The EPA 2021 L9 Productivity Series engine is the next-generation option with unrivalled power, reliability, and durability. Not only do these engines boast class-leading power and torque ratings and an unmatched power-to-weight ratio for the toughest jobs, but they also offer up to 1.5% more fuel efficiency than 2017 models. The L9 Performance Series engine has been improved even further, offering a fuel economy improvement of up to 3.5%. Get heavy-duty capability in a medium-duty package like never before with the Cummins L9™ engine.
The Cummins L9™ engine has been redesigned from the base engine up to help improve fuel efficiency, boasting a decrease in frictional losses and optimized combustion. With a new piston design, camshaft valve timing and reduced water pump speeds, parasitic losses are reduced for an even more fuel-efficient experience.
This impressive powertrain was designed with uptime in mind, featuring synchronized and extended recommended engine maintenance intervals to help fleets go longer between oil drains and oil and fuel filter changes. Extending these maintenance cycles not only helps save money but also makes for fewer trips to the repair shop, so you can focus on what matters most: keeping your business running smoothly.
With the XPI Fuel System from Cummins Fuel Systems, you can get even better performance in lower engine rpm ranges. And when it comes to emissions solutions, the Single Module Aftertreatment from Cummins Emission Solutions is up to 70 percent smaller and 30 percent lighter than previous after-treatment units and also has improved heat management for better fuel economy and less periodic maintenance.
The advanced fleetguard filters from Cummins Filtration feature NanoNet media for 10 times better protection against corrosion and contaminants. Plus, there’s a single high-capacity Electronic Control Module (ECM) for faster processing of more information, giving you fully integrated control over the engine and aftertreatment system for optimized performance. Get heavy-duty capability in a medium-duty package with the reliable performance of the Cummins L9 engine.
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