Peterbilt Expands Powertrain Options on 579, 567, 589

Peterbilt has announced that it will offer a new powertrain option for its 579, 567, and 589 tractor models, featuring the TX-12 Pro automated transmission paired with the Paccar MX-13 engine. This combination is designed to support up to 1,700 pound-feet of torque and is targeted at applications including dump trucks, tankers, and municipal vehicles. Peterbilt emphasizes that the integration of this powertrain enhances fuel efficiency and reliability, making it suitable for various on-highway and vocational uses. The TX-12 Pro transmission is engineered to accommodate engines with torque ratings up to 1,000 pound-feet and a maximum gross combination weight rating of 70,000 pounds. Key features of the transmission include dual power takeoff functionality, an extreme duty clutch for low-speed maneuvers, and a rock-free mode to assist in recovering from rough terrains. This transmission accompanied the introduction of medium-duty models in March 2024. Peterbilt's line-up offers versatility, with options for both high-performance and efficiency-focused CARB-compliant MX-13 engines. The company aims to provide superior fueling performance with new engine and transmission combinations catering to a range of operational needs. As an expert in the field of transportation, it's clear that Peterbilt's focus on optimizing engine and transmission compatibility is a strategic move that not only responds to market demands for higher efficiency but also adheres to increasingly stringent environmental regulations. The development of advanced powertrain technologies that improve fuel efficiency and reduce emissions is becoming essential in modern trucking. The TX-12 Pro and MX-13 conjunction will likely enhance operational performance for fleet operators while contributing to sustainability goals in the transportation sector. This innovation illustrates the industry's shift towards combining reliability with environmental responsibility.