Transit-Liner® HDX.
A comfortable ride. A commitment to safety.

The Transit-Liner® HDX is a transit-style commercial bus that’s designed for comfort on even the longest trips. 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 help accommodate up to 54 passengers. And of course, nothing is more important than Thomas Built’s high standards of safety, demonstrated by meeting and often exceeding FMVSS/CMVSS. All that, combined with one of the most extensive, coast-to-coast dealer networks, makes the HDX city and commercial bus an excellent, long-term, long-journey choice.

Transit-Liner® HDX Specs

Up to 54

Cummins® ISB 220-300 HP, ISL 260-300 HP
CNG – Cummins ISL G 250-280 HP

181″, 209″, 238″, 267″, 277″

Zonar V3 advanced telematics system

Up to 36,200 lbs.


  • 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


Decade after decade, Thomas Built Buses has followed one simple philosophy: design and build the kind of bus we’d want our own families 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/CMVSS for commercial 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
  • All steel construction


  • Wheelchair lift
  • Adjustable pedals
  • Air suspension driver’s seat
  • Air ride suspension
  • Remote control/heated mirrors
  • Reading lights
  • Various seat options available
  • LED light packages
  • Under body pass-through storage area
  • Overhead book racks
  • Tinted windows
  • Staggered passenger seating
  • Customizable paint designs
  • Video systems
  • LED destination signage
  • Various AC options
  • Lavatory
  • Radiant heat
  • Multiple flooring options
  • Zonar® telematics
  • Soft interiors
  • Air disc brakes


  • Exterior electrical access door
  • Streamlined electrical center for easy identification and access
  • Customer accessory module for aftermarket component hookup
  • 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



Transit-Liner® HDX Spec Sheet