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Front Three-Quarter
Cab, lights, bumper, steering axle and tandem rear-axle layout.
Overview & Specifications
Classic HOWO 6x4 tractor overview
Refurbished HOWO 371HP 6x4 Tractor Truck
The refurbished HOWO 371HP 6x4 tractor truck is based on the classic HOWO platform commonly paired with the WD615.47 engine, HW19710 manual gearbox and HW76 single-sleeper cab.
Current product coverage includes tractors produced from 2017 to 2022. The public VIN reference is partially masked, with only production-year identification retained; wheelbase, axle ratio, fifth-wheel specification, tire condition and restoration scope are confirmed against the selected tractor before contract.
371 HPWD615.47 reference engine
6x4Three-axle tractor layout
HW1971010 forward + 2 reverse
HW76Single sleeper with A/C
Configuration boundary: This page covers the classic HOWO 371HP / WD615.47 / HW76 tractor family. It does not treat later HOWO NX H77L/H78 cab configurations as the same model. Every quotation should identify the actual VIN or stock number.
Reference Specification
| System | Reference / field to confirm |
|---|---|
| Product type | Refurbished HOWO 371HP 6x4 Tractor Truck |
| Representative chassis model | ZZ4257S3241W family; confirm the complete model and VIN of the selected tractor |
| Drive / axle layout | 6x4; 3 axles; one steering axle and tandem rear drive axles |
| Driving position | LHD is a common configuration; confirm actual stock and destination requirement |
| Production year / VIN record | 2017–2022 product range; the public VIN reference is partially masked while the full VIN is confirmed privately against the selected tractor and its documents |
| Cab | HOWO HW76 single-sleeper cab with air conditioner, common configuration |
| Engine | SINOTRUK WD615.47 diesel; inline 6-cylinder; turbocharged, intercooled and water-cooled |
| Rated power | 371 HP / 273 kW at 2,200 rpm, published reference; verify the engine plate |
| Displacement / emission | 9.726 L / Euro II reference; import and registration eligibility must be checked for the destination |
| Transmission | HW19710 manual gearbox; 10 forward + 2 reverse |
| Clutch | 430 mm single-plate dry clutch; hydraulic operation with air assistance, reference |
| Steering | ZF8098 hydraulic power-assisted steering, common published configuration |
| Front axle | HF7 or HF9 variants appear in published configurations; 7,000 or 9,000 kg reference rating |
| Rear drive axles | ST16 or HC16 tandem drives; 16,000 kg x 2 reference; confirm model, ratio and lock operation |
| Braking | Dual-circuit compressed-air service brake; spring-energy parking brake; engine exhaust brake; ABS varies by unit |
| Suspension | Leaf-spring suspension; inspect spring packs, U-bolts, bushings and alignment |
| Tires | 12.00R20, 12R22.5 or 315/80R22.5 may appear; 10 road tires + 1 spare reference |
| Fuel tank | 400 L is a common reference; confirm actual capacity, material and condition |
| Wheelbase | 3,225 + 1,350 mm or 3,200 + 1,400 mm published variants; measure the selected tractor |
| Overall dimensions | Approx. 6,800 x 2,496–2,550 x 2,958–3,718 mm across published cab/configuration variants; verify physically |
| Curb / gross vehicle weight | Approx. 8,800–9,210 kg curb weight and 25,000 kg GVW in common published configurations; plate data takes precedence |
| Fifth wheel | 2-inch (50 mm) or 3.5-inch (90 mm) coupling may be fitted; confirm kingpin compatibility, mounting height, wear and lock test |
| Trailer / combination mass | Must be selected from the tractor plate, fifth-wheel and axle ratings, trailer data, route and destination regulations—not advertised tonnage alone |
| Maximum speed | Common published reference: approximately 90–102 km/h depending on axle ratio and configuration |
| Restoration scope | Provide the inspected, repaired and replaced item list for the selected VIN / stock number |
Reference values were cross-checked across classic HOWO 371HP 6x4 specifications for the ZZ4257S3241W / WD615.47 / HW19710 family. The physical tractor, identity documents and signed quotation take precedence.
