Paccar is launching new power, torque and fuel-efficiency enhancements to its MX-13 and MX-11 engines for North America. The new engines will be available in Kenworth and Peterbilt trucks beginning in January 2017.
“The Paccar MX-13 and MX-11 engines are designed to deliver optimum performance, durability, fuel economy, and the lowest total cost of ownership for our customers,” said Landon Sproull, Paccar vice president. The news was presented at this week’s Management Conference & Exhibition (MCE), which ended Tuesday in Las Vegas.
Paccar increased the MX-13 engine’s output to 510 horsepower and 1,850 pounds-feet of torque and increased the MX-11 engine’s output to 430 horsepower and 1,650 pounds-feet of torque. The enhanced Paccar MX-11 engine also adds a new 335 horsepower and a 1,150 pounds-feet torque rating in the lower end of the power range. Paccar’s MX engines deliver peak torque at 900 rpm for the majority of engine ratings, supporting increased performance and driving flexibility.
Paccar designs MX engines to an industry-leading B10 life of one million miles. This means 90 percent of the Paccar MX-13 and MX-11 engines are expected to reach one million miles without the need for a major overhaul. Each Paccar MX engine also comes standard with factory-installed remote diagnostics to deliver proactive customer support. This translates into low cost of ownership and superior uptime for truck owners.
The new engines include a new single cylinder air compressor, variable displacement oil pump, and variable speed coolant pump, providing customers with fuel economy gains over the previous engine design. The latest Paccar MX-13 and MX-11 engines extend oil and fuel filter change intervals from 60,000 miles to 75,000 miles, a significant cost savings for customers over the life of the vehicle. Paccar engines now utilize a single canister aftertreatment system that reduces weight by 100 pounds, improves serviceability and lengthens service intervals.