12-Year Heavy-Duty Transit Bus.

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Safe and efficient transit solutions.

Xcelsior® is the industry-leading best-in-class bus that is proven to be the most advanced heavy-duty transit vehicle available in North America.

  • 32-61 Seats

    With 2 wheelchair locations

  • Proven platform

    Over 14,000 Xcelsior® models delivered across North America

The path to transitioning fleets to low and zero-emission.

Updating your heavy-duty transit bus fleets with clean diesel technology, diesel-electric or compressed natural gas will have air quality benefits to your community as well as the opportunity for a solid transition to responsibly deploy reliable zero-emission battery-electric and fuel cell-electric buses.

Leading innovation in mobility for over 90 years.

  • 350-400 miles

    CNG provides an extended range of 350-400 miles.

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    Clean-diesel technology reduces diesel particulate matter (PM) by 90% and oxides of nitrogen (NOx) by 95%.

  • 8% Fuel Savings

    Diesel-electric hybrid buses deliver up to 8% in fuel savings.

Compressed Natural Gas

New Flyer’s heavy-duty compressed natural gas (CNG) transit bus can meet your transit agency’s low-emission needs today. CNG propulsion emits 90% less nitrogen oxide (NOx) than diesel engines – and meets particulate matt­er levels without the need of a filter. It also requires fewer infrastructure resources than battery-electric buses, making it a great option for transitioning fleets to low and zero-emission.

With nearly 13,000 CNG buses on the road in North America, New Flyer has been your CNG leader for 25 years and offers unmatched expertise in the design and deployment of low-emission transit buses for cleaner air and healthier communities.

How it works.

CNG is made by compressing natural gas, storing it in cylindrical tanks placed on the roof, and distributing to engine systems through a main fuel supply line. CNG fuel systems transfers high-pressure natural gas from the storage tank through the main fuel supply line to a fuel block manifold and filter.  The natural gas pressure level is reduced using a pressure regulator to be compatible with the engine fuel injection system. Fuel is then introduced into the intake manifold or combustion chamber.

  • 40′
  • 60′

Diesel-Electric Hybrid

Over the past 20 years New Flyer has supplied more hybrid buses to the North American industry—in more configurations—than any other manufacturer.

Hybrid technology bridges the gap between traditional mechanical engines and the target of zero-emission propulsion systems, including reductions of up to 50% in NOx and 90-100% in particulate matter levels.

Xcelsior® diesel-electric  achieved the best fuel economy ever recorded at Altoona: 5.88 mpg, delivering up to 8% in fuel savings.

Clean Diesel

New Flyer embraced regulations more than 20 years ago and developed clean diesel buses that are equipped with the latest engine and after-treatment technology from Cummins Inc. to reduce diesel particulate matter (PM) by 90% and oxides of nitrogen (NOx) by 95%.

New Flyer continues to meet or exceed emissions regulations, and will continue innovation of the diesel engine to make it lighter, more reliable, powerful, and fuel-efficient to serve growing cities with safe and efficient public transportation.

Quick measurements.

Diesel Height
Hybrid Height
CNG Height
Tire Size
Wheelchair Locations
Diesel Curb Weight
Hybrid Curb Weight
CNG Curb Weight
Approach Angle
Departure Angle
Breakover Angle
Diesel Engine
Hybrid Engine
CNG Engine
Fuel Tank
229” front / 293” rear
24,500 lb
27,750 lb
40,765 lb
27,000 lb
29,100 lb
42,100 lb
27,000 lb
29,600 lb
43,300 lb
12º (front) 9º (back)
Cummins L9
Cummins L9
Cummins L9
Cummins B6.7
Cummins B6.7
Cummins B6.7
Cummins L9 CNG
Cummins L9 CNG
Cummins L9 CNG
Type 4 Natural Gas Vehicle Fuel Cylinder: 3300 SCF at 3600 psi service pressure
Type 4 Natural Gas Vehicle Fuel Cylinder: 3300 SCF at 3600 psi service pressure
Type 4 Natural Gas Vehicle Fuel Cylinder: 3300 SCF at 3600 psi service pressure