Overview
The Sinotruk Howo 371 6×4 Dump Truck is a classic heavy-duty engineering vehicle from Sinotruk‘s renowned HOWO series, widely used in mining operations, urban construction, earthmoving projects, and large-scale infrastructure development. With its proven reliability, powerful performance, and exceptional load capacity, this model has become one of Sinotruk’s flagship export products to Africa, Southeast Asia, the Middle East, and South America .
Powered by the WEICHAI WD615.47 engine delivering 371 horsepower, paired with the Howo HW19710 10-speed transmission, the vehicle features the industry-recognized “golden powertrain.” The 6×4 drive configuration is equipped with HC16 double-reduction drive axles (2×16,000 kg) with a large gear ratio of up to 5.73, providing outstanding wheel-end torque output to easily handle heavy-load climbing and challenging road conditions .
The dump body volume ranges from 18 to 28.5 cubic meters, customizable according to specific requirements. The cab features HW76 or TX series high-roof design with 4-point full-floating suspension and air-suspended driver seat, effectively reducing operator fatigue. The vehicle complies with Euro II emission standards, with Euro V options available to meet different export market requirements .
Key Features
| Feature | Description |
| 371HP Powerful Engine | Powered by WEICHAI WD615.47 diesel engine, displacement 9.726L, maximum output 371HP (273kW), peak torque up to 1,460-2,500 N·m. Ample power reserve ensures excellent heavy-load starting and climbing performance . |
| 6×4 Dual-Drive Configuration | Dual rear drive axles equipped with HC16 or MCP16ZG hub reduction axles, each rated at 16,000 kg, total load capacity of 32,000 kg, providing superior traction and heavy-load stability . |
| 5.73 Large Gear Ratio Rear Axle | Rear axle gear ratio up to 5.73 (or 5.92), significantly increasing wheel-end torque output. Combined with wheel and axle differential locks, ensures excellent passability in harsh conditions such as mines and construction sites . |
| HC16 Hub Reduction Axle | Double-reduction structure (central single reduction + hub reduction) increases ground clearance and wheel-end torque, suitable for heavy-load and harsh road conditions . |
| Heavy-Duty Reinforced Chassis | 300×80×8mm U-profile parallel ladder frame with reinforced subframe. Front axle uses VGD95 9.5-ton I-beam steering axle, rear suspension uses 11-12 leaf thickened leaf springs, ensuring high load capacity and durability . |
| 10-Speed Manual Transmission | Howo HW19710 10-speed manual transmission with twin-countershaft design. First gear ratio of 14.28 provides strong starting torque. Equipped with HW50 power take-off (PTO) to reliably power the hydraulic lifting system . |
| Multiple Dump Body Options | Dump body volume range: 18-28.5 cubic meters. Floor thickness 8mm, side thickness 6mm. Front lifting or middle lifting options available to meet different engineering requirements . |
| HW76 Comfort Cab | 4-point fully floating cab suspension with shock absorbers. Air-suspended driver seat, automatic air conditioning, electric windows effectively reduce fatigue during long and high-intensity operations . |
| Durable Steel-Belted Tires | Standard 12.00R20 steel-belted radial tires (10+1 pieces), wear-resistant and puncture-resistant, suitable for harsh operating environments such as mines and construction sites . |
| Multiple Emission Standards | Available in Euro II, Euro III, and Euro V emission standards to meet different export market environmental regulations . |
Specifications with Explanation
Basic Specifications
| Parameter | Specification | Explanation |
| Model Designation | ZZ3257M2941 / ZZ3257N3847N1 / ZZ3257N4647A | Official chassis model codes for 6×4 dump trucks. Different codes correspond to different wheelbase and dump body configurations . |
| Drive Configuration | 6×4 | Three-axle layout with front steering axle and dual rear drive axles. Dual drive axles provide superior traction and heavy-load stability . |
