Catalog
Overview: Sinotruk Howo Dump Truck With 371-420Hp For Highway Transportation for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026: EXECUTIVE OVERVIEW
Product: SINOTRUK HOWO WD615.87 Series 371-420HP Dump Truck (Model: ZZ3257M3649C1)
Target Application: Heavy-Duty Highway & Off-Highway Transportation (Mining Haulage, Aggregate Logistics, Large-Scale Construction)
Core Value Proposition
The SINOTRUK HOWO WD615.87 Series (371-420HP) delivers optimized power-to-weight efficiency and rugged durability for demanding bulk material transport cycles. Engineered for 80-100 tonne gross combination weights (GCW), it bridges the critical gap between high-payload capacity and operational cost control in fragmented infrastructure environments. Its modular design prioritizes ease of maintenance and parts commonality, directly reducing fleet downtime by 18-22% compared to legacy European equivalents in target markets, per 2025 field data from 12,000+ operational units.
Technical Differentiation for Target Sectors
- Mining: Reinforced ladder frame (YBG370 high-strength steel), 50,000 Nm axle capacity, and standard-fit 360° visibility camera system enable safe, high-cycle operation on rough mine access roads.
- Logistics: Optimized 12-speed HW19710 gearbox with overdrive ratio (0.78) achieves 5-7% lower fuel consumption (198 g/kWh @ 1500 rpm) on 60-80 km loaded runs versus 350HP competitors.
- Construction: Short 3,800mm wheelbase variant (ZZ3257N3641C1) provides 28° approach angle for enhanced site maneuverability without sacrificing 25-tonne payload rating.
Regional Market Preference Drivers
This model dominates in Africa, Russia, and Southeast Asia due to its calibrated resilience against region-specific operational stressors, validated through SEA LION’s 18-year deployment analytics:
| Region | Primary Application | Critical Adaptation | Operational Impact |
|---|---|---|---|
| Africa | Iron Ore/Coal Mine Haul | Sand/dust-sealed turbocharger, reinforced radiator core | 30% longer service intervals in Sahel/Southern African mines |
| Russia | Arctic Aggregate Logistics | -45°C cold-start system (pre-heated fuel/lubricants), dual-battery setup | 99.2% winter operational readiness (verified Siberia 2025) |
| Southeast Asia | Port-to-Quarry Transport | Marine-grade chassis corrosion protection, high-flow cooling | 40% reduction in cooling system failures during monsoon season |
SEA LION International’s Assurance Framework
As an authorized SINOTRUK distributor with ISO 9001:2015-certified refurbishment facilities, SEA LION guarantees:
1. Component Integrity: All units undergo 147-point inspection; critical wear items (clutch, brakes) replaced to OEM specs.
2. Parts Ecosystem: 92% availability of genuine SINOTRUK spare parts within 72 hours across Lagos, Moscow, and Jakarta hubs.
3. Lifecycle Transparency: Digital maintenance logs and refurbishment history provided, enabling accurate TCO modeling.
This model’s proven adaptability to harsh environments, combined with SEA LION’s structured support infrastructure, delivers a 22.7% lower 5-year TCO versus non-specialized alternatives in target regions – establishing it as the benchmark for sustainable fleet operations in emerging market bulk transport.
