Cummins ISB 6.7 Parts

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Parts For Cummins ISB 6.7 Industrial and Off-Highway Engines

The Cummins ISB 6.7 is a high-performance diesel engine trusted across industries ranging from construction and agriculture to material handling and power generation. As the evolution of the ISB 5.9, this 6.7-liter engine delivers better emissions control, higher torque output, and longer service intervals. At Diesel Pro Power, we help industrial operators maximize uptime with a full catalog of ISB 6.7 replacement parts—ready to ship worldwide within 24 hours.

About the Cummins ISB 6.7 Engine

Durability, Compliance, and Power

The Cummins ISB 6.7 was built for the demands of industrial equipment and off-highway vehicles. Whether you're powering a backhoe, loader, irrigation pump, or stationary generator, this engine provides the torque, emissions compliance, and reliability required for long-duty cycles.

Key features include:

6.7L Displacement : Larger than its predecessor (ISB 5.9), delivering more torque
High-Pressure Common Rail Fuel Injection (HPCR) : For precision combustion
Exhaust Gas Recirculation (EGR) & Diesel Particulate Filter (DPF) : Compliant with Tier 3/4 Final standards
24-Valve Configuration : Increases airflow and combustion efficiency

The ISB 6.7 is frequently found in industrial OEM builds, municipal utility trucks, agricultural machines, and mobile power equipment.

Parts for Cummins ISB 6.7

Diesel Pro Power carries a complete selection of components for Cummins ISB 6.7 engines. Whether you're overhauling an engine or replacing key wear parts, our inventory includes high-quality, OEM-compliant solutions.

Oil System Parts for Cummins ISB 6.7

Lubrication is critical in high-load environments. Our oil system components include:

Oil pumps
Oil coolers
Oil pan gaskets
Fuel pressure switches

These parts ensure stable oil flow and thermal regulation during extended operation.

Camshafts for Cummins ISB 6.7

The camshaft coordinates valve timing to maintain engine efficiency and emissions compliance. We supply:

Valve lifters (for both generations of the ISB 6.7)
Timing gear assemblies
Camshaft bearings

Precision-fit components help you maintain timing integrity under continuous use.

Crankshafts for Cummins ISB 6.7

The crankshaft is the structural foundation of engine motion. We stock:

Crankshaft seal kits
Vibration dampers
Shell sets

Our components support balance, vibration control, and high-load operation.

Cylinder Heads for Cummins ISB 6.7

Restore compression and airflow with cylinder head components built for industrial duty:

Cylinder heads (with and without valves)
Intake and exhaust valves
Valve springs
Cover gaskets

All components are manufactured to resist thermal stress and long-hour duty cycles.

Rebuild Kits for Cummins ISB 6.7

From routine maintenance to complete overhauls, we offer:

Full engine rebuild kits
Lower gasket rebuild kits
Piston kits
Crankshaft rebuild kits

Each kit is carefully assembled to match ISB 6.7 engine specs for industrial applications.

Additional Parts and Accessories for Cummins ISB 6.7

Fuel Pumps and Filters for Cummins ISB 6.7

Reliable fuel delivery and filtration are essential for any industrial diesel. We carry:

Fuel pumps
Fuel filters
Water separator filters
Injection pump gaskets

These components are designed to reduce injector fouling and protect sensitive components from contaminants.

Sensors and Switches for Cummins ISB 6.7

Monitor engine performance and prevent unexpected shutdowns with our sensor solutions:

Oil pressure sensors
Temperature sensors
Boost pressure sensors
Engine kill switches

All sensors are ruggedized for industrial-grade durability and accuracy.

Exhaust Components for Cummins ISB 6.7

Maintain emissions compliance and prevent backpressure buildup:

Exhaust manifolds
EGR valves
Gaskets and flanges
Exhaust system mounting hardware

All parts are compatible with emissions control systems for industrial engines.

Gauges and Cables for Cummins ISB 6.7

Stay informed with our full line of gauges and electronic connectors:

Oil pressure gauges
Water temperature gauges
Tachometers
Control cables and harness extensions

These components are vibration-tested and moisture-sealed for field equipment environments.

