Peterbilt Motors Co. and Kenworth Trucks will begin selling the PACCAR MX-11 engine to its vocational and regional haul customers in the United States and Canada in January 2016. Newly introduced by PACCAR, the 11-liter engine is designed to produce up to 430 HP and 1,550 lb.-ft. of torque. The PACCAR MX-11 is a six-cylinder, 24-valve design and has double overhead camshafts along with high-pressure common rail fuel injection. Like the PACCAR MX-13, the engine block is constructed from compact graphite iron with vertical ribs to maximize strength while reducing noise levels. It is ideal for a wide range of applications, including regional haul, tanker, bulk haul, construction and refuse.
“The PACCAR MX-11 engine is a great addition to Peterbilt’s lineup of technologically advanced solutions focused on delivering the highest levels of quality, durability, performance, reliability, efficiency and overall return,” said Darrin Siver, Peterbilt General Manager and PACCAR Vice President. “The PACCAR MX-11 engine provides outstanding value in a lightweight and fuel efficient design, and will continue to exceed our high standards and our customers’ expectations.”
The PACCAR MX-11 engine (pictured above) will be available for Peterbilt’s flagship on-highway Model 579 and vocational Model 567 and the Kenworth T880, T680, T800 with FEPTO, and W900S, and will be built at PACCAR’s engine plant in Columbus, Miss.
“The PACCAR MX-11 fits a sweet spot for many of our customers, who need a lighter engine that provides ample horsepower and torque,” said Jason Skoog, Kenworth’s assistant general manager. “It is 400 lbs. lighter than 13-liter engines, and due to the weight savings, provides our customers a boost in payload capacity and fuel economy.”
Skoog said the engine has logged significant testing hours throughout North America and has delivered excellent results. “Drivers are telling us the engine has plenty of low-end power, and it’s a great match for applications requiring less than 450 HP.”
PACCAR launched the MX-11 engine in Europe in 2013 and has manufactured and installed over 10,000 of the engines in vehicles built by its DAF Trucks division. PACCAR has over 50 years of engine development and manufacturing expertise.
