Better Fuel Economy, New Power Rating, More Durability
With the launch of Kenworth’s new T680 Next Generation truck model, also comes the 2021 PACCAR MX-11 and PACCAR MX-13 engines, giving even better performance and efficiency to Kenworth’s Class 8 truck lineup.
Helping drive fuel efficiency improvements is a number of refinements that all come together to maximize performance.
The engines feature optimized combustion with multi-pulse fuel injection. A smaller, more efficient turbocharger boosts power and improves responsiveness. And an enhanced piston design has added features to reduce frictional losses. PACCAR’s next generation after-treatment system completes the system to further reduce particulates and NOx without sacrificing power or fuel economy.
The engines were updated for added reliability. An enhanced fully-encapsulated engine harness protects against the elements, while connections were reduced between the engine and vehicle. Inside the engine, several structural enhancements were added to strengthen components and optimize rigidity.
To make fuel filter changes more efficient, PACCAR now mounts primary and secondary fuel filters on the engine, instead of on the chassis. And, a 12 V fuel heater comes standard for improved cold weather performance.
Extended service intervals of up to 120,000 km for both the oil and fuel filter combined with major components warranty, which is 5 years or 800,000 km, results in best-in-class performance and service intervals.
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