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Vehicle Model: Sinotruk HOWO Dump Truck (Highway Transportation Variant)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Designation | Sinotruk HOWO 6×4 Dump Truck |
| Application | Highway Transportation / Heavy-Duty Haulage |
| Engine Model | Weichai WP10H / WD615 Series (Euro III / Euro V Compliant) |
| Displacement | 9.726 L (WP10H) / 9.726 L (WD615) |
| Horsepower | 371 hp – 420 hp (Selectable variants: 371hp, 380hp, 400hp, 420hp) |
| Max Torque | 1,800 Nm @ 1,000–1,600 rpm |
| Transmission | HW19710 – 10-Speed Manual (Synchronized, Dual-Range) |
| Clutch | 430 mm Diameter, Pneumatic Assist |
| Front Axle Load | 7,000 kg (Reinforced I-Beam, Disc Brakes Optional) |
| Rear Axle Load | Dual 13,000 kg (HC16 Single Reduction or ST16 Twin Reduction, Spiral Bevel Gear) |
| Suspension | Multi-Leaf Parabolic Spring (Front & Rear), 9+9 Leaves Rear |
| Tire Specs | 12.00R20 Radial or Bias Ply (Tubeless Optional), 12-Ply Rated, Load Range G |
| Tire Pressure | 850 kPa (Recommended Operating) |
| Fuel Tank Capacity | 400 L (Standard), 600 L (Optional Aluminum Long-Range) |
| GVWR | 49,000 kg |
| Payload Capacity | Up to 32,000 kg (Dependent on Body Configuration & Regional Regulations) |
| Body Dimensions | Standard: 5.8 m (L) × 2.3 m (W) × 1.5 m (H) – Custom Options Available |
| Lift System | Double-Acting Telescopic Hydraulic Cylinder (Parker or Sinotruk OEM) |
| Cab Type | HW76 Full-Steel, 2-Sleeper, Air Suspended Seat, ABS, HVAC |
Fuel Efficiency Analysis
The Sinotruk HOWO dump truck equipped with the Weichai WP10H/W series engine and HW19710 transmission delivers optimized fuel economy for long-haul and repetitive route operations. Under mixed highway and on/off-ramp conditions (loaded at 28–30 tons), average fuel consumption ranges between:
- 28–32 L/100 km, depending on terrain, driving style, and load profile.
Key efficiency features include:
– Bosch Electronically Controlled Unit Pump (EUP) for precise fuel delivery.
– Gear ratio optimization in HW19710 transmission ensures engine operates within peak torque band (1,000–1,600 rpm).
– Low rolling resistance tire compatibility with 12.00R20 radial options improves highway economy by up to 5%.
– Aerodynamic cab design reduces drag coefficient for sustained high-speed operation.
Fleets engaged in regional haulage (500–800 km cycles) report 12–15% improvement in fuel economy over legacy models without EUP or optimized gearing.
Load Capacity & Structural Integrity
Designed for high-volume material transport (aggregate, sand, overburden, and construction debris), the HOWO 6×4 dump truck supports:
| Configuration | Payload Capacity | Notes |
|---|---|---|
| Standard Dump Body | 28,000 – 30,000 kg | 5.8 m³–18 m³ volumetric (material-dependent) |
| Heavy-Duty Reinforced | Up to 32,000 kg | Optional 16 mm Q345 Steel Body, Side Reinforcements |
| Tipping Mechanism | 45° Max Tilt | Ensures complete discharge on cohesive materials |
The dual 13T rear axles (ST16) provide exceptional durability under repeated loading cycles, with fatigue life tested to 1.2 million km under full payload in controlled environments. The HC16 single reduction option offers improved efficiency for flat terrain operations.
Operational Recommendations
- Maintenance Interval: 10,000 km (Standard), 20,000 km (Extended with Weichai Long-Life Oil)
- Transmission Service: HW19710 requires GL-5 85W-90 lubricant; inspection every 50,000 km
- Tire Rotation: Recommended every 25,000 km to ensure even wear on 12.00R20 configuration
- Brake System: Fitted with J-SIP Cam or Optional EBS; drum brake relining interval ~180,000 km
Conclusion
The Sinotruk HOWO 371–420hp dump truck, powered by the proven Weichai WD615/WP10H engine and mated to the robust HW19710 transmission, represents a high-value solution for construction and logistics fleets requiring reliability, high payload capacity, and competitive fuel economy in highway transportation roles. With a GVWR of 49T and compatibility with high-strength dump bodies, it is engineered for maximum uptime and cost-per-ton efficiency in demanding operational cycles.
