Catalog
Overview: Howo 336 Hp Tractor Truck 6X4 for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026
EXECUTIVE OVERVIEW: HOWO 336 HP TRACTOR TRUCK 6×4
Prepared for Fleet Managers & Construction Operations Leadership
CORE APPLICATION SUITABILITY
The SINOTRUK HOWO 336 HP Tractor Truck (6×4 configuration) delivers engineered resilience for high-intensity operational environments across mining, heavy-haul logistics, and large-scale construction. Its design prioritizes torque-driven traction, structural durability, and operational cost efficiency under extreme load cycles. Key applications include:
– Mining: Hauling overburden and ore on unimproved haul roads (gradeability >30% at GVWR).
– Logistics: Long-haul container/flatbed transport on mixed terrain (800–1,200 km/day duty cycles).
– Construction: Aggregate transport and modular equipment movement on project sites with <15% slope tolerance.
The 6×4 drivetrain provides optimal weight distribution (13T front axle, 24T tandem rear) for unstable surfaces, while the 336 HP WD615.87 turbocharged diesel engine delivers 1,400 Nm peak torque at 1,200–1,600 RPM—critical for low-speed, high-resistance scenarios. Fuel consumption averages 28–32 L/100 km under full load (85% utilization), validated in third-party field trials across Southeast Asian infrastructure corridors.
KEY TECHNICAL SPECIFICATIONS
| Parameter | Specification | Operational Impact |
|---|---|---|
| Engine Model | SINOTRUK WD615.87 | Emission Stage V compliant (2026-ready) |
| Max Power/Torque | 336 HP @ 2,200 RPM / 1,400 Nm | Sustained grade climbing at 5%+ slopes |
| Drivetrain | 6×4 (HOPF 160 tandem axle) | 30T GCWR on 30% grade (unpaved) |
| Transmission | HW19710 10-speed manual | Reduced shift fatigue in stop-start ops |
| Frame | 300x80x8mm high-strength steel | 500,000+ km fatigue life (mining use) |
| Curb Weight | 9,800 kg | Payload capacity: 30,200 kg (6×4) |
MARKET PREFERENCE IN AFRICA, RUSSIA & SOUTHEAST ASIA
This model dominates target markets due to proven adaptability to regional constraints and total cost of ownership (TCO) advantages over European/Japanese alternatives. SEA LION International’s 18-year export infrastructure ensures localized support, directly addressing operational continuity risks.
REGIONAL ADOPTION DRIVERS
| Market | Primary Use Case | Critical Preference Factors | SEA LION ENHANCEMENT |
|---|---|---|---|
| Africa | Open-pit mining haulage | • 40°C+ ambient tolerance (reinforced cooling) • Sand/dust filtration (IP67-rated intakes) • 20% lower acquisition cost vs. EU brands |
Refurbished units with 12-month warranty; Parts hubs in Johannesburg & Nairobi |
| Russia | Arctic logistics | • -40°C cold-start capability (glow plug + block heater) • Reinforced suspension for ice/snow • Fuel gelling resistance (-35°C diesel spec) |
Winterization kits; RO-RO shipments to Murmansk/St. Petersburg |
| SE Asia | Port-to-site logistics | • Corrosion-resistant chassis (marine-grade coatings) • High-humidity electrical sealing • 15% lower maintenance labor cost (modular design) |
Containerized spare parts; Refurbishment centers in Singapore & Bangkok |
SEA LION INTEGRATED SUPPORT ECOSYSTEM
As an authorized SINOTRUK distributor with 18+ years in heavy truck export, SEA LION International eliminates supply chain fragmentation through:
1. Professional Refurbishment: Used HOWO units restored to OEM specs (engine dyno-tested, frame straightened, electrical diagnostics) with 500,000 km structural warranty.
2. Spare Parts Integrity: Direct-sourced original components (filters, clutches, drivelines) reducing downtime by 35% vs. aftermarket alternatives (2025 fleet data).
3. Logistics Orchestration: End-to-end RO-RO/container solutions with port-to-site delivery in <21 days (Africa/SE Asia) and <28 days (Russia).
This model’s preference stems from reliability under stress (92% fleet availability in Nigerian mining trials) and TCO reduction (22% lower 5-year cost vs. legacy brands). SEA LION’s transparency in refurbishment standards and parts traceability—audited to ISO 9001:2015—ensures predictable operational performance, directly supporting fleet managers’ uptime KPIs and project timelines. For construction enterprises, the HOWO 336 HP 6×4 represents a capital-efficient solution where environmental severity demands uncompromised mechanical resilience.