| Overall Dimensions (L×W×H) | 8,170-11,800 × 2,500-2,550 × 3,450-3,550 mm | Dimensions vary by dump body configuration and wheelbase. Standard configuration length approx. 8.5 meters, width approx. 2.5 meters . |
| Wheelbase | 3,825+1,350 mm / 4,300+1,350 mm / 4,647+1,350 mm | Multiple wheelbase options available to accommodate different dump body lengths and load requirements . |
| Curb Weight | 12,000 - 15,200 kg | Curb weight varies by configuration, approx. 12-15.2 tons . |
| Rated Load | 18,500 - 45,000 kg | Effective payload capacity ranges from 18.5 to 45 tons depending on chassis and dump body configuration . |
| Gross Vehicle Weight | 25,000 - 31,000 kg | Maximum permissible gross vehicle weight . |
| Maximum Speed | 75-95 km/h | Designed for dump truck applications; speed reduces accordingly under heavy loads . |
Engine Specifications
| Parameter | Specification | Explanation |
| Engine Model | WD615.47 | WEICHAI inline 6-cylinder water-cooled diesel engine, a classic Sinotruk model with high market presence and ample parts availability . |
| Displacement | 9.726 L | Large displacement provides ample power reserve and excellent low-end torque characteristics . |
| Maximum Horsepower | 371 HP (273 kW) | Sufficient power output to meet heavy-duty dump truck operating requirements . |
| Maximum Torque | 1,460 - 2,500 N·m | High torque output ensures strong starting and climbing capability under heavy loads . |
| Torque RPM Range | 1,100 - 1,600 rpm | Wide economical RPM range maintains good fuel economy under heavy-load conditions . |
| Emission Standards | Euro II / Euro III / Euro V | Multiple emission options available. Euro II/Euro III are mainstream for export; Euro V suitable for markets with stricter requirements . |
| Fuel Type | Diesel | Standard diesel configuration . |
| Technical Features | Turbocharged, water-cooled, direct injection | Ensures complete fuel combustion, improving power and economy . |
Transmission Specifications
| Parameter | Specification | Explanation |
| Transmission Model | HW19710 | Sinotruk self-developed 10-speed manual transmission with twin-countershaft design for high load capacity . |
| Number of Gears | 10 forward + 2 reverse | 10-speed design provides refined gear ratio distribution; first gear ratio is large, suitable for heavy-load starting . |
| Power Take-Off (PTO) | HW50 direct PTO | Provides power to the hydraulic lifting system for dump truck operation; high reliability . |
| First Gear Ratio | 14.28 | Large gear ratio design provides strong starting torque . |
| Reverse Gear Ratios | 13.91 / 3.18 | Two reverse gear ratios to accommodate different backing conditions . |
Chassis & Drivetrain
| Parameter | Specification | Explanation |
| Front Axle Model | VGD95 / HF9 | German MAN technology front axle with I-beam section design, rated at 9.5 tons or 9 tons . |
| Front Axle Permissible Load | 9,000 - 9,500 kg | Meets heavy-duty operating requirements . |
| Rear Axle Model | HC16 / MCP16ZG | Double-reduction axle (hub reduction) with 16,000 kg per axle, total 32,000 kg . |
| Rear Axle Permissible Load | 16,000 kg/axle (total 32,000 kg) | Strong load capacity suitable for heavy-duty dump truck applications . |
| Rear Axle Ratio | 5.73 / 5.92 | Large gear ratio design significantly increases wheel-end torque output, ideal for heavy-load climbing . |
| Suspension Type | Leaf spring | Front 10-11 leaf, rear 11-12 leaf thickened leaf springs with high load capacity . |
| Frame | U-profile parallel ladder frame | 300×80×8mm high-strength frame with reinforced subframe; cold riveted construction . |
| Steering System | ZF 8098 / ZF 8118 power steering | German ZF technology with hydraulic power assistance for easy operation . |
| Propeller Shaft | Double universal joint | Gear-shaped coupling flange for reliable torque transmission . |
Dump Body & Lifting System
| Parameter | Specification | Explanation |
