Peterbilt Motors Company now has a new CARB low nitrogen oxide (NOx) compliant PACCAR Company MX-13 engine available for the 579, 567 and 589 models.
This engine meets the CARB Omnibus Regulation and features redesigns of internal hardware and the after-treatment system to effectively reduce NOx emissions. CARB, aka California Air Resources Board, is an agency of the government of California that aims to reduce air pollution. While not a federal standard, it’s the standard to which many other states look toward.
The larger volume aftertreatment system includes an innovative compact twin assembly featuring a 48-volt generator located in the flywheel housing, and an electrical heater located in the inlet to provide lower NOx output.
The internal hardware now features a larger volume mixer, a longer selective catalytic converter (SCR), and an improved and more durable NOx sensor design with increased longevity for improved uptime. These features allow Peterbilt customers to achieve increased engine efficiency and fuel economy while continuing to meet stringent CARB emissions regulations.
The CARB low NOx compliant PACCAR MX-13 engine combines the proven 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.
“PACCAR MX engines were engineered for reliability and fuel economy in a comfortable, quiet, and powerful package. The new CARB low NOx PACCAR MX-13 engine offers the same great features with a reduced carbon footprint for our customers,” said Scott Newhouse, the Chief Engineer at Peterbilt.
Featuring a renowned global reputation, Peterbilt, a PACCAR Company, offers a complete lineup of diesel, natural gas, and electric vehicles. Company information is available at www.peterbilt.com.
Peterbilt Models 579, 567, and 589 with the CARB low NOx compliant PACCAR MX-13 engine are available for orders now. For more information visit your nearest Peterbilt dealer or https://paccarpowertrain.com/products/carb-mx-13/.