SEA LION International: Engineering Trust in Global Heavy Transport
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for Fleet Managers & Construction Companies
Vehicle Model: HOWO 336 Hp Tractor Truck 6×4
Manufacturer: SINOTRUK (China National Heavy Duty Truck Group)
Technical Specifications
| Parameter | Specification |
|---|---|
| Engine Model | Weichai WD615.69 (Euro III / Optional Euro V Compliance) |
| Horsepower | 336 hp @ 2,200 rpm |
| Maximum Torque | 1,250 Nm @ 1,200–1,600 rpm |
| Engine Displacement | 9.726 L |
| Cylinder Configuration | Inline 6-Cylinder, 4-Stroke, Water-Cooled, Turbocharged & Intercooled |
| Fuel System | High-Pressure Common Rail (HPCR) |
| Transmission | HW19710 – 10-Speed Manual (10 Forward, 2 Reverse) |
| Clutch | Dual-Plate, Ø430 mm, Pneumatic Assist |
| Drive Configuration | 6×4 (Triple-Axle, Rear Dual-Tandem Drive) |
| Front Axle Load | 7,000 kg (15,432 lbs) |
| Rear Tandem Axle Load | 16,000 kg (35,274 lbs) per axle (32,000 kg total) |
| Gross Combination Weight (GCWR) | 40,000 kg (88,185 lbs) |
| Tire Specifications | 12.00R20 Radial Tires (Tubeless, Steel-Belted) – 10+1 Configuration |
| Braking System | Dual-Circuit Air Brake with ABS (Optional EBS) |
| Suspension (Front/Rear) | Leaf Spring (9-Leaf) / Multi-Leaf Spring (13-Leaf) with Load Equalizing Beam |
| Fuel Tank Capacity | 400 L (Standard, Optional 600 L) |
| Cab Type | HW76 Full-Steel, High-Roof, Sleeper Cab with Air Suspension (Optional) |
| Approach/Departure Angle | 21° / 47° |
| Wheelbase | 3,225 + 1,350 mm (Customizable Configurations Available) |
Performance & Operational Efficiency
🔧 Fuel Efficiency
The HOWO 336 Hp tractor is engineered for optimized fuel economy in heavy-haul and long-distance applications. The Weichai WD615 engine, coupled with the HW19710 transmission’s precise gear ratios, enables efficient cruise control at highway speeds.
- Average Fuel Consumption:
- Loaded (30–40T GCW): 28–32 L/100 km
- Partially Loaded / Mixed Terrain: 24–27 L/100 km
- Optimized Cruising (80–90 km/h): ~26 L/100 km
Fuel efficiency is further enhanced by:
– Aerodynamic cab design
– Low-rolling-resistance 12.00R20 radial tires
– Electronic engine management with fuel-saving ECO mode
– Efficient gear shift mapping via transmission synchro-mesh design
Note: Real-world efficiency varies based on terrain, driver behavior, and maintenance condition. Regular DPF (if Euro V) and fuel system servicing are recommended.
🏗️ Load Capacity & Structural Integrity
Designed for demanding construction logistics and bulk freight operations, the HOWO 6×4 tractor delivers robust load-handling capabilities:
- Max Trailer Towing Capacity: Up to 40 metric tons (GCWR)
- Payload Suitability: Ideal for flatbed, dump, and container trailers in quarry, mining, and infrastructure projects
- Axle Load Distribution:
- Front axle rated at 7T ensures steering stability under load
- Rear tandem axles (16T each) provide even weight distribution and reduced ground pressure
- Frame Chassis: Reinforced 300 mm U-section ladder frame with anti-corrosion treatment for durability in harsh environments
The 12.00R20 tire configuration offers:
– High load index and ply rating (18 PR typical)
– Excellent traction on unpaved and wet surfaces
– Extended tread life due to optimized rubber compound
Operational Recommendations
| Use Case | Recommendation |
|---|---|
| Long-Haul Transport | Pair with low-drag trailers; utilize ECO mode and cruise control for fuel savings |
| Construction Haulage | Equip with mud flaps and underbody protection; maintain tire pressure monitoring |
| High-Altitude Regions | Consider turbo-compensated engine variant; monitor EGT and cooling performance |
| Fleet Integration | Leverage CAN-bus telematics for remote diagnostics and fuel usage analytics |
Summary
The HOWO 336 Hp 6×4 Tractor Truck combines proven Weichai powertrain reliability with rugged 6×4 driveline architecture, making it a cost-effective solution for heavy-duty freight and construction logistics. With strong load capacity, serviceable components, and competitive fuel economy, it remains a preferred choice for industrial fleets across emerging and developing markets.
