ISB6.7 for Medium-Duty Truck (EPA 2010)


ISB6.7 for Medium-Duty Truck (EPA 2010)Cummins ISB6.7 EPA 2010 delivers superior performance with the lowest cost of operation and maximum uptime to make it best-in-class.  Its High Pressure Common Rail (HPCR) fuel system delivers an optimum balance of performance, emissions control and fuel economy across the entire operating range.  Ratings range from 200-325 hp and a maximum 750 lb-ft of peak torque. 

How did we make these improvements and still meet stringent 2010 emissions standards?  With a totally integrated system, that’s how.  Everything from the advanced fuel injection technology, improved cooled EGR subsystem and Cummins VGT™ Turbocharger to the proven Cummins Aftertreatment System that includes Selective Catalytic Reduction (SCR) technology has been engineered and manufactured in-house.   The result is a totally integrated system delivering an engine that provides near-zero emissions without compromising performance.
And that’s just a few of the features the ISB6.7 has to offer.  It is designed to keep your maintenance to a minimum while delivering big results.

All backed by the best customer support in the business.

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 ISB PowerSpec Engine Features


EPA 2010 ISB6.7 - Specifications
Advertised Horsepower  200-325 hp  150-242 kW 
Peak Torque  520-750 lb-ft  705-1017 N•m
Governed Speed  2600 rpm
Clutch Engagement Torque  400 lb-ft  542 N•m
Number of Cylinders  6
Oil System Capacity  4 U.S. gallons  15 liters 
System Weight  1,340 lb  608 kg 
     Engine (Dry)  1,150 lb  522 kg 
     Aftertreatment System*  190 lb  86 kg 
*Increase over standard muffler and does not include chassis OEM-supplied components

Engine Finder Specifications

Certification Level EPA 2010
Power 200 - 325 hp / 149 - 242 kW
Torque 520 - 750 lb-ft / 705 - 1017 N•m


Engine Model  Advertised Horsepower (kW)  Peak Torque lb-ft (N•m) @ rpm 
ISB6.7 325 325 (242)  750 (1017) @1600 
ISB6.7 300 300 (224)  660  (895) @ 1600 
ISB6.7 280 280 (209)  660  (895) @ 1600 
ISB6.7 260 260 (194)  660  (895) @ 1600  
ISB6.7 250 250 (186)  660  (895) @ 1600  
ISB6.7 240 240 (179)  560  (759) @ 1600
ISB6.7 220 220 (164)  520  (705) @ 1600
ISB6.7 200 200 (149)  520  (705) @ 1600


EPA 2010 ISB6.7 - Features

VGT™ Turbocharger - Enhanced response and control with electric actuation for an infinite adjustment, providing exact boost across the operating range. Sliding-nozzle design increases reliability and durability.

Lowest Cost Of Operation - Reduced maintenance, long service intervals and the best fuel efficiency of any engine in its class add up to superior lifetime value. 

HPCR Fuel System - Delivers a precise mixture of fuel and air at a constant pressure, regardless of engine rpm.  This flexibility in injection timing allows multiple injection events per cycle.

Cooled EGR - 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 emission standards while maintaining best-in-class performance, reliability and durability.


EPA 2010 ISB6.7 - Maintenance
Maintenance Item  Miles / Kilometers  Hours  Months 
Oil and Filter* 15,000 mi
24,000 km 
Primary Fuel Filter**  15,000 mi
24,000 km 
Secondary Fuel Filter  15,000 mi
24,000 km 
500 6
Coolant Filter  None***  None***   None*** 
Overhead Adjustment 150,000 mi
241,500 km 
5,000  48 
Standard Coolant Change****  60,000 mi
96,000 km
2000 24 
Coalescing Filter 

Every 3rd to 4th Oil Change Interval

DEF Filter

200,000 mi (320,000 km)

Particulate Filter

200,000 - 400,000 mi (320,000 - 640,000 km)

*Assuming normal duty cycle
**OEM supplied, intervals may vary
***If engine is equipped with an optional coolant filter, it will need to be replaced on the same intervals as the oil filter.
****Extended coolant and drain/fill/flush intervals may be followed when certain requirements are met.  For more information on these requirements, refer to the Cummins Coolant Requirements and Maintenance Service Bulletin 3666132.

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  
SmartSaver6 Injector Kit For ISB5.9 And ISB6.7 Engines Flyer 2878929 Request View  Download
SmartSaver6 Injector Kit For ISB5.9 And ISB6.7 Engines Flyer - French 2878936 Request View  Download