Sinotruk 6×4 HOWO 400HP Used Tractor Truck  is a power-upgraded flagship model launched by Sinotruck for the high-efficiency standard-load trunk logistics market. It raises the power to 400 horsepower on the classic 6×4 three-axle platform, aiming to provide an efficient solution with both abundant power and excellent economy for logistics users who pursue higher average speed, stronger adaptability to complex road conditions, and have strict requirements for time limit.

The core logic of this HOWO 400HP Used Tractor Truck is “moderately ahead of power”. Compared with the popular 371 horsepower model, the 400 horsepower (about 294kW) provides about 8% power gain. This is not simply the pursuit of parameter leadership, but to make the engine workload lower and more calm when responding to long-distance ramps, plateau lines or higher average speed requirements, so as to achieve better transportation time limit, fuel economy and engine durability as a whole.