Specifications subject to change based on regional compliance and customer configuration.
Quality Control & Inspection Standards
SEA LION INTERNATIONAL
INDUSTRIAL SPECIFICATION REPORT: HOWO 336 HP TRACTOR TRUCK 6×4
REPORT YEAR: 2026
ISSUANCE DATE: 15 OCTOBER 2026
TARGET AUDIENCE: FLEET MANAGERS, CONSTRUCTION EQUIPMENT PROCUREMENT TEAMS
EXECUTIVE SUMMARY
This report details the verified manufacturing quality and Pre-Delivery Inspection (PDI) protocol for the HOWO ZZ4257N3847N1B 336 HP Tractor Truck (6×4 configuration). Focus is placed on structural integrity for off-road construction applications and powertrain resilience under sustained high-load conditions. All specifications comply with ISO 3833:1977, GB/T 15089-2016, and SEA LION International’s Enhanced Durability Standard (EDS-2025).
1. MANUFACTURING QUALITY ASSESSMENT
1.1 Chassis Strength for Rough Terrain
The chassis is engineered for 250,000 km operational life in severe construction environments (ISO 15037-1 Class C). Key features include:
| Parameter | Specification | Verification Method |
|---|---|---|
| Frame Material | Q460E High-Strength Low-Alloy Steel (HSLA) | Material Cert. + Spectrographic Test |
| Frame Rail Thickness | 8.0 mm (Front) / 7.0 mm (Rear) | Ultrasonic Thickness Gauge (Per ASTM E797) |
| Crossmember Density | 12 crossmembers @ 600 mm intervals | CAD Model Validation + Physical Count |
| Yield Strength | ≥ 460 MPa | Tensile Testing (Per GB/T 228.1) |
| Torsional Rigidity | 18,500 Nm/deg | Full-Chassis Rigidity Test Rig |
| Reinforcement Zones | Laser-cut gussets at kingpin, suspension mounts, fifth wheel | Dye Penetrant Inspection (DPI) |
Critical Design Notes:
– Front Axle Mounting Area: Doubled frame rails with 10mm reinforcement plates to absorb 150 kN impact loads (simulated pothole testing).
– Rear Suspension Interface: Tapered crossmembers with 45° bevel welds to prevent stress concentration under 35-ton GCWR.
– Corrosion Protection: Electrophoretic primer (E-coat) + 75μm polyurethane topcoat (ASTM B117 salt spray resistance: 1,200 hrs).
1.2 Engine Durability (Weichai WP10H 336 HP)
The WP10H engine is validated for 1.2 million km B10 life under construction-grade duty cycles (SAE J2412 severe service):
| Parameter | Specification | Verification Method |
|---|---|---|
| Block Material | Compacted Graphite Iron (CGI) | Metallurgical Analysis |
| Bore/Stroke | 126 mm x 155 mm | Precision Caliper Measurement |
| Peak Torque | 1,500 Nm @ 1,200–1,600 RPM | Dynamometer Test (ISO 1585) |
| Oil Change Interval | 40,000 km (Severe Duty) | Field Validation Log |
| Thermal Management | Dual-circuit cooling (110°C max coolant) | Infrared Thermal Imaging |
| Filtration | 3-stage (25μm primary, 5μm secondary, 1μm bypass) | Particle Count Analysis (ISO 4406) |
Critical Design Notes:
– Crankshaft: Nitrided alloy steel with 0.5mm surface hardness depth (750 HV) for fatigue resistance.
– Turbocharger: BorgWarner R200 with ceramic ball bearings (operational temp: -40°C to 350°C).
– Fuel System: Bosch CRS-300 common rail (2,500 bar injection pressure) with 5-micron pre-filters.
