School Buses Type D Saf-T-Liner HDX

Bus routes come in all shapes and sizes. Short and hilly, long and bumpy or all of the above. The HDX and HDX CNG (Compressed Natural Gas) from from Thomas Built Buses was built to handle them all. Keep 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.

Saf T Liner HDX School Bus - buswest

Body Specifications

Passenger capacity

Up to 90


Up to 36,200 lbs.


181", 209", 238", 267", 277"

Engine Options

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

Interior HDX School Bus - Buswest Thomas Saf T Liner School Bus - Buswest


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 bus we manufacture 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

Four-wheel anti-lock brakes

42" x 47" glass-paneled rear emergency door

Driver Visibility

Large two-piece curved bonded windshield

Specially developed integrated mirror system


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

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

Crossing arms

LED light packages

Acoustical ceiling

Underbody pass-through storage area

Overhead book racks

White roof

Tinted windows

Staggered passenger seating

Customer accessory module for aftermarket component hookup

Thomas HDX CNG School Bus Type D - Buswest

HDX CNG Option

Compressed Natural Gas (CNG) is a fossil fuel substitute for gasoline and diesel. It's cleaner. And more environmentally friendly. Based on the design of our original Saf-T-Liner® HDX, Thomas Built launched the Saf-T-Liner HDX CNG nearly 20 years ago. Since then, we've put more than 1,300 CNG buses on the road.

Versatile, customizable, and current emissions-ready.

Type D School Bus - Saf-T-Liner EFX

When it comes to our schools, every efficiency counts. That's why we've built so many into our updated Saf-T-Liner® EFX. Seating for up to 90 passengers and a wider loading aisle make this bus ready for whatever the school year brings. The cockpit is designed for driver comfort and safety with ample legroom and optimized access to controls. Plus, our engine cover allows for quick, easy and tool-free access to the engine, fluids and belts, keeping routine maintenance time to a minimum. The Saf-T-Liner® EFX is a front-engine, transit-style bus that is versatile and an excellent value. At Thomas Built we listen to our drivers, mechanics and customers to help us develop the best buses on the road. And with one of the most extensive dealer networks in the industry, there's always support nearby when you need it.

Thomas Saf T Liner EFX School Bus - Buswest

Body Specifications

Passenger capacity

Up to 90


Up to 36,200 lbs.


136", 155", 174", 193", 212", 231"

Engine Options

Cummins® ISB 220-260 HP

Call us now about our inventory 800-458-9199 to buy your school bus(es) or email us