| Dump Body Dimensions (L×W×H) | 5,400-7,300 × 2,300-2,500 × 1,450-1,700 mm | Multiple sizes available to meet different engineering requirements . |
| Dump Body Volume | 18 - 28.5 cubic meters | Standard configuration approx. 20 m³; large configuration up to 28.5 m³ . |
| Floor Thickness | 8 mm | High-strength wear-resistant steel plate suitable for heavy-load operation . |
| Side Thickness | 6 mm | High-strength wear-resistant steel plate . |
| Lifting Method | Front lift / Middle lift | HYVA hydraulic cylinder or high-quality domestic cylinder options available . |
| Lifting System | Hydraulic lift | PTO drives hydraulic pump, which activates the lift cylinder . |
Tires & Brakes
| Parameter | Specification | Explanation |
| Tire Specifications | 12.00R20 | Steel-belted radial tires, wear-resistant and puncture-resistant, suitable for harsh road conditions . |
| Number of Tires | 10 + 1 pieces (including spare) | Standard configuration for 6×4 dump trucks . |
| Service Brake | Dual-circuit compressed air brake | Independent dual circuits ensure braking safety . |
| Parking Brake | Spring energy storage air brake | Acts on rear axles for safety and reliability . |
| Auxiliary Brake | Engine exhaust brake | Effectively reduces brake wear, ensures safe long downhill driving . |
| ABS Anti-lock System | Optional | WABCO valves improve braking stability . |
Cab & Comfort Features
| Parameter | Specification | Explanation |
| Cab Type | HW76 / TX-F / A7-W | High-roof or semi-high-roof design with spacious interior . |
| Cab Suspension | 4-point fully floating + shock absorbers | Effectively filters road vibrations, significantly reducing driver fatigue . |
| Driver Seat | Air-suspended driver seat | Multi-adjustable, effectively absorbs road vibrations . |
| Sleeper Berth | Single sleeper | Provides rest space for shift operations . |
| Air Conditioning System | Manual or automatic A/C | Maintains comfortable cabin temperature . |
| Comfort Features | Power windows, heated mirrors, central lock, adjustable steering wheel | Improved operating convenience . |
| Electrical System | 24V negative ground | Dual batteries (2×12V/165Ah), 28V/1500W alternator . |
| Seating Capacity | 2 persons | Standard configuration . |
Fuel System
| Parameter | Specification | Explanation |
| Fuel Tank Capacity | 300L - 500L | Aluminum alloy or steel fuel tank depending on configuration . |
| Estimated Fuel Consumption | Approx. 35-40 L/100km | Actual consumption varies based on load, road conditions, and driving habits . |
Applications
| Application | Suitability |
| Mining Operations | 371HP power combined with HC16 hub reduction axles and 5.73 large gear ratio provides excellent wheel-end torque, easily handling uphill heavy loads in mines. 12.00R20 steel-belted tires are wear and puncture resistant, adapting to harsh mine roads. Recommended configuration: 5.73 ratio + 11-12 leaf rear springs + heavy-duty dump body . |
| Urban Construction / Earthmoving | 6×4 drive configuration offers good passability. 18-20 m³ dump body volume suitable for urban construction spoil and sand/gravel transport. Optional environmental covers meet city environmental requirements. Air-suspended seat and A/C reduce driver fatigue . |
| Large Infrastructure Projects | Strong load capacity with gross vehicle weight up to 31 tons and rated load over 18.5 tons. Dump body with 8mm floor and 6mm side high-strength steel plates adapts to various materials including sand, gravel, soil, and ore . |
| Road Construction / Material Transfer | Reasonable wheelbase design with moderate turning radius suitable for short-haul yard transport and road construction material transfer. Different dump body sizes available for various material requirements . |
| Export to Africa/Southeast Asia | Howo 371 dump truck is a best-selling export model to Africa, Southeast Asia, and the Middle East. Available in Euro II/Euro III emission standards, left-hand or right-hand drive, adapting to different country road regulations. After-sales service networks cover major export markets . |