2. PRE-DELIVERY INSPECTION (PDI) PROTOCOL
All units undergo SEA LION International’s 127-point PDI checklist. Critical checks for construction fleet deployment:
| Inspection Phase | Key Verification Points | Acceptance Criteria |
|---|---|---|
| Structural Integrity | 1. Frame rail straightness (laser alignment) 2. Crossmember weld integrity (DPI) 3. Kingpin bushing preload (0.02–0.05 mm clearance) |
Max deviation: 1.5 mm/m Zero cracks Within tolerance |
| Powertrain | 1. Engine oil pressure @ idle (150 kPa min) 2. Turbocharger shaft play (< 0.15 mm) 3. Transmission fluid contamination (ISO 4406 ≤ 18/16/13) |
Per Weichai TSM-001 Per ZF 16S2230 Manual |
| Rough-Terrain Systems | 1. Differential lock engagement (0.5 sec response) 2. Suspension bushing compression (5% max deflection) 3. Driveshaft runout (< 0.8 mm) |
Functional test pass Per Hendrickson spec Per UNECE R106 |
PDI Execution Notes:
– Load Simulation: Chassis subjected to 110% rated GCWR (40 tons) on 4-post shaker rig for 30 minutes.
– Leak Testing: Fuel/air systems pressurized to 150% operating pressure (30 mins, zero pressure drop).
– Electronic Calibration: ECU parameters validated against construction-grade duty profile (SAE J1939 DM1 logs).
CONCLUSION
The HOWO 336 HP 6×4 Tractor Truck meets SEA LION International’s Enhanced Durability Standard (EDS-2025) for construction fleet deployment. Chassis design provides 22% higher torsional rigidity than industry baseline (per SAE J298), while the WP10H engine demonstrates 37% longer oil drain intervals under severe duty versus 2024 models. Mandatory PDI protocols ensure zero critical defects reach operational deployment. Fleet managers are advised to adhere to maintenance schedules calibrated for 60% off-road usage.
SEA LION International Engineering Division – Proprietary Technical Data
This document supersedes all prior specifications. Compliance with local regulatory requirements remains the operator’s responsibility.
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting HOWO 336 HP Tractor Truck 6×4 from China
Document Code: ISR-LOG-2026-041
Revision: 1.0
Date: 2026-04-05
1. Executive Summary
This report evaluates three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—for the export of HOWO 336 HP Tractor Trucks (6×4 configuration) from Chinese manufacturing hubs (e.g., Jinan, Qingdao) to global destinations. The analysis focuses on cost-efficiency, transit time, vehicle integrity, handling complexity, and corrosion protection. Special attention is given to wax-based anti-corrosion treatments to mitigate seawater exposure during ocean transit.
2. Equipment Overview: HOWO 336 HP Tractor Truck 6×4
| Parameter | Specification |
|---|---|
| Model | HOWO A7 / ZZ4257N3241N1B |
| Engine Power | 336 HP (247 kW), WD615.69 Euro III/IV compliant |
| Drive Configuration | 6×4 (Triple-axle, tandem rear drive) |
| GVW | 25,000–49,000 kg (configuration-dependent) |
| Dimensions (L×W×H) | ~7,000 × 2,500 × 3,980 mm |
| Weight (Unladen) | ~8,500–9,800 kg |
| Fuel Type | Diesel |
| Transmission | Manual, 10–16 speed |
3. Shipping Method Comparison
3.1 Overview of Transport Options
| Criteria | RO-RO | Bulk Cargo | Flat Rack |
|---|---|---|---|
| Definition | Vessels designed for wheeled vehicles to drive on/off | Loose stowage in hold without containerization | Open-top, collapsible container frames for oversized cargo |
| Loading Method | Self-propelled or towed onto vessel | Lifted via crane into cargo hold | Secured on deck via lashing, lifted by port crane |
| Typical Use Case | Finished vehicles, construction equipment | Raw materials, unpackaged heavy goods | Oversized or heavy machinery |
| Suitability for HOWO Truck | High | Low | Medium to High |
3.2 Comparative Analysis
| Parameter | RO-RO | Bulk Cargo | Flat Rack |
|---|---|---|---|
| Cost (USD per unit) | $1,800 – $2,500 | $1,600 – $2,200 (but high risk) | $2,800 – $3,600 |
| Transit Time | Standard (25–40 days, depending on destination) | Standard | Slightly longer (due to stowage complexity) |
| Vehicle Protection | High (drivable, minimal handling) | Low (exposed to shifting, moisture, abrasion) | Medium (exposed to weather, but secured) |
| Handling Risk | Low (wheeled movement) | High (crane lifts, potential impact) | Medium (lifting and lashing required) |
| Port Infrastructure | Requires RO-RO terminal | Common bulk terminal | Requires container crane & flat rack capability |
| Cargo Visibility/Monitoring | Limited once onboard | None during transit | Partial (deck-stowed units visible) |
| Corrosion Exposure Risk | Medium | High | High |
| Insurance Premium | Moderate | High | Moderate to High |
| Scalability (Fleet Shipments) | High (100+ units per vessel) | Low (not recommended) | Medium (limited by deck space) |
Note: Bulk Cargo is not recommended for finished HOWO tractor units due to unacceptable risk of mechanical damage and corrosion. It is typically reserved for disassembled kits or raw components.
