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    1. Trucking
    2. Heavy-Duty Trucks, Class 7 & 8, >26,000 GVW

    Kenworth Offers CARB Compliant Engine

    June 12, 2024
    Paccar MX-13 will be available for Kenworth T680, T880, and W990 trucks.
    Related To: Kenworth Truck Company
    Kenworth
    The Paccar MX-13 will be available in a CARB-compliant version.
    The Paccar MX-13 will be available in a CARB-compliant version.

    A California Air Resources Board (CARB) compliant version of the Paccar MX-13 engine is available for use in Kenworth heavy trucks that meet 2024 requirements.

    The Paccar MX-13 CARB-compliant engine features new aftertreatment hardware that meets stringent California low nitrogen oxide (NOx) emissions requirements. The diesel engine utilizes a twin-canister selective catalytic reduction (SCR) aftertreatment along with more optimized emissions controls systems while continuing to provide excellent reliability, performance, and efficiency, according to the company.

    More on emissions and heavy trucks

    “Our customers are looking for better options to successfully navigate the complexities of the evolving regulatory landscape,” said Kevin Haygood, assistant general manager for sales and marketing, in a statement, “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,”

    The CARB-compliant MX-13 is available in two options: a 510-horsepower rating with 1,850 lb.-ft. of torque and a 455-horsepower rating with 1,650 lb.-ft. of torque. Together with the Paccar TX transmissions and Paccar DX rear axles, the MX-13 CARB-compliant engine allows for an industry leading efficient and integrated low-NOx solution, according to the company.

    The new CARB-compliant engine is available to order now on select Class 8 models, including the T680, T880, and W990. Production will begin in the fourth quarter of 2024.