Tractor Gallery
Use current exterior views of the same stock unit so buyers can verify the complete three-axle layout and coupling area.
Full Side Profile
Wheelbase, chassis, fuel tank, cab profile and fifth-wheel position.
Fifth Wheel & Rear Axles
Coupling plate, lock area, chassis rails, tandem drives and trailer lines.
Core Systems & Coupling
Vehicle-specific condition review
Six Systems to Inspect Before Matching a Trailer
A tractor unit must be checked as a complete towing system. Mechanical condition, fifth-wheel geometry, axle configuration and trailer interfaces are verified together—not as isolated brochure items.
01 / ENGINE
WD615.47 Power Unit
Confirm identity and running condition before cosmetic preparation.
- Cold start, idle and exhaust
- Oil, coolant and fuel leakage
- Engine number and plate
02 / TRANSMISSION
HW19710 & Driveline
Check clutch response, all gear ranges, propeller shafts and visible leakage.
- 10 forward + 2 reverse
- Clutch and selector operation
- Shafts, joints and mounts
03 / CAB
HW76 Cab & Controls
Inspect the dashboard and test the driver controls, sleeper and electrical functions.
- Dashboard warning lamps
- Seat, sleeper and trim
- Lights, wipers and A/C
04 / STEERING AXLE
Front Axle & Steering
Inspect the beam, kingpins, tie rods, hubs, brakes and tire wear pattern.
- Steering play and response
- Hub and brake condition
- Alignment and tire wear
05 / TANDEM DRIVES
Rear Axles & Suspension
Check axle model, ratio, differential locks, hubs, spring packs and bushings.
- Oil leakage and hub condition
- Inter-wheel / inter-axle locks
- Springs, U-bolts and bushings
06 / COUPLING
Fifth Wheel & Trailer Lines
Inspect wear, jaws, lock operation, mounting, height and all air/electrical connections.
- 50 mm / 90 mm compatibility
- Lock pull-test and mounting
- Air couplings and socket
Trailer compatibility check
Confirm the Interface Before the Order
Send the intended semi-trailer data with your inquiry. SIMAMIX can then compare the tractor configuration with the coupling and route requirement.
Kingpin2-inch / 50 mm or 3.5-inch / 90 mm
Coupling HeightLoaded trailer height and tractor fifth-wheel height
Trailer & RouteType, axle layout, surface, gradient and distance
Legal MassPlate data and destination limits for the combination
Image status: Current layout visuals are references. Publish vehicle condition, buyer inspection and component claims only with traceable material for the selected VIN / stock number.
Restoration & Verification
Restoration and identity control
01 / INTAKE
02 / MECHANICAL
03 / CHASSIS & CAB
04 / FINAL TEST
Show the Work, Not Only the Finished Paint
A credible refurbished-tractor record connects the intake condition, repair scope, component checks and final test to one VIN or stock number. Paintwork is only one part of the process.
Identity & Condition
Record the partially masked VIN/chassis reference, engine number, production year and pre-restoration condition. Photograph the cab, frame rails, fifth wheel, axles, tires and connectors.
Inspect & Repair
Check engine, clutch, gearbox, driveline, steering, brakes, tandem drive axles and suspension. Log replaced parts and retained components.
Restore & Refinish
Document frame and coupling treatment, rust repair, cab refurbishment, air/electrical work, paint preparation and final finishing.
Verify Before Dispatch
Perform cold start, idle, dashboard, gear selection, brake, steering, lights, fifth-wheel lock and yard/road checks; close out the vehicle job record.
Vehicle-Specific Evidence
The same stock number should appear across the intake, workshop and final inspection record where practical.
BEFORE
Intake Condition
Complete-vehicle condition, identity, visible damage, tire wear and coupling area before work.
DURING
Mechanical Inspection
Engine-bay access, leakage checks, service work and component-specific repair evidence.
FINAL CHECK
Coupling & Function Review
Finished condition, fifth-wheel lock operation, trailer lines and final function checks.
