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Heavy-duty dump truck Replacement Diesel Engine Assembly Weichai WP13.550E50

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  • WP13.550E50

  • weichai

发动机海报

The Weichai WP13.550E50 is a state-of-the-art 6-cylinder, in-line, four-stroke diesel engine renowned for its exceptional power output, superior fuel efficiency, and outstanding durability . With a substantial 12.54-liter displacement and featuring turbocharged and intercooled aspiration, this engine is engineered to deliver consistent and robust performance for the most demanding heavy-duty applications . Its advanced design, based on a highly versatile platform, makes it a trusted power source for top-tier commercial vehicles and machinery .

Key Technical Specifications

For a quick overview, here are the core specifications that define the WP13.550E50 engine's performance:

Parameter Specification
Configuration In-line, 6-Cylinder, 4-Stroke 
Aspiration Turbocharged and Intercooled 
Displacement 12.54 L 
Bore × Stroke 127 mm × 165 mm 
Rated Power 404 kW (550 HP) @ 1900-2100 rpm 
Max. Torque 2300-2500 N.m @ 1000-1500 rpm 
Compression Ratio 17:1 
Combustion System Electronically Controlled High-Pressure Common Rail 
Emission Standard Euro V 
Weight (Net Dry) Approx. 1060 kg 
Dimensions (L×W×H) ~1556 × 817 × 1094 mm 

Primary Applications & Equipment

The Weichai WP13.550E50 engine is built to be the powerhouse behind a range of high-performance heavy-duty equipment :

  • Heavy-Duty Trucks: It is a primary power source for medium and heavy-duty dump trucks (e.g., 8×4 configurations) and other heavy-duty transportation vehicles .

  • Construction Machinery: This engine is perfectly suited for 150-260 ton mobile cranes and 180-220 ton truck cranes, providing the necessary torque for demanding lifting and handling tasks .

  • Other Applications: The engine's reliable design also makes it suitable for various other industrial applications.

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, leading to superior fuel economy and lower emissions . The technical route includes SCR (Selective Catalytic Reduction) technology to meet stringent emission standards like Euro V .

  • Robust Engine Design for Longevity: Built for maximum durability, the engine features a sturdy construction . Its design contributes to high reliability and a long service life in tough conditions .

  • High Torque at Low RPM: The engine delivers massive torque (2300-2500 N.m) at a low RPM range (1000-1500 rpm) . This provides strong starting acceleration and superior pulling power, which is crucial for heavy-duty hauling and machinery operation .

  • Extended Service Intervals: The engine benefits from a long oil change period of 500 hours, which helps reduce maintenance frequency and overall operating costs .

  • Excellent Environmental Adaptability: Engineered to perform reliably in a broad range of ambient temperatures, from as low as -35°C to 50°C, ensuring operation in various climatic conditions .


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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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