ISX11.9 Well Servicing Applications (EPA 2010)

Power 310 - 425 hp
231 - 317 kW
Torque 1150 - 1650 lb-ft
1559 - 2237 N•m
Certification EPA 2010


Oil and Gas Engines Well Servicing

Available Regions

US and Canada,  Russia,  Africa & Middle East,  Mexico,  Philippines,  Singapore,  Brazil,  Bolivia,  Uruguay,  Philippines,  Argentina,  Colombia,  Central America,  Europe,  Japan,  Korea


A Perfect Fit. Every time. ISX11.9 for EPA 2010.

Superior driveability is now available in the industry’s most compact 10- to 13-liter engine. Cummins ISX11.9 EPA 2010 is a clean-sheet design that delivers everything you want – strong pulling power, excellent throttle response and high fuel economy numbers with legendary Cummins reliability and durability.

A high power-to-weight ratio and strong clutch engagement torque make it ideal for severe-duty applications like refuse haulers, dump trucks and mixers. The horsepower range and exceptional fuel efficiency are an ideal match for local and LTL trucking operations.

Every major component and system is designed and built by Cummins for total quality control, and the ISX11.9 shares technology with the proven ISX15 engine.

The ISX11.9 doesn’t just replace the ISM. It surpasses it, in every way.

For more information, view the ISX11.9 spec sheet.

Advertised Horsepower 310-425 hp (231-317 kW)
Peak Torque 1150-1650 lb-ft (1559-2237 N•m)
Governed Speed 2100 rpm
Clutch Engagement Torque 700 lb-ft (949 N•m)
Number of Cylinders 6
Oil System Capacity 12 U.S. gallons (45.4 liters)
System Weight 2,812 lb (1,276 kg)
Engine (Dry) 2,590 lb (1,175 kg)
Aftertreatment System* 222 lb (101 kg)

*Increase over standard muffler and does not include chassis OEM-supplied components.

XPI Fuel System – The proven technology of the XPI common-rail fuel system delivers a precise quantity of fuel at ultra-high pressures. This, together with more robust electronic engine controls, enables multiple injection events per cycle. Flexibility in injection timing increases fuel economy and performance while decreasing exhaust emissions.

Cooled EGR – This next-generation system lowers combustion temperatures for reduced emissions and optimized fuel economy.

Fully Integrated Electronic Controls – A single higher-capacity Electronic Control Module (ECM) controls everything from air intake to exhaust aftertreatment for peak performance and near-zero emissions.

Cummins Aftertreatment System – The proven Cummins Particulate Filter reduces particulate matter by over 90%. In 2010 it is combined with Cummins Selective Catalytic Reduction (SCR) to meet emissions standards while maintaining best-in-class performance, reliability and durability. Cummins SCR technology has been proven in over 200,000 European vehicles and uses Diesel Exhaust Fluid (DEF) to achieve NOx emissions at near-zero levels. DEF will be readily available; reference Cummins Filtration flyer LT15618 for more information.

Compact Design – Designed from the ground up to be the best medium-bore engine in the industry. Compact and powerful, the ISX11.9 has plenty of torque to pull every load while delivering optimum fuel economy. It shares many major components with the ISX15, so it’s strong enough to handle virtually any application.

VGT™ Turbocharger – The Cummins VGT Turbocharger is both simple and precise. Electric actuation allows infinite adjustment, providing the exact amount of boost necessary for superior response. The proven sliding nozzle design has best-in-class reliability and durability.

Duty Cycle* Light Normal Severe
Oil and Filter 35,000 mi
56,000 km
25,000 mi
40,000 km

15,000 mi
24,000 km

Fuel Filter 25,000 mi
40,000 km
25,000 mi
40,000 km

25,000 mi
40,000 km

Coolant Filter** 50,000 mi
80,000 km
50,000 mi
80,000 km
50,000 mi
80,000 km
Valve Adjustment 250,000 mi
402,000 km
250,000 mi
402,000 km
250,000 mi
402,000 km
Coalescing Filter

150,000 mi (240,000 km) or
Every 6th to 7th Oil Change Interval

DEF Filter 200,000 mi (320,000 km)    
Particulate Filter Cleaning 200,000-400,000 mi (320,000-640,000 km)    

*Light Duty = > 6.7 mpg; Normal Duty = 5.5-6.7 mpg; Severe Duty = < 5.5 mpg
**With appropriate filter.

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