Daimler Expands 2027 Engine Options with New Cummins Powertrains

Key Details Daimler Truck North America is broadening its 2027 powertrain portfolio by adding multiple Cummins engine options to Freightliner and Western Star models. The expanded lineup includes the new B6.7 Octane gasoline engine, the X10 platform, and a redesigned X15 diesel, complementing Detroit's Gen 6 diesel engines across medium and heavy-duty applications. Why It Matters Fleets need multiple powertrain solutions as EPA 2027 emissions regulations approach. This partnership gives owners more flexibility in selecting engines that match their operational needs, fuel availability, and long-term cost strategies. The B6.7 Octane Advantage The new B6.7 Octane gasoline engine delivers up to 300 horsepower and 660 lb-ft of torque on standard 87-octane fuel. It offers up to 10 percent better fuel efficiency than comparable gasoline engines while eliminating diesel exhaust fluid and active regenerations, reducing maintenance complexity and costs. Performance and Service Built on Cummins' HELM platform architecture, the B6.7 provides diesel-like durability for demanding duty cycles including hilly terrain and cold environments. Oil service intervals extend to 15,000 miles, lowering downtime and maintenance expenses for fleets running medium-duty operations.