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Cummins L315-30 Diesel Engine for Trucks | 315HP 8.9L Commercial Power
The Cummins L315-30 diesel engine is a reliable 315HP 8.9L power unit designed for heavy-duty commercial vehicles, including trucks and buses. As part of the Cummins L Series engine family, this model is widely used in Dongfeng truck replacement projects and other logistics transport applications.
At HekoPower, we supply original DCEC Cummins L315-30 engine assemblies with stable performance, fast delivery, and strict quality control. This engine is engineered for durability, fuel efficiency, and consistent output under demanding operating conditions such as long-distance freight and high-load transportation.
Tech Specs of Cummins L315-30
General Engine Data
General Engine Data
Engine Model: Cummins L315-30
Type: 6 Cylinders in Line
Displacement: 8.9 L
Bore * Stroke: 114 * 145
Net Weight (with flywheel & alternator): 650 Kg
Overall Dimension: 1149mm*799mm*1022mm
Key Performance Data
Rated Power: 231 kW/315 HP
Rated Speed: 2200 rpm
Max. Torque/Speed: 1150 N.m @ 1400 rpm
Max. No-load Governed Speed: 2500 rpm
Idle-Speed: 700±100 rpm
Max Continuous Running Altitude: 3000 m
Fuel Consumption @ Rated Power: 225 g/Kw.h
More Technical Data
Certification: Euro II
Aspiration: Turbocharged & Air-Air Intercooled
Fuel System: BOSCH P7100 Pump/RVQ-K Governor
Compression Radio 16.6:1
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: 11.1 L
Key Technical Features and Performance Advantages
High-Efficiency Fuel System (BOSCH P7100)
The Cummins L315-30 is equipped with a BOSCH P7100 fuel injection pump, ensuring precise fuel delivery and stable combustion. This contributes to lower fuel consumption, with approximately 225g/kWh at rated power.
Reliable 8.9L Platform
With a displacement of 8.9 liters, the engine delivers strong torque output, making it ideal for heavy-duty trucks and commercial vehicles requiring consistent pulling power.
Adaptability to Harsh Conditions
The engine is capable of stable operation in environments up to 3000 meters altitude, making it suitable for diverse global markets and working conditions.
Applications of Cummins L315-30 Engine
The Cummins L315-30 diesel engine is widely used in:
- Heavy-duty trucks for long-distance logistics
- Dongfeng truck engine replacement
- Commercial buses and passenger transport systems
- Construction and industrial transport vehicles
Its robust structure and reliable performance make it one of the best 315HP Cummins engines for trucks in demanding industries.
Comparison: Cummins L315-30 vs. ISL 8.9 & L300-20
L315-30 vs L300-20
Compared to the L300-20, the L315-30 offers slightly higher horsepower and improved torque output, making it more suitable for heavy-load applications.
L315-30 vs ISLe310
While both engines belong to the 8.9L platform, the L315-30 focuses on mechanical reliability with the BOSCH P7100 system, whereas ISLe310 uses electronic control for emission compliance.
Cummins L315-30 vs ISL 8.9 Series Comparison
When choosing an engine, the decision often comes down to the Cummins L315-30 vs ISL 8.9 series comparison. While the ISL series represents Cummins' newer generation of engines with advanced electronics, the L315-30 remains a staple for its mechanical simplicity and ease of maintenance. The L Series is often preferred for Dongfeng truck replacement due to its legacy fitment and robust mechanical governor systems.
Cummins L vs M Series Engine Analysis
Understanding the difference between the Cummins L vs M Series engine is crucial for maintenance and upgrades. The L Series (like the L315-30) is the predecessor to the M11. While the M11 offers higher power density, the L315-30 holds a significant advantage in aftermarket parts availability and repair cost, making it a cost-effective solution for operators seeking Cummins L315-30 engine price competitiveness.
How to Choose the Right Cummins 8.9L Engine
When selecting a Cummins L Series engine, consider:
- Application type (truck, bus, industrial use)
- Required horsepower and torque
- Emission standards (Euro II / Euro III)
- Maintenance and spare parts availability
The L315-30 is ideal for buyers prioritising durability, mechanical simplicity, and cost efficiency.
Maintenance & Support
Owning a Cummins L Series engine means investing in longevity. To keep your Cummins L315-30 engine assembly running smoothly, we recommend adhering to the official maintenance schedule. For technical support, we can provide the Cummins L315 30 Euro III technical specification PDF and answer common questions regarding how to maintain Cummins L Series engines. We also address common inquiries such as "is Cummins L315-30 reliable" and document common problems with Cummins L315 to help you troubleshoot effectively.
Supply Advantages from HekoPower
As a professional engine supplier, HekoPower offers:
- Genuine DCEC Cummins L315-30 engine assemblies
- Competitive wholesale pricing
- Fast delivery (typically within 10 business days)
- 12-month warranty for commercial applications
We support global customers with reliable supply solutions for Cummins diesel engines.
Cummins L Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes L270-30, L290-30, L300-20, L315-30, L325-20, L340-20, L360-20, L360-30, L375-20, L375-30.
