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Cummins ISZ525-40 Engine – 13L 525HP Heavy Duty Diesel Engine for Trucks
The Cummins ISZ525-40 engine is a high-torque 13L diesel engine designed for demanding heavy-duty applications. As a professional supplier, HekoPower provides genuine DCEC ISZ525-40 diesel engines with stable performance, fast delivery, and global export support.
This ISZ13 525HP engine with XPI fuel system is widely used in long-haul trucking, mining operations, and high-load logistics, delivering strong torque output and optimized fuel efficiency.
Tech Specs of Cummins ISZ525-40
General Engine Data
Engine Model: Cummins ISZ525-40
Type: 6 Cylinders in Line
Displacement: 13 L
Bore * Stroke: 130 * 163
Net Weight (with flywheel & alternator): 1195 Kg
Overall Dimension: 1389mm*1016mm*1233mm
Key Performance Data
Rated Power: 392 kW/525 HP
Rated Speed: 2100 rpm
Idle Speed: 600-800 rpm
Max. Altitude For Continuous Running: 5200 m
orque/Rated Speed: 1782 N.m @ 2100 rpm
Max. Torque/Speed: 2508 N.m @ 1200 rpm
Max. No-Load Speed: 2300 rpm
More Technical Data
Certification: Euro IV
Aspiration: Turbocharged & Charge Air Cooled
Fuel System: Cummins XPI Fuel System/ECM
Compression Radio: 17:1
Electrical System (Starter Motor/Alternator): 24V (900A)
Lowest Starting Temp Without auxiliary system: -15℃/-30℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 23.1 L
Technical Mastery: ISZ525-40 Specifications & Torque Dominance
The DCEC ISZ525 13L 525HP heavy duty engine is designed for high-intensity work cycles. It is the heart of the Dongfeng Tianlong flagship series, providing a "Super Life" durability cycle where 30% of engines reach 800,000 km without an overhaul.
The XPI Fuel System Advantage
At the core of this engine is the Cummins XPI fuel system explained: a high-pressure common rail system that enables the ISZ525-40 max torque 2508Nm at 1200 rpm. Unlike traditional fuel systems, XPI provides high injection pressure across all engine speeds, resulting in a Cummins ISZ525-40 high-torque diesel engine that reduces gear hunting and improves ISZ525 fuel efficiency per km.
Turbocharged Charge Air Cooling
To maintain performance in varying air densities, the ISZ525-40 turbocharged charge air cooled engine utilizes advanced cooling technology. This ensures a dense oxygen charge to the cylinders, which is the secret behind the ISZ525-40 engine for 5200m high-altitude operation.
Built for Extremes: Altitude and Cold Start Reliability
HekoPower understands that our customers operate in the world’s most challenging environments. We provide the ISZ525-40 engine for high-altitude mining operations—a HekoPower solution that guarantees power delivery where oxygen is thin.
-36°C Extreme Cold Start Performance
Ignition reliability in frigid climates is non-negotiable. Our 24V -30°C cold start Cummins ISZ525-40 diesel engine configuration is supported by a 7.8 kW high-power starter. This ensures the ISZ525-40 cold start performance at -36°C extreme low temperature is achievable for fleets operating in northern latitudes or high-altitude plateaus.
4 Valves Per Cylinder Advantages
The 4 valves per cylinder Cummins 525HP engine advantages include superior breathing capacity and vertical injector placement. This symmetry leads to better fuel atomization and a more robust ISZ525-40 torque curve and fuel efficiency profile compared to older 2-valve designs.
Applications of Cummins ISZ525-40 Engine
Long-Haul Trucking
The Cummins ISZ525 long haul truck engine is ideal for:
- Logistics fleets
- Highway transportation
- Fuel-efficient long-distance operations
Mining and Construction Equipment
The ISZ525 engine for mining dump trucks offers:
- High torque output
- Reliable heavy-load performance
Commercial Vehicles
- Suitable for Dongfeng Tianlong trucks
- Compatible with buses and heavy commercial vehicles
Logistics, Shipping, and Total Cost of Ownership
As your DCEC ISZ525-40 13L 525HP engine supplier, HekoPower optimizes the entire procurement process. We offer a buy original DCEC ISZ525-40 with 10-business-day lead time guarantee for urgent fleet repairs.
Export Shipping Dimensions and Weight
For international freight planning, the ISZ525-40 engine net weight 1195kg export shipping profile is critical. We provide secure, export-grade packaging with ISZ525-40 engine shipping dimensions 1389x1016x1233mm. Whether you are a Cummins ISZ525-40 engine price USA supplier or a local fleet manager, our logistics team ensures a seamless delivery.
Maintenance Guide and Service Intervals
To minimize your ISZ525 maintenance cost and service interval, we recommend strictly adhering to the ISZ525-40 engine coolant capacity 23.1L maintenance guide. HekoPower also supplies the ISZ525-40 engine overhaul kit genuine parts wholesale to keep your ISZ525 diesel engine for fleet operations running at peak performance.
Why Choose HekoPower for Your ISZ525-40?
When you buy ISZ450-40 engine with warranty from HekoPower, you are choosing a partner that offers a 12-month warranty on all original DCEC units.
- Fast Lead Time: We are a fast lead time ISZ525-40 engine supplier for urgent mining and logistics needs.
- Complete Packages: We can provide a complete ISZ525-40 engine package: ECU, wiring harness, and mounts included.
- Global Expertise: From ISZ525 vs ISX 600 performance comparison to ISZ525 vs ISZ480 engine comparison, our engineers provide the technical clarity you need.
DCEC ISZ Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes ISZ425-40, ISZ450-40, ISZ480-40, ISZ525-40.
