ISB6.7 for Fire & Emergency (EPA 2010)


ISB6.7 for Fire & Emergency (EPA 2010)
Proven Power. Every Call. ISB6.7 for EPA 2010.

For superior performance at every rpm, Cummins ISB6.7 EPA 2010 is 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.

The ISB6.7 incorporates a fully integrated aftertreatment system that combines cooled EGR with proven Selective Catalytic Reduction (SCR) technology. This proven technology delivers near zero emissions, while getting more power out of every drop of fuel.

From the reliability and durability you’ve come to expect from a Cummins B Series engine, to the power and efficiency of our latest technology, the ISB6.7 delivers it all.  Every call.

More information on the standard features and maintenance intervals for this engine are available online or by speaking with your Cummins representative.


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, Fire & Emergency

See ISB PowerSpec Engine Features


Advertised Horsepower  260-360 hp  194-269 kW 
Peak Torque  660-800 lb-ft  895-1085 N•m 
Governed Speed  2600 rpm (2800 rpm for 340 hp rating) 
Clutch Engagement Torque  400 lb-ft  542 N•m
Number of Cylinders 


Oil System Capacity   3.75 U.S. gallons  14.2 liters 
System Weight  1,206 lb  547 kg 
Engine (Dry) 1,151 lb  522 kg 
Aftertreatment System* 190 lb  86 kg 
*Increase over standard muffler and does not include chassis OEM-supplied components.

Product Finder Specifications

Certification Level EPA 2010
Power 260 - 360 hp / 194 - 268 kW
Torque 660 - 800 lb-ft / 895 - 1085 N•m


Engine Model  Advertised HP  Peak Torque  Governed Speed 
ISB6.7 260 


660 @ 1600 


ISB6.7 280


660 @ 1600  


ISB6.7 300


660 @ 1600 


ISB6.7 325


750 @ 1600 


ISB6.7 340*


660 @ 1600 


ISB6.7 360*


800 @ 1800 




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.

HPCR Fuel System – The 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, which maximizes fuel economy and performance while decreasing noise and 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 SCR to meet emissions standards while maintaining best-inclass 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.


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 


Coolant Filter  None***  None***  None***
Overhead Adjustment 150,000 mi 
241,500 km 



Standard Coolant Change****   60,000 mi 
96,000 km



Coalescing Filter  Every 3rd to 4th Oil Change Interval 
DEF Filter  200,000 mi 320,000 km     
Particulate Filter
200,000 mi (320,000 km) or 6,500 hours 
* Assuming normal duty cycle for fire/emergency vehicle applications and 14.2 liter (15 qt) capacity lubricating oil pan
**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/flush/fill 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.

Brochures Available

Title Bulletin Number Request View  
Cummins Particulate Filter For Fire And Emergency Vehicles Flyer (EPA 2007 and EPA 2010) 4971356 Request View  Download
Engines And Commercial Mobile Generators For Fire And Emergency Applications Brochure (2010) 4971218 Request View  Download
ReCon DPF For ISB Engines Flyer 5410974 Request View  Download
ReCon DPF For ISB Engines Flyer - French 5410978 Request View  Download
ReCon DPF For ISB Engines Flyer - Spanish 5410977 Request View  Download
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