Thomas Built Buses Debuts Detroit DD8 Engine at STN EXPO



HIGH POINT, N.C. – Thomas Built Buses, along with Detroit, will feature the new Detroit DD8 Medium-Duty Engine for the first time in the pupil transportation industry at the STN Expo Tuesday, July 11 in Reno, Nev.


The Detroit DD8 engine is a 7.7L in-Line 6-cylinder medium duty engine with specific development for the Thomas Built Buses Saf-T-Liner® HDX. It boasts a horsepower range of 260-300HP and a torque range of 660 – 860Lb-ft.

The DD8 will decrease a fleet’s total cost of ownership with longer maintenance intervals and improved fuel efficiency.  In addition, vehicles equipped with the DD8 will feature Detroit Connect™ Virtual Technician℠ remote diagnostic service.  Virtual Technician helps fleets make informed maintenance decisions, so they only service their vehicles when needed. In case a vehicle needs to go into the shop, Virtual Technician, with the backing of the experts at the Detroit Customer Support Center, provides access to the most in-depth information available to get the vehicle repaired as accurately and quickly as possible, improving uptime.

“We are excited to introduce the Detroit DD8 engine to the pupil transportation market,” said Caley Edgerly, president and CEO of Thomas Built Buses. “We are hearing a lot of excitement for the upcoming Detroit™ DD5™ engine suited for our Saf-T-Liner® C2.  Now, with the DD8 engine coming on board, our customers can experience industry-leading power, performance and fuel efficiency, as well as the advanced telematics of Virtual Technician for the Saf-T-Liner C2 and now the Saf-T-Liner HDX.”

The Detroit DD8 will be available for order in 2018.

For more information, contact your local Thomas Built Buses dealer.

About Thomas Built Buses
Founded in 1916, Thomas Built Buses is a leading manufacturer of school buses in North America. Since the first Thomas Built bus rolled off the assembly line, the company has been committed to delivering the smartest and most innovative buses in North America. Learn more at or at

Thomas Built Buses, Inc., headquartered in High Point, N.C., is a subsidiary of Daimler Trucks North America LLC, the largest heavy-duty truck manufacturer in North America and a leading manufacturer of class 4-8 vehicles. Daimler Trucks North America produces and markets commercial vehicles under the Freightliner, Western Star and Thomas Built Buses nameplates. Daimler Trucks North America is a Daimler company.

About Detroit
Detroit offers a complete line of heavy-duty diesel engines, axles, transmissions, safety systems and connected vehicle services for the commercial transportation industry in both the on-highway and vocational markets.  Detroit™ products are sold and serviced through a network of hundreds of locations throughout North America. Detroit™ is a brand of Detroit Diesel Corporation, a subsidiary of Daimler Trucks North America LLC.