
Product Use
1. Definition of Tractor
A tractor is a versatile light truck designed for towing other vehicles or heavy objects on the road. Equipped with multiple pairs of wheels and axles, it is essential for pulling semi-trailers, luxury yachts, construction equipment, and more. As a cornerstone of heavy transportation, it plays an indispensable role across various industries.
2. The Structure of the Tractor
A tractor comprises several key components: engine, transmission, tires, and frame. It may also include additional devices such as tow hooks, locking systems, and remote controls, enhancing its operational efficiency and control.
3. Tractor Application Fields
1. Transportation: In the long-distance freight industry, the tractor is indispensable for towing semi-trailers and large trucks, ensuring the safe and efficient delivery of goods to their destinations.
2. Construction Field: Tractors tow various construction equipment, including excavators, bulldozers, and cranes, facilitating the transportation of heavy machinery to job sites.
Basic Info.
Horsepower | 371-400hp | Engine Capacity | >8L | |
Tire Design | Radial | Condition | New | |
Usage | Towing Semi Trailer | Fuel Tank | 400L, 600L, 1000L | |
Driver Seat | Air Suspension Seat | Transport Package | Nude Packing | |
Trademark | SINOTRUK HOWO | Production Capacity | 1000 |








Main Specifications:
Driver's Cab(One sleeper with A/C)
Model | HW76 Cab, with one sleeper beds, two seats, with A/C |
Type | Forward control cab, hydraulically tiltable by 60o |
Construction | Current standard all steel construction |
Instrument panel | Clearly visible,indicators of compressed air pressure, coolant temperature, engine oil pressure and battery charging |
Seats | 4-point support fully floating suspension + shock absorbers driver adjustable & passenger fixed |
Seat belts | For driver & passenger |
Glass | Tempered safety glass |
Sun visors | Dual, adjustable |
Mirrors | Large, truck type convex |
Wind screen wiper | 3 arm wind screen wiper system with 3 speeds |
Entertainment system | FM/AM/SW, 4 band radio with cassette player, two speaker and antenna |
Steering wheel | Adjustable steering wheel |
Horn | Air horn |
Panel | LCD Panel with LED light |
Engine
Engine brand | SINOTRUK |
Engine model | WD615.47, 380hp |
Emission Standard | EURO II |
Engine type | Diesel 4-stroke direct injection engine, 6-cylinder in-line with water cooling, turbo-charging & Inter-cooling |
Displacement | 9.726 liters |
Max. Output | 371hp@2200rpm |
Max. torque | 1250Nm @1100-1600 rpm |
Bore/Stroke | 126/130mm |
Compression ratio | 17:1 |
Specific fuel consumption | ≤193g/kW.h |
Cooling System
Medium | Water |
Radiator | heavy duty type |
Cooling fan | Visco static fan tropical type |
Thermostat | Opening at 70-80ºC |
Warning device | Audible & visual |
Clutch
Type | Φ430 Diaphragm type, Single dry frictional disc, Hydraulic boosting hydraulically operating with air assistance |
Transmission
Type | Heavy duty, manual fuller type | ||||||||||||||||
Model | HW19710 | ||||||||||||||||
No of speeds | 10 forward + 2 reverse | ||||||||||||||||
Model | Torque(Nm) | Gear Ratios | Oiling (L) | ||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | R1 | R2 | ||||||
HW19710 | 1900 | 14.28 | 10.62 | 7.87 | 5.88 | 4.38 | 3.27 | 2.43 | 1.80 | 1.34 | 1.00 | 13.91 | 3.18 | 12 | |||
Front Axle
Type | HF7 tons steering with double T-cross section beam |
Capacity | 7000kg |
Rear Axle
Type | HC16(16 ton, punching-welding axle housing, double reduction driving axle, inter-wheel differential and differential lock) |
Capacity | 16T |
Chassis
Frame | Heavy duty, reinforced sub frame, 300mmx80mmx8mm (inner: 280mmx70mmx7mm) |
Front suspension | semi-elliptic leaf springs with hydraulic telescopic double-action shock absorbers and stabilizer, 1500mm |
Rear suspension | semi-elliptic springs ,and bogie springs, and stabilizer , 1739mm |
Air Intake System
Air cleaner type | Heavy duty type |
Pre filter | Cyclone |
Exhaust System
Capable of maintaining the sound level as low as possible. |
Steering
Location | Left hand |
Model | ZF 8098 (Made in Germany) hydraulic steering with power assistance |
Variable ratios | 22.2-26.2, 17.0-20.0 |
Max. pressure | 170+10 bar |
Max. output torque | 7618 Nm |
Weight | 42 kg |
Bumper
Installed heavy duty front and rear steel bumpers |
Brake System
Service brake | Dual circuit compressed air brake. |
Parking brake | Spring energy, compressed air operating on rear wheels |
Assistant brake | Engine exhaust valve brake |
Wheels & Tyres
Wheels | Single front and dual rear |
Tyres | Double Coin brand,12.00R20 |
Quantity | 13 |
Air Supply System
Warning device | Audible & visual |
Air line | Heavy duty steel pipes |
Electrical System
Operating Voltage | 24V, Negative grounded; Starter 24V, 7.5KW |
Battery type | 2x12V, 165Ah/180Ah |
Alternator | 28V, 1500W |
Cigar | Lighter, horn, head lamps, fog lights, brake lights, indicators and reverse lamp |
Dimensions
Wheel base | 4600mm+1350 |
Overall length | 6875mm |
Overall width | 2496mm |
Overall height | 3730mm |



Our Factory

Shipment
We typically ship trucks via RO-RO vessel or bulk vessel, and also offer shipping through special containers to meet various logistical needs.

Original Spare Parts
We provide genuine spare parts and a comprehensive after-sales service system. Our After-Market Division ensures exceptional service and rapid parts delivery through an efficient supply chain.

Our Product

Thank You for Choosing Us
Q: How about the delivery time?
A: Most of our trucks and machines are in stock and can be delivered within 7 days. For specially ordered items, we generally require around 30 days for production.
Q: How many units of truck do you produce per year?
A: We produce nearly 30,000 units annually, with approximately 5,000 units updated or produced each month.
Q: How do you control the quality of the product?
A: Our factory features a standard production workshop with well-trained workers. Each product undergoes a thorough inspection process. We also recondition our trucks and machines on a specialized production line to ensure top-notch quality.
Q: Do you accept custom orders? What is your MOQ?
A: Yes, we do accept custom orders. Our minimum order quantity (MOQ) is 1 unit.