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Wd618.42 Weichai Diesel Engine for Trucks Construction and Industrial Machinery

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  • WD618.42

  • weichai

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The Weichai WD618.42 is a high-performance diesel engine renowned for its exceptional durability, reliable power, and fuel efficiency . Designed to meet the rigorous demands of heavy-duty applications, this engine combines robust construction with advanced technology to deliver consistent performance in the most challenging environments .

Its versatility and proven reliability make it a trusted power source for a wide range of machinery, from heavy-duty trucks to marine vessels and power generation sets .

 Key Technical Specifications

For a quick overview, here are the core specifications of the WD618.42 engine:

Parameter Specification
Engine Model Weichai WD618.42
Configuration 6-Cylinder, In-line
Aspiration Turbocharged and Charge-Air Cooled
Displacement 11.596 L
Bore × Stroke 101 mm × 126 mm (for 6L variant)
Rated Power 309 kW (420 HP) @ 2200 rpm
Max. Torque >1820 N.m @ 1400-1600 rpm
Fuel System High-Pressure Common Rail with Internal EGR
Emission Compliance EU Stage IIIA / US EPA Tier 3
Cooling Method Water-Cooled
*Note: Specifications like power output (235-320 kW) and displacement (6-11.6L) can vary depending on the specific model variant (e.g., WD618.42Q, WD618.42D) and application configuration . Refer to official technical data sheets for precise information.*

Primary Applications & Equipment

The Weichai WD618.42 engine is built to be the powerhouse behind a diverse array of heavy-duty equipment:

  • Heavy-Duty and Special Trucks: It is a key power source for Sinotruk Huanghe special off-road trucks (models JN2300A, JN2300B) and other heavy-duty transportation vehicles .

  • Marine Applications: Used for both main propulsion and auxiliary generator sets in marine vessels, with power ratings suitable for various boat sizes .

  • Power Generation: Serves as a reliable prime mover in diesel generator sets for prime, standby, and rental power applications .

  • Construction and Industrial Machinery: Its robust design makes it suitable for various heavy machinery, supported by a network providing parts for such equipment .

Core Technologies & Key Features

  • Advanced Turbocharging Technology: The engine is equipped with a high-efficiency turbocharger (such as the Holset GT45 model) . This system forces more air into the cylinders, significantly boosting power output and torque while optimizing combustion for improved efficiency .

  • High-Precision Common Rail Fuel System: Utilizing a Common Rail fuel injection system with Internal Exhaust Gas Recirculation (EGR) . This technology ensures precise fuel delivery and superior atomization, leading to optimized combustion, improved fuel economy (with minimum fuel consumption <202 g/kWh), and lower emissions .

  • Robust Engine Design for Longevity: Built for maximum durability, the engine features a sturdy construction. Its design contributes to low noise operation (<96 dB) and a long service life, ensuring reliability in tough conditions 

  • Global Support and Warranty: Backed by a professional after-sales department and a comprehensive warranty (e.g., 1 year warranty on core components ), ensuring prompt support and parts availability to maximize operational uptime .


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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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