Mack Unveils EPA 2027-Ready MP13 Engine with 540 HP, 3% Fuel Savings

Key Details Mack Trucks revealed its EPA 2027-compliant MP13 engine at the Advanced Clean Transportation Expo in Las Vegas on May 5. The engine delivers up to 540 horsepower and 1,950 pound-feet of torque, marking Mack's most powerful and efficient offering to date. Orders begin in August with production targeted for model year 2028 vehicles. Where You'll Find It The new MP13 will be available across four Mack tractor models: Pioneer, Anthem, Granite, and Keystone. Fleet buyers can expect up to 3% fuel economy improvements on Pioneer, Anthem, and Granite models, with Keystone owners seeing 6% better efficiency compared to the Pinnacle. Why It Matters The EPA 2027 regulations require NOx emissions to drop from 200 milligrams per horsepower-hour to 35 mg/hp-hr. Mack achieved these savings through a graphite iron engine block, improved piston wave patterns, and an enhanced aftertreatment heater system. Senior Vice President Govi Kannan emphasized that competitive fuel economy improvements directly reduce your total cost of ownership. Industry Context Mack's move follows sister company Volvo Trucks North America, which launched its EPA 2027-compliant D13 engine on May 4. Both engines represent the next generation of compliant powertrains available to carriers ahead of regulatory deadlines.