ISL9 for Medium-Duty Truck (2013)


ISL9 for Medium-Duty Truck (2013)

A great track record of proven performance continues to improve with Cummins ISL9. The ISL9 continues to have the highest power density of any engine in its class. So whether you’re pulling a loaded dump truck out of the mud, driving a beverage truck across town or hauling fresh mix to a construction site, you’ve got the power to get the job done.

Better Performance.
The ISL9 features common technology with the Heavy-Duty ISX15 and ISX12 for exceptional performance. Common components include the XPI fuel system, a high-capacity Electronic Control Module (ECM) and the patented Cummins VGT™ Turbocharger from Cummins Turbo Technologies. Ratings range from 260-380 hp (194-283 kW), with 550 lb-ft of clutch engagement torque. Optional features include engine braking for better control, Rear-Engine Power Take Off (REPTO) and Front-Engine Power Take Off (FEPTO).


Better Cost of Operation.
We’ve refined the 2013 ISL9 to deliver up to 2% better fuel economy versus the 2012 model by adding an air intake throttle that makes the EGR system more efficient and modifying the VGT™ Turbocharger to make it more efficient as well. As a result, Cummins ISL9 meets the 2014 greenhouse gas (GHG) and fuel efficiency regulations a full year ahead of schedule. Even better is the fact that maintenance intervals and related costs remain virtually unchanged. This, together with better fuel economy, delivers a lower total cost of operation to ISL9 owners.

Better Reliability And Longevity.
Heavy-duty roller followers, bypass oil filtration and targeted piston cooling all contribute to longer service life in the toughest work environments. Replaceable wet liners make the ISL9 easier to rebuild. All this adds up to longer engine life, which helps with resale value when it’s time to trade.

While On-Board Diagnostics is new for the ISL9 in 2013, Cummins is using a highly reliable system proven effective in thousands of vehicles since 2007.

Better Coverage For Better Confidence.
Base engine warranty coverage includes parts and labor on warrantable failures with no deductible for 2 years/250,000 miles (402,336 km). A variety of extended coverage plans are available for the engine and aftertreatment system. Check with your Cummins distributor or dealer for details.

Considering a Cummins engine purchase? For more information including pricing and additional technical information, please contact your Cummins representative. If you need help finding a representative, the Cummins Sales and Service Locator tool can help.


Cummins PowerSpec is an electronic tool that makes it possible to tailor the operation of Cummins engines in every on-highway application.

Available for: On-Highway, Medium-Duty Truck

See ISL PowerSpec Engine Features


Advertised Horsepower 260-380 hp 194-283 kW
Peak Torque 720-1250 lb-ft 976-1695 Nm
Governed Speed 2100-2200 rpm
Clutch Engagement Torque 575 lb-ft 780 Nm
Number of Cylinders 6
System Weight 1912 lb 867 kg
    Engine (Dry) 1695 lb 769 kg
    Aftertreatment  System* 217 lb 98 kg

Product Finder Specifications

Certification Level EPA 2013
Power 260 - 380 hp / 194 - 283 kW
Torque 720 - 1250 lb-ft / 976 - 1695 N•m


Engine Model Advertised Horsepower (kW) Peak Torque lb-ft (Nm) @ rpm
ISL9 380 380 (283) 1250 (1695) @ 1400
ISL9 370 370 (276) 1250 (1695) @ 1400
ISL9 350 350 (261) 1000 (1356) @ 1400
ISL9 345 345 (257) 1150 (1559) @ 1400
ISL9 330 330 (246) 1000 (1356) @ 1400
ISL9 300 300 (224) 860 (1166) @ 1300
ISL9 270 270 (201) 800 (1085) @ 1300
ISL9 260 260 (194) 720 (976) @ 1300


VGT™ Turbocharger from Cummins Turbo Technologies – The patented design is widely recognized as the industry leader for performance. Electric actuation improves precision and responsiveness. The VGT Turbocharger also increases fuel economy and braking horsepower.

XPI Fuel System From Cummins Fuel Systems – Delivers superior performance regardless of engine rpm. Multiple injection events per cycle improve fuel efficiency and enable smoother, quieter operation.

Cummins Aftertreatment System from Cummins Emission Solutions – Proprietary system consists of a Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) technology for near-zero emissions.

Fleetguard® Fuel Filters, Lube Filters and DEF from Cummins Filtration – Fleetguard filters protect against corrosion and contaminants with innovative technology such as NanoNetTM media, which provides 10 times better protection than conventional fuel filters. High quality DEF is widely available at authorized Cummins and Fleetguard locations, as well as in bulk delivery.

Single High-Capacity Electronic Control Module (ECM) – A single ECM manages the engine and aftertreatment system for optimum performance and fuel efficiency.


  Miles / Kilometers Hours Months
Oil & Filter 15,000 mi
24,000 km
500 6
Fuel Filter 15,000 mi
24,000 km
500 6
Coolant Filter 15,000 mi
24,000 km
500 6
Overhead Adjustment 150,000 mi
240,000 km
5,000 48
Standard Coolant Change 60,000  mi
96,000 km
2,000 24
Coalescing Filter Every 3rd to 4th Oil Change Interval
DEF Filter 200,000 mi
320,000 km
6,500 -
Diesel Particulate Filter 200,000 mi
320,000 km
6,500 -

For complete maintenance information, please consult your Owner’s Manual or Operations and Maintenance Manual, available on QuickServe Online.

Brochures Available

Title Bulletin Number Request View  
Cummins Driver Lamp Identification Card 4971518 Request View  Download
Medium-Duty Coverage Brochure (2013) 4971397 Request View  Download
NRP - DPF There Is A Difference Brochure 5410774 Request View  Download
NRP - DPF There Is A Difference Brochure (French) 5410815 Request View  Download
NRP - DPF There Is A Difference Brochure (Spanish) 5410816 Request View  Download
ReCon DPF For EPA 2010 And 2013 ISL Engines Flyer 5410795 Request View  Download
ReCon DPF For EPA 2010 And 2013 ISL Engines Flyer - French 5410796 Request View  Download
ReCon DPF For EPA 2010 And 2013 ISL Engines Flyer - Spanish 5410797 Request View  Download