| Heavy-Duty Medium-Haul Material Transport | Equipped with 300-500L large capacity fuel tank for extended range, suitable for medium-haul heavy-load transport from mines to stockyards . |
Comparison Table
| Configuration | Standard Mining Edition | Urban Construction Edition | Export Premium Edition |
| Model Designation | ZZ3257N3847N1 | ZZ3257M2941 | ZZ3257N4647A |
| Engine | WD615.47 (371HP) | WD615.47 (371HP) | WD615.47 (371HP) / optional 400HP |
| Emission Standard | Euro II | Euro III / Euro V | Euro II / Euro V |
| Transmission | HW19710 (10-speed) + HW50 PTO | HW19710 (10-speed) + HW50 PTO | HW19710 (10-speed) + HW50 PTO |
| Front Axle | VGD95 (9.5 tons) | HF9 (9 tons) | VGD95 (9.5 tons) |
| Rear Axle | HC16 / MCP16ZG (16T×2) | HC16 (16T×2) | MCP16ZG (16T×2) |
| Rear Axle Ratio | 5.73 | 5.73 / 5.92 | 5.92 |
| Suspension (Front/Rear) | 11-leaf / 12-leaf | 10-leaf / 11-leaf | 11-leaf / 12-leaf |
| Tires | 12.00R20 steel-belted | 12.00R20 / 12R22.5 | 12.00R20 steel-belted |
| Dump Body (L×W×H) | 5,800×2,300×1,500mm (20m³) | 5,400×2,300×1,450mm (18m³) | 7,300×2,300×1,700mm (28.5m³) |
| Floor/Side Thickness | 8mm / 6mm | 8mm / 6mm | 8mm / 6mm (thickened optional) |
| Lifting Method | Front lift | Middle lift | Front lift (HYVA) |
| Cab | HW76 high-roof, air seat | HW76 standard roof, mechanical seat | A7-W high-roof, air seat, auto A/C |
| Fuel Tank | 300L steel | 300L aluminum | 400L aluminum |
| Safety Features | ABS (optional), exhaust brake | ABS, exhaust brake | ABS, exhaust brake, rear camera (optional) |
| Recommended Use | Mining operations, heavy-load transport | Urban construction, earthmoving | Export markets, large infrastructure |
| Reference Price | US$10,000 - 14,000 | US$12,500 - 14,000 | US$14,000 - 38,000 |
Note: Prices are for reference only. Specific configurations subject to actual vehicles. Custom configurations available based on customer requirements.
Buying Guide
1. Select Configuration Based on Operating Conditions
| Condition Type | Recommended Configuration | Explanation |
| Mining / Heavy-Load Climbing | 5.73 ratio + HC16 hub reduction axle + 12.00R20 steel-belted tires + 11/12 leaf springs + front lift | Maximum wheel-end torque output; adapts to harsh roads and heavy-load climbing. Recommend reinforced frame and dump body . |
| Urban Construction / Spoil Transport | Standard ratio + leaf springs + optional environmental cover + middle lift | Adapts to urban roads, meets environmental requirements. Euro V emission available. 18-20 m³ dump body . |
| Large Infrastructure / Sand & Gravel Transport | Standard configuration + large volume dump body (28.5m³) + large fuel tank | Increases single-trip transport efficiency; reduces refueling frequency . |
| Export to Africa/Southeast Asia | Euro II emission + LHD/RHD optional + 12.00R20 steel-belted tires + front lift | Adapts to export market requirements; high parts commonality; low maintenance cost . |
| Heavy-Duty Medium-Haul Material Transport | Large fuel tank (400-500L) + comfortable cab + air-suspended seat | Reduces refueling frequency; reduces driver fatigue . |
2. Powertrain Selection
Engine Selection:
371 HP (WD615.47): Standard configuration for most applications; ample power, good economy
400 HP: Higher power version for more demanding heavy-load conditions
Transmission Selection:
Rear Axle Ratio Selection:
5.73: Maximum wheel-end torque; suitable for mining, construction sites, and heavy-load climbing
5.92: Even larger wheel-end torque; suitable for extreme heavy-load conditions
3. Dump Body & Lifting System Selection
Dump Body Volume Selection:
18-20 m³: Suitable for urban construction, spoil transport
20-25 m³: Suitable for general mining, infrastructure projects
25-28.5 m³: Suitable for large mines, heavy-load transfer
Lifting Method Selection:
Front Lift: High lifting force, good stability; suitable for heavy loads and large dump bodies
Middle Lift: Simple structure, lower cost; suitable for standard loads
Dump Body Plate Thickness:
4. Cab Selection
