Details
Complete Engine Replacement: DCEC Cummins QSB6.7-C220 (164kW / 220HP)
The DCEC Cummins QSB6.7-C220 is a 6.7L heavy-duty industrial diesel engine engineered for high-cycle construction and mining machinery. Delivering 220 HP (164 kW) at 2200 RPM and a formidable peak torque of 949 Nm at just 1500 RPM, this Tier 3 emissions-compliant powerplant is designed for sustained load operation in harsh environments.
As a premier Cummins QSB6.7-C220 supplier in China, HekoPower understands that machinery downtime is costly. Whether you need a complete QSB6.7-C220 engine replacement for a stranded excavator or are sourcing wholesale inventory for OEM manufacturing, we provide fully assembled, ESN-verified units ready for integration.
Tech Specs of Cummins QSB6.7-220
General Engine Data
Engine Model: Cummins QSB6.7-220
Type: 6 Cylinders in Line
Displacement: 6.7 L
Bore * Stroke: 102 * 120
Overall Dimension: 1059mm*725mm*960mm
Net Weight (with flywheel & alternator): 475 Kg
Key Performance Data
Rated Power: 164 kW/220HP
Rated Speed: 2000 rpm
Max Torque/Speed: 952 N.m @ 1400 rpm
Fuel Consumption @ Rated Power: 226g/Kw.h @ 2000 rpm
More Technical Data
Certification: U.S. EPA Tier 3, CARB Tier 3, EU Stage III, Pending
Aspiration: Turbocharged and Charge Air Cooled
Fuel System: Bosch Electronic
Compression Ratio: 17.2:1
Electrical System (Starter Motor/Alternator): 12V/24V
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 10 L
Real Application Scenarios
The QSB6.7-C220 machine compatibility footprint is vast, making it one of the most versatile 6.7L engines in the industrial sector. Because it balances a compact footprint with high power density, it is the factory standard for a wide range of heavy earthmoving machinery.
In the earthmoving sector, it is highly sought after as a Cummins QSB6.7-C220 excavator engine and loader replacement engine. Operators of 20-ton to 30-ton class excavators rely on the 949 Nm torque reserve to tear through compacted soil and rock without stalling the hydraulic system. Similarly, as a wheel loader engine, the fast torque response of the turbocharged air-to-air intercooler system ensures rapid bucket-fill cycles.
Beyond standard earthmoving, the QSB6.7-C220 is a proven rotary drilling rig engine and hydraulic power pack engine. Deep foundation drilling requires consistent, sustained RPM under sudden, massive load spikes. The Bosch electronic fuel system dynamically adjusts fuel delivery to maintain RPM when the auger bites into bedrock. We also frequently supply this model as a mining engine and pump drive application powerplant, where extreme dust and continuous duty cycles demand the forged steel crankshaft and high-strength cast-iron block inherent to the QSB6.7 family.
Technical Comparisons: Sizing Your Power Needs
When planning an industrial engine replacement, fleet managers frequently ask how the QSB6.7-C220 compares to other Cummins configurations. Understanding these differences is critical to avoiding under-powering your equipment or wasting fuel.
When comparing the QSB6.7-C220 220HP vs the 260HP (QSB6.7-C260) variant, the physical engine installation dimensions are identical. The primary difference lies in the fuel mapping and turbocharger configuration. The C260 generates 990 Nm of torque compared to the C220’s 949 Nm, but it consumes more fuel at full load. If your hydraulic system is rated for the C220, upgrading to the C260 without modifying the pump flow could lead to excess heat generation without any functional gain in digging power. Conversely, comparing the QSB6.7-C220 vs QSB6.7-C190 reveals a significant jump in capability. The C190 only produces 931 Nm of torque at a lower 1400 RPM, making the C220 the vastly superior choice for machines that experience sudden, severe load variations.
Engine size comparison is also vital when contrasting the QSB6.7-C220 vs QSC8.3 or QSL8.9. The QSC8.3 and QSL8.9 are physically much larger, heavier powerplants designed for 35-ton to 50-ton machines. While an older QSC8.3 might produce similar horsepower to the QSB6.7-C220, you cannot perform a direct engine swap between the two. The 6.7L engine bore and stroke dimensions (107mm x 124mm) make it far more compact. Attempting to fit an 8.3L engine into a bay designed for a 6.7L will result in catastrophic clearance issues with the engine mounting dimensions, radiator, and hood.
Maintenance, Engine Swap, and Replacement Tips
Performing a QSB6.7-C220 engine swap requires exact hardware and software matching. Buying a replacement diesel engine based purely on horsepower will almost certainly result in installation failure.
The most critical step in how to match a Cummins QSB6.7 replacement engine is QSB6.7-C220 ESN verification (Engine Serial Number) and QSB6.7-C220 CPL verification (Control Parts List). For instance, CPL 8466 dictates the exact piston design, injector spray angles, and turbocharger housing required for this specific 220HP output. Providing HekoPower with your original ESN ensures we supply an engine with the correct QSB6.7-C220 flywheel housing size and starter motor mounting location.
Furthermore, QSB6.7-C220 ECU compatibility and the wiring harness layout must align with your machine's cab controls. The QSB6.7-C220 Bosch electronic fuel system communicates directly with your machine's hydraulic controllers via CAN bus. If the replacement engine's ECM software does not recognize your excavator's specific joystick inputs, the machine will not operate. HekoPower verifies these electronic parameters before shipping to ensure seamless replacement compatibility.
Because the QSB family is so highly adaptable, Dongfeng Cummins produces numerous variations tailored to specific machinery requirements. To ensure you find the exact power rating for your fleet, you can explore the other configurations within this product family. Cummins QSB6.7 Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes QSB6.7-220.
Engine Compatibility and Purchasing FAQs
How do I identify if my machine uses a QSB6.7-C220 engine?
Locate the engine dataplate, typically riveted to the rocker cover or the side of the cylinder block. It will clearly state the engine model, the CPL code (such as CPL 8466), and the exact horsepower and RPM rating. If the dataplate is missing, contact HekoPower with the machine's chassis number, and we can help cross-reference the required replacement engine.
What is the QSB6.7-C220 engine lead time and shipping process from China?
For standard configurations, the lead time is approximately 10 to 15 business days to prepare and crate the engine assembly. As an experienced Cummins QSB6.7-C220 exporter, HekoPower coordinates global sea and air freight, ensuring the engine is securely packaged in a custom wooden crate to prevent moisture and transit damage.
How can I get the best QSB6.7-C220 engine price?
Engine prices fluctuate based on raw material costs and exchange rates. HekoPower offers highly competitive Cummins QSB6.7-C220 wholesale pricing for fleet operators, OEM manufacturers, and repair facilities. Contact our sales team with your target quantity and destination port for an accurate, real-time quote.
Is it normal for a new replacement engine to consume a little oil during the first 100 hours?
Yes. A common misconception during a QSB6.7-C220 complete engine replacement is that zero oil consumption indicates perfect health. In reality, the piston rings require a break-in period to properly seat against the cylinder walls. Minor oil consumption during the first 50 to 100 hours of heavy-duty industrial operation is completely normal and will stabilize as the engine breaks in.
