Pre-Owned Sinotruk HOWO 6×4 371HP Tractor Truck JOST Fifth Wheel HW19710 Transmission Long-Haul Prime Mover
Used Sinotruk HOWO 6*4 371HP Tractor Truck Overview
This pre-owned Sinotruk HOWO 6*4 tractor truck is powered by the proven WD615.47 371-horsepower inline six-cylinder diesel engine coupled to an HW19710 10-speed manual transmission. The vehicle is configured for heavy-duty semi-trailer towing operations including container chassis haulage, lowbed trailer transport of construction machinery, and general freight logistics. The high-strength frame and double-reduction rear axles provide dependable traction for both highway cruising and job-site maneuvering. This tractor unit has been part of a professionally managed commercial fleet with documented preventive maintenance intervals and comes with a current inspection certificate. Fifth-wheel coupling plate wear is within manufacturer service limits and all pneumatic and electrical trailer connections are fully functional.
Tractor Unit Detailed Parameters
| Parameter | Specification |
|---|---|
| Brand & Model | Sinotruk HOWO 6*4 Tractor Truck |
| Engine Type | WD615.47, Inline 6-Cylinder, Water-Cooled, Turbocharged & Intercooled |
| Rated Power Output | 371 HP / 273 kW @ 2200 rpm |
| Maximum Torque | 1500 N·m @ 1100-1600 rpm |
| Engine Displacement | 9.726 L |
| Emission Compliance | Euro II |
| Transmission Model | HW19710 Manual, 10 Forward + 2 Reverse Gears |
| Drive Configuration | 6*4 (Rear Tandem Drive Axle) |
| Rear Axle Ratio | 5.73 (Double Reduction Hub Reduction Axle) |
| Fifth Wheel (Coupling) | JOST JSK37C 2-Inch Kingpin, 90mm Coupling Height |
| Fifth Wheel Load Rating | 18,000 kg Vertical Load |
| Gross Combination Weight | Up to 55,000 kg (Tractor + Trailer) |
| Tractor Gross Vehicle Weight | 25,000 kg |
| Tractor Curb Weight | 8,800 kg |
| Wheelbase | 3225 + 1350 mm |
| Front Axle Load Rating | 7,000 kg |
| Rear Tandem Axle Rating | 2 * 16,000 kg |
| Fuel Tank Capacity | 400 L (Aluminum Alloy) |
| Tire Size | 12R22.5 (16PR) Tubeless Radial |
| Suspension Type (Rear) | Semi-Elliptical Leaf Spring with Double-Acting Shock Absorbers |
| Cabin Description | HOWO HW79 High-Roof Sleeper Cab, Dual Bunk, A/C, Air Suspension Driver Seat |
| Clutch Type | 430mm Single Dry Plate, Diaphragm Spring, Hydraulic Assist |
| Brake System | Full Air Dual Circuit, Spring-Brake Parking, ABS, Engine Exhaust Brake |
| Overall Dimensions | 6800 * 2496 * 3850 mm |
Mechanical Condition Assessment
Our mechanical inspection of this HOWO tractor unit covered all major systems. The WD615.47 engine was compression-tested with all six cylinders within 5% variance from factory specification. The turbocharger was inspected for shaft play and found within service limits. Fuel injection pump timing is correctly set with clean injector spray pattern observed during bench test. The HW19710 transmission was road-tested through all gears with smooth engagement and no bearing noise. The clutch disc thickness was measured at 65% of new specification. The fifth-wheel coupling plate shows normal polished wear pattern with kingpin jaw locking mechanism operating correctly and securely. The rear suspension leaf spring packs are intact with no cracked leaves. All 10 tires have even wear patterns. The air dryer cartridge was replaced at the most recent service interval. Brake lining thickness measured at all wheel positions exceeds minimum service specification.
Export Transportation Methods
This tractor unit can be exported through Ro-Ro (Roll-on/Roll-off) carrier service with regular sailings from Chinese main ports (Shanghai, Tianjin, Qingdao, Lianyungang). For destinations not served by Ro-Ro lines, the tractor can be loaded into a 40-foot flat-rack container with the exhaust stack and mirrors temporarily removed and packed separately. Pre-shipment procedures include professional exterior steam cleaning, undercarriage pressure wash, removal of personal items from cabin, fuel tank drained to minimum level per dangerous goods regulations, and battery negative terminal disconnection. We provide a complete export document set: commercial invoice, detailed packing list, certificate of origin, and bill of lading. Our logistics team can coordinate with your nominated freight forwarder or recommend established shipping agents with competitive rates. Ocean transit estimates from China: East Africa 18-25 days, West Africa 28-35 days, Middle East 14-20 days, South Asia 10-15 days.
Customer Support After Purchase
Following delivery of this tractor unit, we extend 7 days of remote technical consultation covering engine break-in procedures (if rebuilt components are present), daily pre-operation inspection checkpoints, fifth-wheel coupling and uncoupling procedure demonstration, and interpretation of dashboard warning indicators. A maintenance schedule card aligned with Sinotruk's recommended service intervals is provided. We can assist with sourcing genuine or OEM-quality replacement parts including oil filters, fuel filters, air filters, brake chamber diaphragms, and clutch release bearings through our established parts supply network. For major repairs requiring specialized tools, we can recommend authorized service facilities in many international markets. Please note this unit is sold in its inspected used condition, and we strongly recommend buyers conduct their own arrival inspection or engage a local heavy vehicle workshop for commissioning verification.
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