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Cummins L9™ for 2017

Based on 25 years’ worth of development and improvement, with over 5 million units sold worldwide, the L9 leads the industry in performance, with the highest compression ratio and broadest power range of any engine in its category (260 hp to 380 hp) with up to 1250 lb-ft of peak torque. Built on a heavy-duty design, the L9 features piston sleeve wet-liners that allow for easier overhauls, providing longer engine life. The proven VGT® Turbocharger features a single sliding nozzle for dynamic airflow control, a heavy-duty bearing system for enhanced reliability and a modified exhaust manifold interface that improves durability and serviceability.

Customers looking to maximize fuel economy with the lowest possible cost of operation should select one of our efficiency ratings from 260 hp to 350 hp. L9 engines in this ratings family have a unique turbocharger, piston design, damper and aftertreatment system, all of which have contributed to up to a 15 percent fuel economy improvement since 2007.

Customers with vocational vehicles such as mixers, refuse haulers and dump trucks generally need more power and torque. L9 high-performance ratings for severe-duty and specialty applications range from 370 hp to 380 hp with up to 1250 lb-ft of peak torque.

Advertised Horsepower 260-380 HP 194-283 kW
Peak Torque 720-1250 LB-FT 976-1695 N•m
Governed Speed 2100/2200 RPM
Clutch Engagement Torque 500-575 LB-FT 678-780 N•m
Number of Cylinders 6
Engine Weight 1,695 LB 769 KG

 

Enhancements to the L9 for 2017 include the following:

  • A Single Module™ aftertreatment system that is up to 70 percent smaller and 30 percent lighter than the unit it is replacing; an enhanced dosing unit improves reliability while better thermal efficiency reduces regenerations and improves fuel economy
  • Improved oil-pan and sealing technology that virtually eliminates leaks
  • Improved lamp strategy that increases reliability
  • Enhanced protection over Stage 1 fuel filter’s service life

Key electronic features of the L9 include:

  • Vehicle Acceleration Management (VAM)
  • Gear Down Protection (GDP)
  • Road Speed Governor (RSG)
  • Cruise control
  • Connected Solutions™
    • Connected Diagnostics™
    • Connected Calibrations™*
    • Connected Tuning™*

*To be available at a later date.

Extended maintenance intervals help your customers achieve greater uptime while reducing costs.

Maintenance Item Miles Kilometers Hours
Oil and Filter 15,000 24,000 500
Fuel Filter 15,000 24,000 500
Coolant Filter 15,000 24,000 500
Standard Coolant 60,000 96,000 2,000
Overhead Adjustment 150,000 240,000 5,000
Coalescing Filter Every 3rd to 4th Oil Change Interval
DEF Filter 200,000 320,000 6,500
Particulate Filter Cleaning 200,000 320,000 6,500

 

The L9 Base Warranty and extended coverage options put confidence in writing for your customers. The L9 Base Warranty covers customers for 2 years/250,000 miles with 100 percent coverage with no deductible for:

  • Parts and labor on warrantable failures
  • Aftertreatment
  • Consumables used in the repair
  • All with no deductible

Extended Coverage plans for the L9 are available with terms up to 7 years/300,000 miles (482,803 km) on all registered parts and labor. Not only do these plans cover major engine systems, but they also cover components such as the turbocharger, water pump, fuel injectors, air compressor, fuel pump and many engine sensors.

Cummins warranties and Extended Coverage are good at over 3,500 authorized locations in North America. For details about the L9 for 2017, see cumminsengines.com or download the 2017 L9 For Truck Applications brochure.

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