Details
Cummins M11-C335 Construction Diesel Engine (335HP / 246kW)
When evaluating heavy machinery engine replacements, fleet managers require power units that deliver consistent performance under severe strain. The Cummins M11-C335 is specifically calibrated to meet these exact demands. As a robust 11 Liter Cummins water-cooled diesel engine, it generates a steady 335HP at an operating speed of 1800 RPM. This specific calibration provides a vital balance between raw pushing power and fuel efficiency.
Unlike lighter-duty alternatives, this M11-C335 6 cylinder diesel engine features a substantial 125x147 mm bore stroke. This generous internal displacement allows the engine to breathe easier under heavy loads, reducing thermal stress on internal components. For buyers looking for a complete M11-C335 engine assembly, understanding these specific performance metrics is crucial for ensuring compatibility with your existing construction equipment.
Tech Specs of Cummins M11-C335
General Engine Data
Engine Model: Cummins M11-C335
Type: 6 Cylinders in Line
Displacement: 10.8 L
Bore * Stroke: 125 * 147
Overall Dimension: 1450mm*950mm*1010mm
Net Weight (with flywheel & alternator): 980 Kg
Key Performance Data
Rated Power: 246 kW/335HP
Rated Speed: 1800 rpm
Max Torque/Speed: 1458 N.m @ 1300 rpm
Max. No-Load Speed: 2450 rpm
Fuel Consumption @ Rated Power: 64.4 L/hr
Idle Speed: 675-750 rpm
Max. Continuous Running Altitude: 3048 m
More Technical Data
Certification: Tier 1
Aspiration: Turbocharged-Intercooled
Fuel System: Direct Injection PT Pump, STC
Compression Ratio: 16.1:1
Electrical System (Starter Motor/Alternator): 12V/24V
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 9.5 L
Technical Advantages of the M11-C335 Configuration
High Torque Output at Low RPMs
The standout feature of this specific model is the M11-C335 maximum torque output. Generating a massive 1458 N.m peak torque at just 1300 rpm ensures that machinery operators have instant access to breakout force. When an excavator bucket hits dense bedrock, or a wheel loader pushes into a heavy pile of gravel, the engine does not need to redline to deliver power. This low-end grunt prevents engine stalling and significantly reduces long-term wear on the drivetrain.
The Reliability of the Cummins M11 PT Fuel Pump System
Modern electronic engines often struggle in highly abrasive or dusty environments. The Cummins M11-C335 mechanical fuel system bypasses this vulnerability entirely. Equipped with the legendary M11-C335 direct injection PT pump, this system relies on mechanical pressure and timing rather than fragile electronic sensors. The PT pump ensures precise fuel metering directly into the combustion chamber. When combined with the M11-C335 STC timing system (Step Timing Control), the engine automatically adjusts injection timing based on load, minimizing white smoke during cold starts and optimizing the M11-C335 fuel consumption 64.4 L/hr rating at rated power.
Efficient Thermal Management
Heavy continuous workloads generate massive heat. The M11-C335 turbocharged intercooled engine design aggressively tackles thermal overload. By forcing dense, cooled air into the intake manifold, the turbocharger maximizes the combustion efficiency of every drop of diesel. This allows the M11-C335 10.8 liter engine to maintain stable operating temperatures even during prolonged shifts in peak summer heat.
Real-World Application Scenarios
The CCEC M11-C335 diesel engine is not a universal fit; it is a purpose-built industrial equipment engine designed for specific heavy-duty applications.
As a primary M11-C335 engine for excavator applications, the 246kW output provides the exact hydraulic flow required for 30-to-40-ton class machines. Operators will notice smoother boom controls and faster cycle times during trenching operations.
When utilized as an M11-C335 engine for wheel loader platforms, the 1458Nm torque translates directly to tire traction and lifting capacity. The mechanical fuel injection system is particularly favored in quarry and mining environments where loaders face constant, jarring load changes.
Furthermore, we frequently supply this unit as an M11-C335 engine for bulldozer and road roller fleet upgrades. Earthmoving requires an engine that can handle continuous heavy drag. The robust M11-C335 engine weight and dimensions make it structurally sound enough to act as a stressed member in certain chassis designs, absorbing heavy vibrations without cracking the block.
