Daimler Adds Six Cummins Engine Options to 2027 Truck Lineup

Key Details Daimler Truck North America will expand powertrain choices for Freightliner and Western Star customers in 2027, offering six Cummins engines alongside in-house Detroit options. The lineup includes the B6.7 Octane gasoline engine, X10 and X15 diesel engines, B6.7 diesel, and L9N and X15N natural gas options. This marks the first gasoline engine Freightliner has offered in its history dating back to 1929. Why It Matters The B6.7 Octane is a game-changer for medium-duty fleets seeking gasoline simplicity without sacrificing torque. It delivers diesel-like torque, eliminates the need for diesel exhaust fluid and active regeneration, and improves fuel efficiency by 10% compared to competing gasoline engines. The engine is available for the Freightliner M2 106 and targets vocational, pickup and delivery, and urban applications. What's Next The B6.7 Octane order book opened March 9, with production scheduled for Q3 2026. The X10 engine replaces the L9 and X12, delivering up to 380 hp in medium-duty and 450 hp in heavy-duty applications. Its 48-volt electrical system ensures quick emissions-control heating during cold starts, supporting EPA 2027 nitrogen oxide compliance requirements.