“Paccar MX engines were engineered for reliability and fuel economy in a comfortable, quiet, and powerful package," Scott Newhouse, Peterbilt's chief engineer, said. "The new CARB low NOx PACCAR MX-13 engine offers the same great features with a reduced carbon footprint for our customers.”
According to the two truckmakers, both Paccar subsidiaries, the CARB low NOx compliant Paccar MX-13 engine combines its diesel powertrain with next-generation technology. It is available in two ratings with a flat torque curve, providing performance across a wider range of RPMs for excellent drivability and fuel economy. This includes a high-performance 510-horsepower rating with 1,850 lb.-ft. of torque and an efficiency-focused rating of 455 horsepower and 1,650 lb.-ft. of torque between 900 and 1,325 rpm.
“Our customers are looking for better options to successfully navigate the complexities of the evolving regulatory landscape and Kenworth models equipped with PACCAR’s MX-13 CARB-compliant engine achieve compliance with stringent emissions regulations while also delivering a solution that drives increased engine efficiency and enhanced fuel economy,” Kevin Haygood, Kenworth assistant general manager for sales and marketing, said.