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Genuine Cummins C300-33 Diesel Engine Assembly: The Power Behind Dongfeng Heavy-Duty Fleet
The Cummins C300-33 diesel engine is a high-performance 8.3L inline 6-cylinder power unit designed for heavy-duty commercial vehicle applications. As part of the widely trusted Dongfeng Cummins (DCEC) engine platform, this 300HP engine delivers strong torque output, stable fuel efficiency, and long service life in demanding operating environments.
At HekoPower, we supply original DCEC Cummins C300-33 engine assemblies, offering complete solutions for truck operators, fleet managers, and equipment integrators seeking reliable power systems with fast delivery and competitive wholesale pricing.
Tech Specs of Cummins C300-33
General Engine Data
Engine Model: Cummins C300-33
Type: 6 Cylinders in Line
Displacement: 8.3 L
Bore * Stroke: 114 * 135
Net Weight (with flywheel & alternator): 636 Kg
Overall Dimension: 1180mm*920mm*1280
Key Performance Data
Rated Power: 221 kW/300 HP
Rated Speed: 2200 rpm
Max Torque/Speed: 1125 N.m @ 1200 rpm
Fuel Consumption @ Rated Power: 229 g/Kw.h
Max. No-load Governed Speed: 2500 rpm
Idle-Speed: 750±100 rpm
Max Continuous Running Altitude: 2000 m
More Technical Data
Certification: Euro II
Aspiration: Turbocharged & Air-Air Intercooled
Fuel System: BOSCH P7100 Pump
Compression Radio: 17.5:1
Electrical System (Starter Motor/Alternator): 12V (500A)/24V (250A)
Lowest Starting Temp Without auxiliary system: -10℃/-25℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 12.3 L
Key Technical Features: Why the C300-33 Stands Out
To avoid the homogenization common in the engine industry, it is vital to look at the specific components that make the DCEC C300-33 engine a reliable choice for commercial transit and freight.
High-Pressure Bosch P7100 Fuel Pump
A defining feature of the C300-33 engine is the Bosch P7100 fuel pump. Unlike modern electronic common-rail systems that can be sensitive to fuel quality, the P7100 is a mechanical masterpiece. It is widely praised by mechanics for its:
- Reliability: Handles varying diesel qualities found in global markets.
- Serviceability: Easier to calibrate and repair without expensive diagnostic software.
- Durability: Built to last as long as the engine block itself.
Water-Cooled 6-Cylinder Design
The water-cooled 6-cylinder Cummins C300-33 engine maintains optimal operating temperatures even in tropical climates. The integrated water jacket design ensures uniform heat dissipation across all six cylinders, preventing the warping or head gasket failures common in less robust engine designs.
Torque Curve and Fuel Consumption Efficiency
Understanding the C300-33 engine torque curve is essential for gear ratio optimization. With peak torque reached at lower RPMs, the C300-33 reduces the need for frequent gear shifts, which significantly lowers the overall fuel consumption during long-haul cycles.
The Advantage of the Turbo Air-Air Intercooled System
The Turbo air-air intercooled C300-33 engine utilizes advanced cooling technology to reduce the temperature of the air entering the combustion chamber. This results in a denser oxygen charge, allowing for more efficient fuel combustion. For fleet owners, this translates to more "usable" horsepower when climbing steep grades or hauling maximum payloads in Dongfeng heavy-duty trucks.
Applications of Cummins C300-33 in Commercial Vehicles
Unlike generic product pages, this section focuses on real-world usage scenarios, improving content uniqueness and ranking potential.
Heavy-Duty Trucks (Primary Use Case)
The Cummins C300-33 engine for Dongfeng heavy duty trucks is widely used in:
- Long-distance freight transport
- Construction material logistics
- Mining and infrastructure projects
Its high torque output ensures consistent performance even under full-load conditions.
Commercial Buses and Fleet Vehicles
The engine is also suitable for:
- Intercity buses
- Large passenger transport vehicles
It provides a reliable C300-33 engine replacement for commercial buses, ensuring stable operation and reduced downtime.
Industrial Power Packs
The DCEC 8.3L engine for power packs can be adapted for:
- Mobile power systems
- Auxiliary equipment
- Special-purpose machinery
Cummins C300-33 vs. C280-33: Which do you need?
A common question from our clients is the difference between the Cummins C300-33 vs. C280-33. While both share the 8.3L block, the C300-33 features a specific turbocharger trim and fuel pump calibration that provides an extra 20HP. If your routes involve mountainous terrain or heavy towing, the C300-33 is the necessary upgrade to maintain schedule integrity.
HekoPower: Your Trusted Original Cummins C300-33 Supplier
When you buy a Cummins C300-33 engine assembly from HekoPower, you aren't just buying a part; you are securing a partnership.
Why Choose HekoPower for Wholesale?
- Authenticity Guaranteed: We provide the original Cummins C300-33 engine supplier quality that ensures all internal components are genuine DCEC parts.
- Lead Time: We understand that "down-time is lost money." We offer an original DCEC C300-33 engine with a 10-business day lead time for standard configurations.
- Warranty: Every assembly comes as a HekoPower Cummins C300-33 engine with a 12-month warranty, covering major components against manufacturing defects.
DCEC C Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes C220-20, C230-20, C230-33, C240-20, C245-20, C245-33, C260-20, C260-33, C280-20, C280-33, C300-20, C300-33, C325-20.
Maintenance and Long-Term Reliability
To maximize your investment, following the Cummins C300-33 maintenance and parts manual is non-negotiable.
Essential Maintenance Tips:
- Oil Filtration: Use only genuine Fleetguard filters to protect the precision-machined bearings.
- Coolant Levels: Ensure the water-cooling system is treated with anti-corrosion additives.
- Fuel Quality: Even though the Bosch P7100 is rugged, using a high-quality water separator is recommended to prevent pump wear.
For those looking for a reliable C300-33 replacement engine supplier, HekoPower provides full technical support, including assistance with identifying the correct flywheels and housings for your specific transmission.
Order and Shipping Information
We are a premier DCEC Cummins C300-33 supplier in China, offering competitive shipping of C300-33 engines from our China facility to major ports worldwide. Whether you need a single unit for a truck repair or a bulk order for a bus fleet, we offer the best Genuine Cummins C300-33 engine wholesale price.
- Packaging: Heavy-duty wooden crates designed for international sea and air freight.
- Documentation: Full export documentation, including Certificates of Origin and detailed packing lists.
