1. Power & Powertrain System
The HOWO 371 6×4 tractor is powered by the mature WD615.47 diesel engine independently developed by SINOTRUK. This inline six-cylinder four-stroke turbocharged intercooled engine delivers 371 horsepower at 2000 rpm, with peak torque reaching 1500 N·m at low speed, providing powerful climbing and traction performance under heavy load. The engine structure is simple and durable, compatible with low-quality diesel fuel in overseas areas, and spare parts are cheap and globally available. Matched with HW19710 10-speed heavy-duty manual gearbox, the transmission torque capacity reaches 1900 N·m, perfectly matching heavy haul working conditions. It supports Euro II and Euro III emission configurations to satisfy different national import access standards.
2. Chassis & Load Bearing Structure
The vehicle adopts 6×4 three-axle layout: one front steering axle and two heavy-duty drive rear axles. The front HF9 axle supports 9 tons load, dual HC16 rear axles each bear 16 tons, with total chassis bearing capacity up to 41 tons. The frame uses high-strength manganese steel integral stamping beam, with strong torsion resistance and anti-deformation capability, adapting to bumpy mountain roads and poor pavement in Africa and Central Asia. Heavy-duty leaf spring suspension with thickened steel plates improves load stability and shock absorption. The 400L large-capacity aluminum fuel tank reduces refueling frequency for cross-country long-distance transport.
3. Cabin & Driving Configuration
Standard single sleeper HOWO classic cab with wide vision large split rearview mirror assembly, effectively eliminating blind spots during driving. The cab has good sealing and heat insulation performance; interior equipped with adjustable mechanical seats, integrated air conditioning, clear instrument panel and basic storage space to meet long-distance driving rest demands. Hydraulic power steering greatly reduces driver fatigue during long-hour operation. Optional accessories include radio, anti-slip foot pedals and external sun visor. The cab can be flipped forward for easy daily engine inspection and maintenance.
4. Applicable Scenarios & Market Advantages
This 371HP 6×4 tractor is the most cost-effective heavy tractor model for overseas export. It can be matched with container semi-trailers, flatbed semi-trailers, tanker semi-trailers, dump semi-trailers for container transportation, bulk grain, ore, cement, oil and other material haulage. The whole vehicle has low failure rate and ultra-low maintenance cost, which is highly favored by logistics fleets, mining companies and freight contractors in Africa, Middle East, Russia and Southeast Asia. Complete spare parts supply system in major overseas ports ensures fast after-sales support. Compared with high-horsepower new models, it has lower purchase price and higher fuel economy for medium-heavy transport tasks.
5. Safety Design
Equipped with dual-circuit air brake system with air storage tanks, emergency braking function and exhaust auxiliary brake to guarantee stable braking under full load. All tires adopt heavy-duty vacuum tires with strong puncture resistance; front and rear bumpers are thickened steel structure to enhance collision protection. Large integrated combination headlights ensure clear night driving vision. The whole vehicle meets international heavy truck safety structural standards for cross-border road transportation.
