buses (MFSAB).


    • 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






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Video Tour


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Coming Soon