Mack Adds Mack® MP8® 505C+ to Engine Lineup

GREENSBORO, NC (Aug. 21, 2014) – Designed for customers seeking a powerful high-performing 13-liter engine, Mack Trucks announced today its newest powertrain offering – the Mack® MP8® 505C+. 

Built on the 13-liter MP8 engine platform, the MP8 505C+ offers 505 horsepower and 1,860 lb.-ft. of torque. The MP8 505C+ delivers the maximum amount of torque in all gears to maximize fuel efficiency, as well as the customer’s return on investment. The MP8 505C+ is ideal for long-haul applications and those requiring the muscle to easily conquer mountainous terrain. 

“This engine is all about power and performance,” said Roy Horton, Mack director of product marketing. “The MP8 505C+ is an excellent option for customers seeking a lower-displacement engine, which saves weight and improves fuel economy, but one that can also readily manage heavy loads across rigorous terrain.”

The MP8 505 C+ is available in the Mack Pinnacle™ Axle Forward and Axle Back models. The Pinnacle model is designed for durable over-the-road hauling with a Mack Advantage™ chassis to optimize payload. The Pinnacle model delivers near-zero emissions through the combination of the MP8 engine and Mack ClearTech™ SCR technology.

The MP Engine Series also is designed with fewer parts, offering operators an engine that’s built to last. 

“The MP8 505C+ builds on Mack’s longstanding commitment to customizing solutions to best fulfill a customer’s needs,” Horton said. “The MP8 505C+ offers the power you need packaged in a fuel-efficient and cost-effective way.”

The Mack MP8 505C+ is available now for order and delivery.

Mack MP8

Mack Trucks introduces the Mack® MP8® 505C+ engine. The MP8 505C+ is ideal for long-haul applications and those requiring the power to easily conquer mountainous terrain.

Mack® trucks are sold and serviced through an extensive distribution network in more than 45 countries. Mack trucks, diesel engines and transmissions sold in North America are assembled in the United States. Mack manufacturing locations are certified to the internationally recognized ISO 9001 standard for quality, ISO 14001 standard for environmental management systems and OHSAS 18001 standard for health and safety management systems. Mack is also a proud sponsor of Share the Road, an American Trucking Associations public information campaign aimed at enhancing the safety of our nation's roadways.

Mack Trucks is part of the Volvo Group, which is driving prosperity through transport and infrastructure solutions, offering trucks, buses, construction equipment, power solutions for marine and industrial applications, financing and services that increase customer uptime and productivity. Founded in 1927, the Volvo Group is committed to shaping the future landscape of sustainable transport and infrastructure solutions. The Volvo Group is headquartered in Gothenburg, Sweden, employs almost 100,000 people and serves customers in more than 190 markets. In 2020, net sales amounted to about $36.8 billion. For more information, please visit