PACCAR MX-13 CARB compliant engine available in Peterbilt 579, 567, 589

PACCAR MX-13 CARB compliant engine available in Peterbilt 579, 567, 589

The PACCAR MX-13 diesel engine meets the CARB Omnibus Regulation and is available in high performance or efficiency focused ratings.

Peterbilt announced that PACCAR’s new CARB low nitrogen oxide (NOx) compliant PACCAR MX-13 engine is available in the Models 579, 567 and 589. Peterbilt said this engine meets the CARB Omnibus Regulation and features redesigns of internal hardware and the aftertreatment system to effectively reduce NOx emissions.

The larger volume aftertreatment system includes a compact twin assembly featuring a 48-volt generator located in the flywheel housing, and an electrical heater located in the inlet, which Peterbilt said provides lower NOx output. The company adds the internal hardware now features a larger volume mixer, longer selective catalytic converter (SCR) and an improved and more durable NOx sensor design with increased longevity for improved uptime.

The engine 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-HP rating with 1,850 lb.-ft. of torque and an efficiency focused rating of 455-HP 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, Peterbilt chief engineer.

Peterbilt Models 579, 567 and 589 with the CARB low NOx compliant PACCAR MX-13 engine are available for orders now.

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