Brand New Weichai Series Wp12.420 Mechanical Pump Engine for Dump Trucks

In harsh environments like mines, construction sites, and large-scale infrastructure projects, heavy-duty dump trucks serve as steel caravans, shouldering the most demanding transportation tasks. Their reliability and efficiency directly impact the progress and cost of entire projects. Behind all this lies the indispensable role of powerful, dependable, and efficient engines. Keluo understands this well and remains committed to delivering the finest power solutions to the market. Today, we introduce the Brand new Weichai series WP12.420 mechanical pump engine for dump trucks—a power core meticulously engineered for demanding applications like heavy-duty dump trucks. Building on a legacy of excellence and reliability, it aims to be your trusted partner in creating value.

The Weichai WP12 series engines have stood the test of time, boasting an extensive market presence and stellar reputation. This new WP12.420 mechanical pump engine features a displacement of 11.596 liters, employing an inline six-cylinder, water-cooled, four-stroke design with turbocharging, intercooling, and direct injection. It delivers a maximum output of 420 horsepower and peak torque of 1750 N·m, with its maximum torque range spanning 1200–1500 rpm. This ensures robust power delivery within the engine's primary operating range during heavy-load starts, hill climbs, or challenging terrain, guaranteeing transport efficiency.

For dump trucks, exceptional reliability is paramount. Inheriting the WP12 series' legendary dependability, this engine features a frame-type block and dry-type cylinder liner design for enhanced durability and a robust foundation. It has undergone rigorous bench testing and over 50 million kilometers of real-world vehicle road testing, proving its ability to withstand severe vibrations and shock loads in off-road conditions, effectively reducing failures and ensuring high uptime.

Superior economy directly impacts the user's operational profitability. Featuring mechanical pump technology, this engine boasts a relatively simple structure and easy maintenance. Its full-load minimum fuel consumption rate reaches 185 g/kW·h, indicating excellent fuel efficiency that helps reduce daily operational costs. Additionally, its low-speed high-torque characteristics deliver ample power within the commonly used RPM range, minimizing the need for frequent downshifting and further enhancing fuel economy.

Dump trucks frequently operate in extreme environments like high altitudes, high temperatures, and extreme cold. This engine demonstrates robust environmental adaptability. Its turbocharged intercooling technology ensures maintained intake efficiency even at high altitudes. Data shows the WP12 series exhibits negligible power loss at 2000 meters and keeps power reduction below 3% at 3000 meters, guaranteeing reliable power delivery in high-altitude regions. Additionally, it exhibits excellent cold-start performance, capable of normal operation at -15°C without auxiliary measures. With supplementary equipment, it can adapt to even more extreme low-temperature conditions.

Although this is a mechanical pump engine meeting China III emission standards, its technological application still reflects a commitment to performance. It features a 4-valve-per-cylinder design, optimizing intake and exhaust efficiency to enhance combustion effectiveness. The WP12 series also prioritizes NVH (Noise, Vibration, and Harshness) performance. Structural refinements reduce mechanical and combustion noise, improving the operator's environment despite the inherently noisy conditions of dump truck operations.

This Brand new Weichai series WP12.420 mechanical pump engine for dump trucks boasts a compact structure (external dimensions approximately 1611×817×1094mm) and a net weight of 1050kg, facilitating easy layout and installation on dump trucks. Its technology is relatively mature with a high degree of component commonality. This not only reduces manufacturing costs but also makes subsequent maintenance more convenient and cost-effective, making it particularly suitable for use in areas such as construction sites and mining zones where infrastructure may be less developed.

Keluo understands that an excellent engine is not merely a collection of specifications, but a deep understanding and fulfillment of user needs. We recommend the Weichai WP12.420 mechanical pump engine specifically for its reliability, power, economy, and outstanding environmental adaptability under extreme conditions. It is particularly suited for heavy-duty dump truck operators facing stringent emission standards (such as China III regions), harsh operating environments, and demanding requirements for robust powertrain durability and maintenance convenience.

We are confident that this engine, with its robust, resilient, and enduring reliability, will become the dependable powerhouse in your fleet. It will empower your business to navigate challenges steadily and create greater value.