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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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. The ISB 6.7 is a versatile powerplant trusted in a wide variety of off-highway equipment and industrial platforms. Common applications include: Excavators Backhoes Bulldozers Graders Skid steers Tractors Sprayers Irrigation pumps Harvesting equipment Standby generators Mobile power units Telecom site backup systems Refuse trucks Street sweepers Utility bucket trucks Public works equipment Prevent downtime and extend engine life with these key maintenance strategies: Change oil and filters every 250–500 hours Inspect oil coolers and seals for leaks Use oils designed for high-temperature, industrial diesel engines Replace filters regularly Drain water separators Use ultra-low sulfur diesel (ULSD) and monitor fuel quality Flush and replace coolant annually or biannually Inspect water pump belts and thermostat seals Monitor temperature sensors for proper range 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. 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 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. ISB 6.7 engines are often deployed in oilfield support roles, especially where Tier 4 emissions are mandated by federal or regional regulations. 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. 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. 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. 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. 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. 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.
Cummins ISB 6.7 Parts
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About the Cummins ISB 6.7 Engine
Durability, Compliance, and Power
Parts for Cummins ISB 6.7
Oil System Parts for Cummins ISB 6.7
Camshafts for Cummins ISB 6.7
Crankshafts for Cummins ISB 6.7
Cylinder Heads for Cummins ISB 6.7
Rebuild Kits for Cummins ISB 6.7
Additional Parts and Accessories for Cummins ISB 6.7
Fuel Pumps and Filters for Cummins ISB 6.7
Sensors and Switches for Cummins ISB 6.7
Exhaust Components for Cummins ISB 6.7
Gauges and Cables for Cummins ISB 6.7
Common Applications for the Cummins ISB 6.7 Engine
Construction Equipment
Agricultural Machinery
Stationary and Mobile Power Generation
Utility and Municipal Vehicles
Maintenance Best Practices for Cummins ISB 6.7 Engines
Lubrication System Care
Fuel System Upkeep
Cooling System Best Practices
Sensor and Electrical System Checks
Why Order Cummins ISB 6.7 Parts From Diesel Pro Power?
Engine Specifications & Applications of the Cummins ISB 6.7 Engine
Introduction
Cummins ISB 6.7 Engine Specifications
Key Features of the ISB 6.7
Marine and Industrial Applications of the Cummins ISB 6.7
1. Marine Gensets and Support Systems
Common Marine Uses:
2. Stationary and Mobile Industrial Generators
Generator Applications:
3. Construction and Utility Equipment
Equipment Types:
4. Oilfield and Energy Sector Applications
Use Cases Include:
5. Agricultural and Utility Equipment
Agriculture Uses:
Advantages for Aftermarket Users
Emissions and Regulatory Notes
Conclusion