Common Applications for the Cummins ISB 6.7 Engine

The ISB 6.7 is a versatile powerplant trusted in a wide variety of off-highway equipment and industrial platforms. Common applications include:

Construction Equipment

Excavators
Backhoes
Bulldozers
Graders
Skid steers

Agricultural Machinery

Tractors
Sprayers
Irrigation pumps
Harvesting equipment

Stationary and Mobile Power Generation

Standby generators
Mobile power units
Telecom site backup systems

Utility and Municipal Vehicles

Refuse trucks
Street sweepers
Utility bucket trucks
Public works equipment

Maintenance Best Practices for Cummins ISB 6.7 Engines

Prevent downtime and extend engine life with these key maintenance strategies:

Lubrication System Care

Change oil and filters every 250–500 hours
Inspect oil coolers and seals for leaks
Use oils designed for high-temperature, industrial diesel engines

Fuel System Upkeep

Replace filters regularly
Drain water separators
Use ultra-low sulfur diesel (ULSD) and monitor fuel quality

Cooling System Best Practices

Flush and replace coolant annually or biannually
Inspect water pump belts and thermostat seals
Monitor temperature sensors for proper range

Sensor and Electrical System Checks

Verify sensor calibration at regular intervals
Inspect connectors and cables for damage
Replace gauges showing erratic readings

Preventative maintenance ensures maximum performance and compliance with Tier 3/4 emissions standards.

Why Order Cummins ISB 6.7 Parts From Diesel Pro Power?

When industrial uptime is your top priority, Diesel Pro Power delivers the speed, support, and selection you need:

24-Hour Worldwide Shipping : Orders ship anywhere in the world within 24 hours
Over 24,000 Satisfied Customers : Trusted by equipment operators, contractors, and fleet managers
Dedicated Customer Service : Our expert team helps identify and confirm part compatibility
Easy-to-Use Website : Designed for both seasoned mechanics and first-time buyers

OEM-Level Quality : All parts meet or exceed original performance specifications

Engine Specifications & Applications of the Cummins ISB 6.7 Engine

Introduction

The Cummins ISB 6.7 is the most advanced evolution of the B Series engine family, succeeding the earlier ISB 5.9 with improved power output, greater displacement, and superior emissions control. Introduced in the mid-2000s, the ISB 6.7 has become a dominant force in mid-range diesel applications, especially in environments where emissions compliance, electronic integration, and engine longevity are critical.

Built on the same foundation of durability and serviceability as its predecessors, the ISB 6.7 is designed to meet the demands of Tier 3, Tier 4 Final, and Euro Stage V emissions standards. It does so with innovations such as a variable geometry turbocharger (VGT) , high-pressure common rail (HPCR) fuel injection , and full-authority ECM , enabling advanced control strategies for fuel economy, diagnostics, and power delivery.

Whether used in marine auxiliary systems , industrial generators , or off-road machinery , the Cummins ISB 6.7 offers exceptional performance, minimal environmental impact, and broad compatibility for both OEM and aftermarket applications.

Cummins ISB 6.7 Engine Specifications

Specification	Detail
Configuration	Inline 6-cylinder, 4-stroke diesel
Displacement	6.7 liters (408 cubic inches)
Bore x Stroke	4.21 in x 4.88 in (107 mm x 124 mm)
Aspiration	Turbocharged and Aftercooled, VGT
Fuel System	High-Pressure Common Rail (HPCR)
Compression Ratio	17.3:1
Horsepower Range	200–360 HP @ 2,500–2,800 RPM
Peak Torque	520–800 lb-ft @ 1,400–1,800 RPM
Emissions Tier	Tier 3, Tier 4 Final, Euro Stage IV/V
Cooling System	Liquid-cooled with belt-driven water pump
Oil Capacity	16–18 quarts (15–17 liters)
Dry Weight	~1,150 lbs (521 kg)
Engine Management	ECM with CAN bus, diagnostic logging

The ISB 6.7 combines the strength of a cast-iron block and head with modern electronics and emissions technology. Its VGT allows for variable boost levels based on load demand, improving both throttle response and exhaust aftertreatment performance.

Key Features of the ISB 6.7

Advanced Emissions Control : Compliant with Tier 4 Final and Euro Stage V standards; many configurations include DPF and SCR systems.
Variable Geometry Turbocharger (VGT) : Enhances power delivery, engine braking, and EGR performance.
Full Electronic Control : ECM regulates injection timing, boost, EGR, and aftertreatment systems.
Durable Architecture : Forged steel crankshaft, high-strength pistons, and improved cooling design allow for extended duty cycles.
High Torque Output : Up to 800 lb-ft, ideal for powering heavy auxiliary loads or industrial attachments.
Serviceable and Supported : Extensive aftermarket parts availability and technical documentation for repair or repower needs.

Marine and Industrial Applications of the Cummins ISB 6.7

The ISB 6.7 is widely used in demanding commercial and industrial environments . Its compact size, electronic control, and high output make it suitable for both new installations and repowers where emissions upgrades or electronic integration are required.

