Mack Trucks is seeking certification for its new MP13 engine to meet the California Air Resources Board (CARB) 2024 Omnibus requirements for low nitrogen oxide and particulate matter emissions standards.
The MP13 is Mack's 13-liter engine platform previously known as the MP8.
Although currently under fire from the Trump Administration, CARB’s current regulation requires a 75% reduction in NOx and 50% reduction in PM compared with existing U.S. Environmental Protection Agency (EPA) standards for engines in Class 8 highway trucks for engine model years 2024 through 2026.
Once certified, the new MP13 CARB 2024 Omnibus-compliant engines, rated 425 horsepower and 1,750 lb.-ft. of torque or 455 horsepower and 1,850 lb.-ft. of torque, will be available in the company’s new Pioneer Class 8 on-highway tractor.
“Mack will have a 13-liter engine that will be CARB 2024 Omnibus-compliant once certified, allowing Mack customers in California to have a fuel-efficient and more sustainable diesel engine to meet all of their highway application needs,” said Jonathan Randall, president of Mack Trucks North America. “At the same time that Mack is working to ensure its diesel customers have a durable, reliable highway truck, we also continue to invest and investigate other sustainable solutions, such as battery electric and hydrogen fuel cell power.”
Randall also hinted at the release of a battery electric version of the Mack Pioneer slated for orders beginning in 2026. The trucks, which target regional haul, drayage and hub-and-spoke operations, will have 300-plus miles of operating range and will be available as a day cab or 44-inch short sleeper.
“I am pleased to say that starting next year you will be able to order the Mack Pioneer as a battery electric truck using Proterra batteries and Mack’s proprietary eAxle” Randall said. “So we're very excited about that and very excited to get into the market in 2026.”