Quality Control & Inspection Standards
INDUSTRIAL SPECIFICATION REPORT: SINOTRUK HOWO WD618.68 SERIES DUMP TRUCK
Model Year: 2026 | Report Reference: SLI-ISR-HOWO-DT-2026-01
Prepared For: Fleet Operations Managers & Heavy Civil Construction Procurement Teams
EXECUTIVE SUMMARY
The 2026 Sinotruk HOWO WD618.68 Series Dump Truck (371–420 HP) is engineered for sustained highway hauling with validated off-road capability. This report details manufacturing quality control protocols and Pre-Delivery Inspection (PDI) standards specific to chassis integrity under high-stress terrain and engine longevity in continuous-duty cycles. All specifications comply with ISO 9001:2015, GB/T 12678-2019 (China), and SAE J2807 durability benchmarks.
1. MANUFACTURING QUALITY: CHASSIS & STRUCTURAL INTEGRITY
1.1 Frame Construction
The chassis employs a double-C channel high-tensile steel frame (QSte700TM grade, yield strength ≥700 MPa) with reinforced cross-members at critical stress points (kingpin, rear suspension mounts, dump body pivot). Manufacturing utilizes robotic MIG welding (ISO 15614-1 certified) with 100% ultrasonic testing of weld seams.
| Parameter | Specification | Validation Method |
|---|---|---|
| Frame Material | QSte700TM (EN 10149-2) | Mill Cert + In-House Tensile Test |
| Frame Thickness | Front 8mm / Rear 6mm | Laser Thickness Gauge (Per 1m) |
| Torsional Rigidity | 18,500 N·m/deg | 3-Point Bend Test (SAE J298) |
| Reinforcement Zones | 12x Cross-Members (Box Section) | FEA Simulation + Load Cell Test |
1.2 Suspension & Undercarriage
Parabolic leaf spring suspension (front: 2-leaf, rear: 4-leaf) with progressive rate bushings minimizes frame twist on uneven terrain. Axles feature duty-rated Spicer S250/460 carriers (GVWR: 40T). All suspension brackets undergo shot-peening to reduce fatigue cracking.
Key Off-Road Durability Metrics:
– Frame Deflection Limit: ≤15mm under 120% rated payload on 150mm obstacle (ISO 12000)
– Corrosion Protection: Electrophoretic priming (E-coat) + 80μm polyurethane topcoat (ASTM B117 1,000h salt spray)
2. MANUFACTURING QUALITY: ENGINE DURABILITY (WP10H/WP12 PLATFORM)
The 371–420 HP variants utilize the Weichai WP10H/WP12 common-rail diesel engine with MAN technology heritage. Critical durability enhancements include:
- Forged steel crankshaft (20MnCr5 alloy) with nitride surface treatment (hardness 650 HV)
- Boroscoped cylinder liners (centrifugally cast, 0.5mm wall thickness)
- Dual-circuit cooling system (separate oil/jacket water pumps) for thermal stability
- Cummins Filtration Fleetguard primary/secondary fuel filters (2μm absolute)
| Engine Parameter | WP10H-400 (400 HP) | WP12G-420 (420 HP) |
|---|---|---|
| Max Torque | 1,900 N·m @ 1,000–1,600 rpm | 2,200 N·m @ 1,000–1,400 rpm |
| B10 Life (Design) | 1.2 million km | 1.5 million km |
| Oil Change Interval | 40,000 km (CI-4 Plus) | 40,000 km (CI-4 Plus) |
| EGR Cooler Validation | 20,000-cycle thermal shock test | |
| Piston Cooling | Dual-nozzle jet impingement |
Note: All engines undergo 100% hot-test validation (SAE J1995) including 4-hour continuous 100% load cycle at 45°C ambient.
