Details
CCEC Cummins MTAA11-G2 60Hz Generator Engine (257kW)
The CCEC Cummins MTAA11-G2 is a heavy-duty, 11-litre diesel engine specifically engineered for high-demand power generation. As a premier engine supplier in China, HekoPower provides this genuine Cummins M-Series diesel engine directly to OEM generator builders, industrial facilities, and procurement teams worldwide. Tuned specifically for 60Hz markets, this engine delivers a rated output of 257kW at 1800 RPM, making it the backbone of dependable 250kW generator sets.
We offer the complete MTAA11-G2 engine assembly with a standard 12-month warranty. With flexible payment terms including T/T, L/C, and Western Union, our export lead time is strictly managed to around 15 to 30 business days to keep your production or replacement schedule on track.
Tech Specs of Cummins MTAA11-G2 60Hz engine
General Engine Data
Engine Model: Cummins MTAA11-G2-60HZ
Type: 6 Cylinders in Line, 4 Stroke Diesel
Displacement: 10.8 L
Bore * Stroke: 125 * 147
Net Weight: 1007 Kg
Overall Dimension: 1306mm*914mm*1280mm
Key Performance Data
Rated Power, Standby Output: 257 kW, 283 kW
Rated Speed: 1800 rpm
Low Idle Speed: 675-750 rpm
Fuel Consumption @ Rated Power: 59 L/Kw.h
Max. Running Altitude: 1500 m
More Technical Data
Fuel System: Cummins PT Pump, Direct Injection
Aspiration: Turbocharged/Charge Air Cooled
Compression Radio: 16.1:1
Lowest Starting Temp (Without auxiliary system): -12℃
Cooling Method: Water Cooled
Governor Type: Mechanical Control, ≤ 5%
Engine Coolant Volume: 9.5 L
Electrical System (Starter Motor/Alternator): 24V
MTAA11-G2 vs. Standard M11 Models: A Technical Comparison
Many competitor websites simply copy and paste the same specifications across all M11 variants. However, a major difference exists when you compare the MTAA11-G2 G-Drive engine to standard automotive or marine M11 configurations.
The G-Drive specific MTAA11-G2 features a specialized electronic governor designed to maintain strict frequency regulation (isochronous control) under sudden load changes. While a standard vehicle engine allows RPM to fluctuate during acceleration, this Cummins MTAA11-G2 1800 rpm generator engine is locked to a steady speed. This precise RPM control ensures that the 60Hz electrical frequency output remains perfectly stable, protecting sensitive electronics connected to the generator.
Real Application Scenarios
The versatility of the Cummins MTAA11-G2 prime power application is vast, but it truly excels in specific industrial environments.
In the mining sector, continuous power is non-negotiable. Mining operators frequently buy Cummins MTAA11-G2 generator engines to power ventilation systems and dewatering pumps where grid electricity is unavailable. The engine's high tolerance for varying fuel qualities makes it ideal for these remote locations.
Additionally, this model serves as an exceptional backup power solution for manufacturing plants and healthcare facilities in 60Hz regions. When grid power fails, the MTAA11-G2 can accept a massive initial load step, restoring power to critical infrastructure within seconds. This rapid response time is a direct result of the Holset wastegate turbocharger spooling up quickly to provide the necessary air for sudden fuel injection.
Common Misconceptions About 60Hz Generator Engines
A frequent misconception we encounter is that any standard 50Hz (1500 RPM) engine can simply be adjusted to run at 60Hz (1800 RPM) by tweaking the fuel pump. This is a dangerous oversimplification.
Running an engine at 1800 RPM requires specific structural considerations regarding piston speed, cooling fan ratios, and vibration harmonics. The genuine CCEC Cummins MTAA11-G2 for sale on this page is factory-calibrated for 1800 RPM continuous duty. Attempting to artificially over-rev a 1500 RPM engine will result in excessive fuel consumption, overheating, and premature failure of the main bearings.
Fuel Consumption and Performance Efficiency
Engineers analyzing the Cummins MTAA11-G2 257kW 1800RPM performance curve will notice a distinct plateau in torque that allows for excellent load acceptance. The fuel consumption for the Cummins MTAA11-G2 60Hz is highly competitive for its class.
At a 100% prime power load, the engine utilizes every drop of fuel efficiently due to the high-pressure atomization of the PT injectors. Operating at a 75% load often yields the best brake specific fuel consumption (BSFC) ratio, providing an excellent balance of power output and diesel economy. This makes the wholesale Cummins MTAA11-G2 diesel engine a highly cost-effective choice for long-term prime power generation.
Maintenance Schedule and Replacement Advice
To maximize the lifespan of your Cummins MTAA11-G2 engine for a diesel generator set, adhering to a strict maintenance schedule is critical.
Oil and filter changes should generally occur every 250 to 500 hours depending on the oil quality and environmental dust levels. However, the most overlooked maintenance item is the cooling system. Because the MTAA11-G2 is a turbocharged aftercooled engine, keeping the intercooler fins free of debris is vital. If the intercooler becomes clogged, intake temperatures rise, causing the engine to derate its power output to protect itself.
When it comes to replacement parts for the Cummins MTAA11-G2 generator engine, always insist on genuine OEM components. As an authorized supplier, HekoPower provides exact-match PT fuel pumps, injectors, and camshaft bushings. Using aftermarket injectors often leads to poor atomization, resulting in black smoke, carbon buildup on the valves, and eventual engine failure.
Export Logistics: Dimensions and Wholesale Availability
Procurement teams need accurate logistics data to calculate shipping costs. The CCEC MTAA11-G2 engine dimensions and packing weight are optimized for standard container freight. The engine is secured on an export-grade wooden pallet, wrapped in moisture-barrier materials to prevent corrosion during ocean transit. The dry weight of the engine is carefully balanced to allow for easy maneuverability by forklift upon arrival at your facility.
Because we are a direct Cummins MTAA11-G2 engine supplier in China, our export Cummins MTAA11-G2 generator engine process is streamlined. Once payment (T/T or L/C) is cleared, our factory testing and export crating take roughly 15 to 30 business days. We provide complete commercial invoices, packing lists, and certificates of origin to ensure smooth customs clearance at your destination port.
Cummins M11-G Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes MTAA11-G2-50HZ, MTAA11-G2-60HZ, MTAA11-G2A-234KW, MTAA11-G3-282KW.
Frequently Asked Questions (FAQs)
What is the difference between prime and standby power for the MTAA11-G2?
The Cummins MTAA11-G2 standby power generator engine rating allows the engine to run at its absolute maximum capacity for emergency outages (usually capped at 200 hours per year). Prime power allows the engine to run continuously with variable loads, with a 10% overload permitted for one hour every twelve hours.
Can I get a custom Cummins MTAA11-G2 wholesale price?
Yes. HekoPower offers tiered pricing based on volume. If you are an OEM generator canopy builder looking for an MTAA11-G2 replacement engine supplier for bulk orders, please contact our sales team at sales@hekopower.com for a customized quotation.
Is the Cummins MTAA11-G2 60Hz generator engine specification suitable for paralleling?
Absolutely. When paired with the correct alternator and a digital synchronization controller, the steady 1800 RPM frequency provided by the electronic governor allows multiple MTAA11-G2 units to parallel perfectly on a single grid.
Where can I download the Cummins MTAA11-G2 technical specifications and data sheet?
Our engineering team can provide the official PDF data sheet, including the full performance curve, heat rejection data, and exhaust gas flow rates upon request. Please reach out via our contact form.