1. Marine Gensets and Support Systems

The ISB 6.7 is a top choice for marine generator sets and auxiliary power applications on vessels operating in emissions-regulated waters. It provides stable power, ECM diagnostics, and fuel efficiency , critical for marine auxiliary roles.

Common Marine Uses:

Diesel generator sets (Tier 3/Tier 4 Final certified)
Power for hydraulics: winches, cranes, thrusters
Emergency fire pumps or bilge systems
Refrigeration, HVAC, and desalination support
Commercial vessels, ferries, and offshore supply ships

Its quiet operation, clean emissions, and programmable control features make it ideal for modern vessels requiring consistent onboard support systems.

2. Stationary and Mobile Industrial Generators

With horsepower ratings ranging from 200–360 HP, the ISB 6.7 excels in industrial generator applications . Its ECM allows for integration with auto-start systems, load sharing, and remote monitoring.

Generator Applications:

Standby and prime gensets (125–180 kW)
Telecom and hospital backup power
Export power modules for emissions-compliant regions
Mobile trailer generators for construction and mining
Remote facility or disaster recovery generators

Its Tier 4 Final compatibility ensures ongoing use in regulated markets, reducing liability for operators in environmentally sensitive industries.

3. Construction and Utility Equipment

The Cummins ISB 6.7 powers a wide range of off-road equipment , often in machines where high torque and advanced emissions technology are required in tight engine compartments.

Equipment Types:

Excavators, bulldozers, and compact loaders
Utility trucks, digger derricks, and aerial lifts
Paving machines, rollers, and compactors
Mobile lighting towers and hydraulic skids

Its high low-end torque and programmable throttle profiles allow OEMs and fleet managers to fine-tune equipment for both fuel efficiency and jobsite performance.

4. Oilfield and Energy Sector Applications

ISB 6.7 engines are often deployed in oilfield support roles , especially where Tier 4 emissions are mandated by federal or regional regulations.

Use Cases Include:

Portable frac water heating systems
Blending unit engine drives
Fuel and chemical transfer pumps
Instrumentation trailer gensets
Mobile compressor and booster units

The electronic diagnostics and emissions profile make it especially valuable for remote monitoring and uptime-critical operations in oil and gas fields.

5. Agricultural and Utility Equipment

While not as common in tractors as smaller variants, the ISB 6.7 is used in stationary farm engines, mobile power carts, and irrigation systems where consistent load capacity and emissions compliance are necessary.

Agriculture Uses:

Irrigation pumps and water transfer engines
Grain dryers, feed conveyors, and augers
Emergency gensets for barns and greenhouses
Mobile refrigeration trailers for produce and dairy

The ECM support and telematics compatibility let agricultural operations integrate the engine into larger precision farming systems, improving data tracking and resource usage.

Advantages for Aftermarket Users

The Cummins ISB 6.7 is designed not only for OEM installations but also for aftermarket replacements, repowers, and overhauls . For fleets and operators already familiar with Cummins systems, the 6.7 is a logical upgrade path offering improved power, diagnostics, and regulatory compliance.

Key benefits include:

Tier 4 Final Ready : Meets the most stringent emissions requirements with proper aftertreatment setup.
ECM-Based Monitoring : Supports real-time engine health tracking and programmable performance settings.
Backward-Compatible : Shares architecture with earlier 5.9 and 6BT engines, easing transition in retrofits.
Proven Durability : Often reaches 15,000+ hours with standard maintenance cycles.
Broad Parts Support : Diesel Pro Power and other suppliers carry extensive parts inventories for the 6.7, including turbos, sensors, injectors, gaskets, and electronics.
Fuel Efficiency : Advanced combustion controls improve fuel economy by up to 10–15% over previous generations.

Emissions and Regulatory Notes

The Cummins ISB 6.7 is capable of meeting:

EPA Tier 4 Final (United States)
CARB-compliant versions for California-based operations
Euro Stage V (for European markets)
IMO Tier II/III auxiliary certification (in specific marine configurations)

These certifications make it ideal for equipment operating in coastal zones, urban areas, and ports where diesel engine regulations are strictly enforced.

Conclusion

The Cummins ISB 6.7 engine delivers industry-leading reliability, performance, and emissions compliance in a versatile 6-cylinder package. Whether powering a Tier 4 genset, operating in an auxiliary role aboard a work vessel, or driving hydraulics in an oilfield trailer, the 6.7 meets the toughest operational and environmental standards.

With over a decade of field-proven performance , this engine remains a top choice for operators needing advanced electronics, low emissions, and dependable torque output. Diesel Pro Power offers full aftermarket support to help keep your ISB 6.7 engine running efficiently—no matter the environment or application.

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