Mining/Heavy-Load Operations: Recommend HW76 high-roof cab with air-suspended driver seat and automatic A/C; 4-point fully floating suspension effectively reduces operator fatigue
Urban Construction Operations: Standard cab sufficient; reduces initial purchase cost
Export Premium Configuration: Optional A7-W high-roof cab with richer features
5. Emission Standard Selection
| Emission Standard | Applicable Markets | Description |
| Euro V | Export markets with stricter environmental requirements | Suitable for countries/regions with emission requirements |
| Euro III | Southeast Asia, Africa, Middle East export markets | Mainstream export configuration, meets most market requirements |
| Euro II | Markets with lenient emission requirements | Most common export configuration; cannot be registered in China |
Important Note: Euro II and Euro III emission models are primarily for export markets. Confirm destination country environmental policies before purchase.
6. Tire Selection
| Tire Type | Features | Applicable Scenarios |
| 12.00R20 Steel-Belted | High wear resistance, good puncture resistance, suitable for harsh roads | Mining, construction sites, heavy-load transport |
| 12R22.5 Tubeless | Low rolling resistance, good fuel economy, suitable for urban roads | Urban construction, road transport |
| 315/80R22.5 | Wide base tire, large contact area, good stability | Heavy-load road transport |
7. New vs. Used Vehicle Purchase Considerations
New Vehicle Purchase:
Full warranty coverage (key components typically 1 year)
Customizable configurations, latest emission standards available
Production lead time: 20-45 working days after deposit
Payment methods: T/T (30% deposit, balance before shipment) or L/C
Used Vehicle Purchase:
8. Export Purchase Special Considerations
Howo 371 dump truck is a popular export model with established sales networks in Africa, Southeast Asia, the Middle East, and South America
Driving Position: Left-hand drive or right-hand drive available to adapt to different country road regulations
Understand destination country certification requirements (e.g., GCC, SONCAP, EAC, etc.)
Confirm packaging and shipping methods: RoRo, container, or bulk vessel available. Standard export packaging includes anti-corrosion treatment and rain cover
Logo Customization: Vehicle logo and color customization available
Minimum Order Quantity: 1 unit
Delivery & Certification
Delivery Information
| Delivery Type | Details |
| Domestic Delivery | Typically ready for pickup within 15-30 business days after order confirmation. Customized configurations may require longer lead times. |
| Export Delivery | FOB (Qingdao Port, Shanghai Port, Tianjin Port, China main ports) or CIF terms supported. Shipping methods: RoRo, container, bulk vessel . |
| Packaging | Standard export packaging: anti-corrosion treatment + rain cover. Complete export documentation provided. |
| Lead Time | Export orders typically require 20-45 working days preparation depending on order quantity and configuration . |
| Minimum Order Quantity | 1 unit |
Certifications
| Certification Type | Details |
| Domestic Certification | CCC (China Compulsory Certification) compliant for domestic models. |
| International Certification Support | Certification assistance available based on destination country requirements: |
| - GCC Certification (Gulf Cooperation Council countries) |
| - SONCAP Certification (Nigeria and select African countries) |
| - EAC Certification (Eurasian Economic Union) |
| - ISO 9001 Quality Management System Certification |
| - SGS / BV Third-Party Inspection Certification |
| Emission Compliance | Euro II, Euro III, Euro V options available with corresponding compliance documentation . |
Warranty Information
| Component | Warranty Period | Description |
| Vehicle Warranty | 1 year | Free parts replacement, including parts shipping and repair service costs . |
| International Service | Video technical support, online support | Timely after-sales service response for overseas customers |
