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Photo of Saf-T-Liner HDX CNG bus

Saf-T-Liner® HDX CNG

Better drivability
and a good choice
for the future.

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 2,000 CNG buses on the road.

Versatile, customizable, and 2010 emissions-ready.

With a tough build and the largest windshield in its class for better driver visibility, it's no wonder the HDX is the long-route leader. The HDX can take on all of your school equipment, and up to 90 passengers, and it is completely customizable to satisfy your demands. Add-ons like air conditioning, pass-through underbody storage and coach-style seating keep everyone comfortable, no matter the distance.

Fast Facts

Seating Capacity
  • 90
GVWR
  • 36,200 lbs.
Transmission
  • Allison
Engine
  • Cummins ISL G (compressed natural gas) (250 hp, 280 hp)
  • 2010 emissions-ready
  • 8.9 liter displacement
Wheel Cut
  • 45 degree
Warranty
  • Five-year/100,000 miles

CNG Fuel Tank and Cage Feature Description

  • Type III Tanks made of polycarbon wrap and seamless aluminum
  • Up to 4 fuel tanks (60 gallons equivalent)
  • Excellent crash protection cage
  • Unsurpassed driving range
  • Saddle ends for easy rotation

Customer Benefits

Easy maintenance access to tanks
Lengthens intervals between oil changes vs. standard fuel options
Lowers maintenance costs with maintenance–free aftertreatment
Improves torque throughout operating range
Improves efficiency
Maintains pass-through luggage compartment availability
80% parts commonality with Cummins ISL engine
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  • 360 degree virtual tour

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