Peterbilt now offers a CARB-compliant PACCAR Mx13 engine for its Models 579, 567, and 589. This next-generation engine significantly reduces NOx emissions while maintaining performance and fuel efficiency. The MX13 meets the stringent CARB Omnibus Regulation through key design upgrades to both internal components and the aftertreatment system.
MX13 Engine: Design Innovations for Lower Emissions
Peterbilt’s commitment to environmental responsibility is evident in the redesigned MX13 engine. A larger aftertreatment system, featuring a compact twin assembly with a 48-volt generator in the flywheel housing and an electrical heater at the inlet, significantly reduces NOx output. Internal improvements include a larger volume mixer, a longer selective catalytic converter (SCR), and a more durable NOx sensor for extended uptime and reliability.
These enhancements allow the MX13 to deliver increased fuel economy and operational efficiency while adhering to CARB’s strict emissions standards. This balance of power and environmental consciousness makes the MX13 a compelling choice for environmentally conscious fleet operators.
Performance and Efficiency of the PACCAR MX13
The CARB compliant MX13 seamlessly blends proven diesel technology with cutting-edge advancements. Available in two ratings, the engine boasts a flat torque curve, optimizing performance and fuel efficiency across a broad RPM range. The high-performance rating delivers 510 horsepower with 1,850 lb.-ft. of torque, while the efficiency-focused option provides 455 horsepower and 1,650 lb.-ft. of torque between 900 and 1,325 RPM.
This versatility ensures exceptional drivability and fuel economy in diverse operating conditions, further enhancing the MX13’s appeal. Whether prioritizing maximum power or optimal fuel efficiency, the MX13 offers a tailored solution.
MX13: Reliability and Reduced Carbon Footprint
Scott Newhouse, Peterbilt’s chief engineer, emphasizes the MX engine family’s reputation for reliability, fuel efficiency, and driver comfort. The new CARB compliant MX13 upholds these qualities while minimizing environmental impact. By integrating advanced emissions control technology, Peterbilt provides a solution that benefits both operators and the environment.
The combination of proven reliability, enhanced fuel efficiency, and reduced emissions positions the MX13 as a leader in heavy-duty engine technology. This commitment to continuous improvement reinforces Peterbilt’s dedication to providing customers with high-performing, environmentally responsible solutions.
Availability of the CARB Compliant MX13
Peterbilt Models 579, 567, and 589 equipped with the CARB compliant PACCAR MX13 engine are currently available for order. For detailed information and specifications, visit your local Peterbilt dealer or the PACCAR Powertrain website. Peterbilt’s commitment to uptime is further supported by its extensive dealer network and innovative aftermarket services.
