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Weichai Original Engine WP13 WP13.500E501 for marine propulsion

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  • WP13

  • weichai

发动机海报

The Weichai WP13 is a high-performance, 6-cylinder, in-line, four-stroke diesel engine renowned for its exceptional durability, reliable power, and superior fuel economy . With a substantial 12.54-liter displacement and featuring turbocharged and intercooled aspiration , this engine is engineered to deliver consistent and robust performance across a wide range of heavy-duty applications, from construction sites to power generation and marine propulsion .

Its versatile design, based on a robust framework and advanced combustion technology, makes it a trusted power source for OEMs and operators in various demanding industries .

Key Technical Specifications

For a quick overview, here are the core specifications that define the WP13 engine's performance:

Parameter Specification
Configuration In-line, 6-Cylinder, 4-Stroke
Displacement 12.54 L
Bore × Stroke 127 mm × 165 mm
Aspiration Turbocharged and Intercooled
Rated Power Range 251 kW - 405 kW (approx. 340 hp - 550 hp), varies by application
Max. Torque Up to 2700 N.m (for advanced WP13H variant)
Compression Ratio 17:1 or 18:1 (varies by model)
Combustion System Electronically Controlled High-Pressure Common Rail
Emission Compliance Configurable for China Non-Road Stage III/IV, IMO Tier II, and others

Note: Power output, dimensions, and weight can vary depending on the specific model and application configuration (e.g., industrial, marine, vehicle) .

 Primary Applications & Equipment

The Weichai WP13 engine is a versatile powerhouse, designed to be the driving force behind a wide array of heavy machinery:

  • Power Generation: Serves as a high-cost-effective prime mover for 250-400kW land-use generator sets .

  • Construction Machinery: Ideally suited for 8-10 ton loaders used in ports and mines, and other heavy equipment like excavators and cranes .

  • Heavy-Duty Trucks: Provides robust power for high-efficiency logistics and transportation, with power models tailored for various road conditions .

  • Marine Applications: Used for main propulsion and auxiliary power in vessels such as inland river transport boats, fishing boats, and workboats .

Core Technologies & Key Features

  • Advanced Combustion Technology: The engine utilizes an Electronically Controlled High-Pressure Common Rail system . This ensures precise fuel injection and optimal combustion. Advanced variants also employ Collaborative Combustion Technology that enhances combustion speed by 30% for greater power and efficiency .

  • Robust Engine Design for Longevity: Built for maximum durability, the engine features a high-strength body and key components . Coordinated Design Technology strengthens the overall system, increasing its ability to withstand high combustion pressures by about 60% . This contributes to a long service life, with some vehicle variants boasting a B10 life of over 1.8 million kilometers .

  • Exhaust Energy Distribution Technology: This innovation meets exhaust gas recirculation needs while also improving turbine efficiency, helping the engine comply with strict emission regulations and further enhancing thermal efficiency .

  • Patented Zonal Lubrication Technology: A unique Weichai technology that reduces overall friction by 20% by applying different friction reduction techniques to specific engine areas. This increases mechanical efficiency and lowers oil consumption .

  • Intelligent Control Technology: Leveraging a proprietary ECU, the engine uses predictive models for precise control over key components like the high-pressure common rail and turbo wastegate, ensuring efficient and stable operation across all conditions .

  • Enhanced Cooling & High-Altitude Capability: The engine is equipped with a double-curved surface fan for high air volume, low power consumption, and low noise . It is also designed to maintain performance at altitudes over 4,000 meters .


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KELUO is a company of machinery, engines, used equipment and spare parts founded by Hanhan in combination with HANJIU, Elephant in the industry.
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