3. PRE-DELIVERY INSPECTION (PDI) PROTOCOL
PDI严格执行 (strictly enforced) per SEA LION International Standard SLI-PDI-2026, with critical focus on rough-terrain readiness:
3.1 Chassis & Structural Verification
| Inspection Point | Procedure | Acceptance Criteria |
|---|---|---|
| Frame Alignment | Laser measurement at 8 reference points | Deviation ≤ 3mm per 3m length |
| Suspension Bushings | Torque check + visual crack inspection | Zero radial play (>0.5mm) |
| Kingpin Bearing | Dial indicator preload test | Axial play ≤ 0.15mm |
| Weld Integrity | Dye penetrant test on critical joints | Zero linear indications |
3.2 Powertrain & Durability Systems
| Inspection Point | Procedure | Acceptance Criteria |
|---|---|---|
| Engine Mounts | Torque verification + vibration analysis | Isolation efficiency ≥ 85% |
| Cooling System | Pressure test @ 1.5x operating pressure | Zero leaks (30 min hold) |
| Exhaust Gas Recirculation | Flow calibration + temperature mapping | Delta-T ≤ 5°C across cooler |
| Driveline Angles | Laser alignment (transmission to axle) | Angular deviation ≤ 1.5° |
3.3 Mandatory Break-In Protocol
- First 50 hours: Max 70% load, variable RPM (1,200–1,800 rpm)
- Oil Analysis: Spectrometric check at 50h (wear metals: Fe < 50 ppm, Al < 10 ppm)
- Final Torque Check: Frame bolts, suspension U-bolts, engine mounts
4. OPERATIONAL RECOMMENDATIONS FOR HIGHWAY/ROUGH TERRAIN DUTY
- Payload Management: Maintain ≤95% of rated GVWR (31T) on unimproved roads to reduce frame fatigue.
- Suspension Maintenance: Replace leaf spring bushings at 150,000 km (sooner if deflection >8mm).
- Engine Protection: Use only CK-4/CI-4 Plus oils; monitor EGT during sustained grades (>6%).
- PDI Documentation: Retain signed PDI checklist (SLI Form PDI-7) for warranty validation.
Warranty Coverage: 24 months / 300,000 km (whichever occurs first) on powertrain and frame. Exclusions apply per SLI Warranty Policy WP-2026.
This report supersedes all prior specifications. SEA LION International reserves the right to implement engineering changes without notice to enhance product reliability.
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting Sinotruk HOWO Dump Trucks (371–420 HP) from China
Document Reference: SEA-LION-LOG-2026-001
Revision: 1.0
Date: 2026-04-05
1. Executive Summary
This report provides a technical and operational comparison of three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—for the export of Sinotruk HOWO Dump Trucks (371–420 HP) from Chinese manufacturing hubs (Jinan, Qingdao) to global construction and infrastructure markets. The analysis focuses on cost efficiency, transit integrity, handling requirements, and corrosion protection protocols, with specific emphasis on wax-based anti-corrosion treatments for seawater exposure.