Restoration Record Fields
Keep these fields linked to the quotation, invoice and dispatch material for the exact tractor.
Vehicle identityVIN / stock no. / chassis model / engine no.
Source condition2017–2022 year record / intake photos / visible defects
Mechanical workInspected / repaired / replaced / retained items
Coupling checkSize / height / plate wear / jaws / lock test
Function testsCold start / gears / brakes / steering / electrics
Final evidenceDated photos / videos / inspector / dispatch record
Publication rule: Do not label reference, generated or unrelated workshop visuals as evidence for an available tractor. Replace them with traceable material for the selected vehicle before publication.
If you are interested in our company or products, welcome to visit our company you can also get contact with us through online consulting,
E-mail: info@simamix.com and Telephones:+86 18538068019.
Factory, Shipping & FAQ
Factory, inspection and delivery
BEFORE ORDER
BEFORE PAYMENT
BEFORE SHIPMENT
AFTER ARRIVAL
Complete the Evidence Chain
Workshop preparation, buyer review and dispatch material should all identify the same tractor and support the final quotation.
01 / WORKSHOP
Refurbishment & Testing
Mechanical access, service work, repaired/replaced parts and final function checks are recorded.
02 / INSPECTION
Vehicle-Specific Review
VIN, engine, cab, chassis, axle, tire, fifth-wheel and connector checks can be reviewed before balance payment.
03 / SHIPMENT
Loading & Dispatch
Pre-loading condition, loading method and dispatch photos are coordinated with the export document pack.
Support Scope to Confirm in the Quotation
Vehicle Matching
Destination, trailer type, kingpin, coupling height, route, quantity and current stock.
Inspection Evidence
VIN photos, cold-start video, component checks, restoration record and live/third-party inspection.
Dispatch Check
Final specification, accessories, spare parts, loading method and export document scope.
Service & Parts
Written warranty terms, exclusions, parts package, technical support channel and response process.
Refurbished HOWO 371HP 6x4 Tractor Truck FAQ
Are all refurbished HOWO 371HP 6x4 tractor trucks configured exactly the same?
No. Production year, axle model and ratio, wheelbase, tires, fuel tank, fifth wheel, brake equipment and restoration scope can differ. Confirm the actual tractor through its VIN record, current photos, measurements and signed specification.
How do I confirm compatibility with my semi-trailer?
Provide trailer type, kingpin size, loaded coupling height, axle layout, intended operating mass, road conditions and destination rules. The tractor plate, fifth-wheel size/height and axle data must be checked before contract.
Can I inspect the exact tractor before balance payment?
Request current photos, walk-around and cold-start videos, a live video inspection, a factory visit or an independent third-party inspection.
What should be included in the restoration record?
It should identify the tractor, show intake/workshop/final condition, list inspected and replaced components, and include engine, drivetrain, brake, steering, coupling and function-test evidence.
What affects the final price?
Price depends on production year, mechanical condition, restoration scope, cab, axle and tire configuration, fifth wheel, fuel tank, optional parts, quantity and destination shipping plan.
How long does preparation and delivery take?
Timing depends on current stock, agreed restoration work, inspection, export documents, destination port and vessel schedule. The confirmed schedule should be written into the quotation.
Which shipping method is available?
Ro-Ro or bulk shipment is commonly considered for tractor units; suitable container or flat-rack options depend on dimensions, port and carrier availability.
Is warranty or spare-parts support included?
Any warranty period, exclusions, replacement-parts package and after-sales scope must be stated in the quotation or contract for the selected tractor.
Request Current 6x4 Stock, VIN Details & Inspection Video
Tell us your destination, trailer and route requirements. We will match them to an available tractor and vehicle-specific evidence.
Request Current Stock & VIN VideoPlease include:
Destination country / port · trailer type · kingpin size · coupling height · intended operating mass · route conditions · quantity · preferred inspection method.
Destination country / port · trailer type · kingpin size · coupling height · intended operating mass · route conditions · quantity · preferred inspection method.
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