Kenworth has introduced a California Air Resources Board (CARB) compliant version of the PACCAR MX-13 engine for heavy-duty Kenworth models that meet 2024 requirements. The new PACCAR MX-13 CARB-compliant engine is available on select Class 8 models, including the T680, T880 and W990.
The PACCAR MX-13 CARB-compliant engine features new aftertreatment hardware that meets California low nitrogen oxide (NOx) emissions requirements. To meet CARB emissions requirements, the MX-13 CARB engine utilizes a twin-canister selective catalytic reduction (SCR) aftertreatment along with emission control systems while continuing to provide reliability and performance.
“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,” said Kevin Haygood, Kenworth assistant general manager for sales and marketing.
The PACCAR CARB-compliant MX-13 engine is available in two options: a 510-hp rating with 1,850 lb.-ft. of torque and a 455-hp rating with 1,650 lb.-ft. of torque. Both ratings support performance and drivability. Together with the PACCAR TX transmissions, and PACCAR DX rear axles, the PACCAR MX-13 CARB-compliant engine allows for an integrated low-NOx solution.