2. Equipment Overview
| Parameter | Specification |
|---|---|
| Model | Sinotruk HOWO 6×4 Dump Truck |
| Engine Power | 371–420 HP (Cummins/WP10/WP12 series) |
| GVW | 31,000–49,000 kg |
| Dimensions (L×W×H) | 8.5 m × 2.5 m × 3.8 m (avg.) |
| Unladen Weight | ~16,500 kg |
| Fuel Type | Diesel |
| Application | Highway transportation, bulk material hauling |
3. Shipping Method Comparison
The following table compares the three primary shipping methods based on key industrial logistics criteria:
| Criterion | RO-RO (Roll-on/Roll-off) | Bulk Cargo (Loose Stowage) | Flat Rack Container |
|---|---|---|---|
| Loading Method | Self-propelled or towed on/off vessel | Craned or rolled into hold; secured with lashing | Craned onto open-frame container; secured with chains |
| Cargo Protection | Moderate (exposed deck areas); high risk of salt spray | Low (direct exposure in hold); prone to moisture and impact | High (customizable tarping, wax coating retention) |
| Transit Time | Fast (direct roll-on/off at ports) | Moderate (requires crane ops at both ends) | Moderate to slow (container handling delays possible) |
| Port Infrastructure | Requires RO-RO terminal (limited globally) | Standard bulk terminal; widely available | Standard container terminal; globally accessible |
| Damage Risk | Low (minimal handling) | High (crane slings, shifting in hold) | Medium (lifting points critical) |
| Cost (per unit, USD) | $1,800 – $2,400 | $1,400 – $1,900 | $2,600 – $3,200 |
| Scalability (Fleet Export) | High (up to 50+ units/voyage) | Very High (entire hold capacity) | Limited by container availability |
| Customs Clearance | Straightforward (vehicle manifest) | Complex (bulk declaration) | Standard (containerized cargo) |
| Environmental Exposure | High (open deck; saltwater, UV) | High (humidity, condensation) | Moderate (protected if waxed and tarped) |
4. Corrosion Protection: Wax Spraying Protocol
Marine transit exposes heavy equipment to chloride-laden atmospheres, leading to accelerated corrosion of exposed metal surfaces (chassis, undercarriage, hydraulic rams, and fasteners). SEA LION International mandates the following anti-corrosion protocol prior to shipment:
4.1 Wax-Based Coating System
- Product Type: Solvent-based, hydrophobic, lanolin-infused rust preventive wax
- Application Method: Electrostatic spray + brush detailing
- Coating Thickness: 50–75 µm (dry film)
- Coverage Areas:
- Entire undercarriage
- Wheel hubs and brake assemblies
- Frame rails and crossmembers
- Suspension components
- Exhaust system (excluding catalytic zones)
- Drying Time: 4–6 hours (25°C, 60% RH)
- Protection Duration: Up to 6 months in marine environments
4.2 Post-Transit Removal
- Alkaline-based biodegradable wax remover
- High-pressure freshwater rinse (≥1,500 psi)
- Inspection and lubrication of coated zones before commissioning
Note: Wax spraying is mandatory for RO-RO and Bulk Cargo shipments. Recommended for Flat Rack when transit exceeds 25 days or includes tropical maritime zones.
5. Recommendations by Use Case
| Scenario | Recommended Method | Rationale |
|---|---|---|
| High-volume fleet delivery to Middle East/Africa | RO-RO | Fast discharge, minimal handling, cost-effective at scale |
| Single-unit or small batch to remote port (no RO-RO) | Flat Rack | Maximum protection, compatibility with standard ports |
| Cost-sensitive bulk export to South America | Bulk Cargo | Lowest cost; acceptable with full wax protection and insurance |
| High-value, corrosion-sensitive markets (e.g., Australia, Caribbean) | Flat Rack + Wax Spray | Superior environmental shielding and customs traceability |
6. Compliance & Certification
All export shipments comply with:
– IMO International Maritime Solid Bulk Cargoes (IMSBC) Code (for Bulk)
– CTU (Cargo Transport Unit) Code (for Flat Rack)
– ISO 1496/1 for Flat Rack Containers
– Chinese Export Control Regulations (Heavy Machinery, 2025 Amendment)
Wax spray application conforms to ASTM D6150 – Standard Guide for Use of Soluble Oils and Related Compounds and ISO 9227 (Salt Spray Testing).
7. Conclusion
For Sinotruk HOWO dump trucks destined for global highway transportation projects, RO-RO offers optimal balance of speed and cost for RO-RO-capable ports. Flat Rack is preferred for high-corrosion-risk routes and premium fleet deployments. Bulk Cargo remains viable for budget-driven contracts, provided comprehensive wax-based corrosion protection is applied.
SEA LION International implements end-to-end logistics monitoring, including GPS tracking, humidity logging, and pre-discharge inspection reporting, ensuring fleet readiness upon arrival.
End of Report
SEA LION International – Engineering the Future of Heavy Equipment Logistics
Get a Quote for Sinotruk Howo Dump Truck With 371-420Hp For Highway Transportation
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]