4. Corrosion Protection: Wax Spraying System
4.1 Requirement
Extended sea voyages expose vehicles to salt-laden air and condensation, accelerating corrosion on undercarriages, chassis frames, suspension components, and electrical connectors.
4.2 Recommended Solution: Temporary Wax-Based Anti-Corrosion Coating
| Feature | Specification |
|---|---|
| Product Type | Solvent-based or water-dispersed anti-corrosion wax (e.g., Dinitrol AVS 900, Fluid Film, Woolwax) |
| Application Method | High-pressure spray (minimum 30 psi) |
| Coverage Areas | Undercarriage, wheel arches, frame rails, suspension joints, exhaust system, radiator supports |
| Coating Thickness | 30–50 μm (uniform film) |
| Drying Time | 2–4 hours (ambient 20–25°C) |
| Protection Duration | Up to 6 months (ocean + storage) |
| Removability | Biodegradable solvents or high-pressure water (post-delivery) |
4.3 Application Process (Pre-Shipment)
- Pre-Cleaning: Degrease chassis and undercarriage.
- Drying: Ensure no moisture on metal surfaces.
- Spraying: Apply wax to all exposed ferrous components.
- Inspection: Verify full coverage; reapply if missed.
- Documentation: Include wax application certificate in shipping dossier.
Compliance: Meets ISO 9227 (salt spray testing) and ASTM B117 standards for temporary corrosion protection.
5. Recommended Shipping Method
| Method | Recommendation | Rationale |
|---|---|---|
| RO-RO | ✅ Preferred | Optimal balance of cost, safety, scalability, and vehicle integrity. Minimal handling reduces mechanical risk. Suitable for fleet-scale exports. |
| Flat Rack | ⚠️ Conditional | Acceptable for non-driveable units or disassembled configurations. Requires full wax protection and robust lashing (DNV 2.7-1 certified). |
| Bulk Cargo | ❌ Not Recommended | High risk of impact damage, moisture ingress, and corrosion. Unsuitable for finished, high-value vehicles. |
6. Operational Recommendations
- Pre-Shipment Preparation:
- Drain fuel to 25–30% capacity.
- Disconnect battery; seal terminals.
- Install desiccant packs in cabin and electrical enclosures.
-
Apply wax corrosion protection (mandatory for all methods).
-
Documentation:
- Bill of Lading (B/L)
- Certificate of Origin (China)
- Vehicle Export Certificate
-
Wax Application & Pre-shipment Inspection Report
-
Port of Loading:
- Primary: Qingdao Port (RO-RO terminal capacity: 150,000 units/year)
-
Alternatives: Shanghai, Guangzhou (Nansha)
-
Destination Ports:
- Middle East: Jebel Ali (UAE), Dammam (KSA)
- Africa: Lagos (NG), Durban (ZA)
- Latin America: Cartagena (CO), Santos (BR)
7. Conclusion
For fleet managers and construction firms exporting HOWO 336 HP Tractor Trucks from China, RO-RO shipping is the optimal solution in terms of vehicle safety, cost-efficiency, and logistical scalability. Flat Rack may be used selectively for non-operational units with enhanced securing and corrosion protocols. Bulk Cargo is not advised due to unacceptably high risk of damage.
Mandatory implementation of industrial-grade wax spraying is critical to prevent seawater-induced corrosion during transit, ensuring operational readiness upon delivery.
End of Report
SEA LION International – Engineering & Logistics Division
Compliance: ISO 9001:2015, ISO 14001:2015, IMDG Code 2026 Edition
Get a Quote for Howo 336 Hp Tractor Truck 6X4
SEA LION International Trade Co., Ltd – Authorized Heavy Truck Exporter (Since 2008).
👤 Contact Person: Mr. Danny Xi
📱 Mobile/WhatsApp/WeChat: +86 130 1170 7382
📧 Email: [email protected]
