The core upgrade of this HOWO 420HP Used Dump Truck lies in the power system. The configuration of 420 horsepower usually corresponds to a larger displacement or an enhanced version of the engine (such as Weichai WP12.420E62). Its design goal is to further optimize the power reserve and cycle efficiency under complex working conditions on the basis of the oversized load inherent in the 8×4 platform.

In order to match the enhanced power output and the greater impact that may be faced, the HOWO 420HP Used Dump Truck’s frame (especially the front lifting support area), the balance shaft and the steel plate spring have all adopted a higher-level reinforced design to ensure that the durability of the chassis structure after the power is upgraded.

The 420-horsepower engine is usually matched with a large center distance, multi-speed (such as 12 or 16-speed) gearboxes and a low-speed ratio two-stage deceleration rear axle (such as a speed ratio of 5.92 or more). This combination can efficiently convert huge engine torque into wheel-end traction, which is especially suitable for heavy-load start-up and continuous climbing.