Technical Comparisons: How the 335HP Model Stands Out
Many buyers ask us how the Cummins M11-C335 compares to other engines within the broader M-Series family or against competing 11-liter platforms. The defining difference lies in the M11-C335 rated power and RPM curve.
If you compare this 335HP model to a lower 290HP variant, the C335 features a more aggressive fuel delivery profile, making it suitable for primary earthmoving rather than just stationary water pump applications. Conversely, when compared to the higher-output 380HP models, the M11-C335 1800 RPM operating ceiling prioritizes longevity over sheer speed. Higher horsepower engines often run at higher RPMs, which accelerates cylinder wear. The 335HP configuration is the sweet spot for fleet owners who want a decade of reliable service life before requiring a major overhaul. It offers enough power to handle demanding construction tasks while maintaining a highly conservative M11-C335 compression ratio that protects the head gasket.
Maintenance and Engine Replacement Tips
Best Practices for Component Longevity
Maintaining the M11-C335 replacement diesel engine requires strict adherence to fluid schedules. Because the M11-C335 PT pump diesel engine utilizes the fuel itself to lubricate the internal pump mechanics, ensuring you have clean, water-free diesel is non-negotiable. Always replace fuel filters at the recommended intervals using M11-C335 genuine parts to prevent scoring the pump injectors.
Additionally, operators must practice proper shutdown procedures. Because this is a M11-C335 turbocharged diesel, the turbocharger spins at tens of thousands of revolutions per minute. Shutting the engine off immediately after a heavy load starves the hot turbo bearing of oil. Always allow the engine to idle for three to five minutes before key-off to let the oil cool the M11-C335 turbocharger.
Executing a Complete Engine Replacement
If you are wondering how to replace Cummins M11-C335 engine assemblies, the process requires careful preparation. As an experienced M11-C335 engine export supplier, we advise our clients to carefully inspect their existing cooling packages. Dropping a brand-new M11-C335 complete replacement engine into a machine with a clogged radiator will immediately lead to overheating. Always flush your hydraulic coolers and radiators prior to installation.
Common Misconceptions About the M11-C335
A frequent misconception in the industry is that mechanical engines are entirely obsolete and inefficient compared to modern common-rail systems. This is simply inaccurate for off-highway applications. While common-rail systems offer slightly better emissions, the Cummins M11-C335 mechanical fuel injection system offers unmatched resilience. In remote construction sites where high-quality fuel is unavailable, electronic injectors frequently fail. The PT fuel system can handle lower-grade fuels with higher sulfur content without suffering catastrophic downtime, making it the preferred choice for international export markets.
Securing the right power output is only the first step in maintaining your fleet. While the 335HP configuration is ideal for many heavy applications, your specific equipment may require different horsepower ratings or torque curves. To accommodate a wide variety of industrial and marine requirements, HekoPower supplies the complete range of this engine family.
Cummins M11-C Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes M11-C225, M11-C245, M11-C250, M11-C265, M11-C270, M11-C275, M11-C280, M11-C290, M11-C300, M11-C310, M11-C315, M11-C320, M11-C330, M11-C335, M11-C350.
Frequently Asked Questions (FAQs)
What is the lead time for a genuine Cummins M11-C335 engine assembly price quote?
As a leading M11-C335 engine supplier China, HekoPower typically provides comprehensive pricing, including freight estimates, within 24 hours. Pricing varies slightly depending on whether you require bare engines or complete power packs.
Can I get a detailed M11-C335 technical data sheet and performance curve?
Absolutely. We provide our clients with the official Cummins M11 335HP 1800RPM performance curve documents, allowing your engineering team to verify hydraulic pump compatibility before purchase.
Do you supply replacement components if I only need to rebuild my current engine?
Yes. Beyond selling the M11-C335 complete engine for sale, we are a comprehensive M11-C335 parts supplier. We provide access to the full M11-C335 engine parts catalog, including M11-C335 PT pump parts, overhaul kits, and the M11-C335 service manual to assist your mechanics.
What is the warranty coverage for the CCEC M11-C335?
We offer standard global warranty coverage on all our CCEC M11-C335 parts and warranty claims. This ensures your investment in a genuine replacement engine is fully protected against manufacturing defects.
