Fleet managers are always looking for powertrain combinations that deliver both performance and compliance. Consequently, the news that the Allison 4000 Series transmission is now available with the PACCAR MX-13 engine is particularly noteworthy. This new pairing offers fleets a powerful, efficient, and reliable option that is also compliant with the latest emissions regulations. The integration provides a factory-built solution that saves time and ensures optimal performance from day one.

The PACCAR MX-13 engine is known for its durability and fuel efficiency, while the Allison 4000 Series transmission is a workhorse in the heavy-duty sector. Together, they create a robust powertrain suitable for various demanding applications. This new combination is CARB-compliant, which is crucial for fleets operating in California and other states that have adopted similar emissions standards. This availability gives fleet professionals more choices when configuring new trucks to meet specific operational needs while also adhering to strict environmental requirements. For more information, check out the press release from Allison Transmission on July 30, 2025, which details the specifics of this new offering for Kenworth T880 and Peterbilt Model 567 truck models. Ultimately, this partnership is a great example of OEM collaboration designed to provide superior products.

Also read: Multi-million dollar award signals strong support for Cummins hydrogen engines