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Sinotruck Howo 6X6 10 Wheeler Tractor Truck

This heavy‑duty 6×6 tractor truck is designed for towing semi‑trailers in both on‑road and off‑road applications. Powered by the reliable WD615 series engine and featuring full all‑wheel drive, it provides strong traction, high payload capacity, and durable performance for highway logistics, mining, logging, and construction projects. The HW76 cab with a sleeper offers a comfortable working environment for long‑distance haulage.

Product Description

Core Specifications
Item Specification
Chassis Model ZZ4257N3557A
Drive Configuration 6×6 all‑wheel drive
Engine WD615.69, 336 HP (247 kW), Euro II
Displacement 9.726 L
Max Torque 1,350 Nm @ 1,100–1,400 rpm
Transmission HW19710, 10 forward + 2 reverse gears
Front Axle HF7 (Steyr technology)
Rear Axle HC16 tandem, double‑reduction hub
Clutch D430 diaphragm type
Steering ZF8098 hydraulic power steering
Cab HW76, 2 seats + 1 sleeper, with A/C
Tires 12.00R20 (10 + 1 spare)
Suspension Front 9‑leaf, rear 12‑leaf heavy‑duty springs
Fuel Tank 400 L
Wheelbase 3,225 + 1,350 mm
Overall Dimensions (L×W×H) Approx. 6,800 × 2,496 × 3,718 mm
Kerb Weight Approx. 8,800 kg
Max Speed 90 km/h
Brake System Dual‑circuit air brake + spring parking brake + exhaust brake
Key Advantages

6×6 All‑Wheel Drive

Ensures excellent mobility on muddy, sandy, or uneven terrain.

High Towing Power

Delivers up to 371 HP with peak torque of 1,350–1,500 Nm, capable of pulling heavy trailers fully loaded.

Robust Drivetrain

HW19710 10‑speed gearbox, STR front axle, and HC16 tandem rear axles with hub reduction for extra torque.

Reinforced Chassis

High‑strength steel frame and heavy‑duty suspension withstand harsh roads and extend service life.

Driver‑Friendly Cab

HW76 cab with air conditioning, adjustable suspension seat, and four‑point floating mounts to reduce fatigue.

Frequently Asked Questions

What are the capabilities of the 6×6 drive system?

The 6×6 all-wheel drive system distributes power to all six wheels, ensuring maximum traction and superior off-road mobility across muddy, sandy, or highly uneven rough terrain.

What type of transmission is fitted in the ZZ4257N3557A chassis?

It features the HW19710 transmission, which delivers 10 forward gears and 2 reverse gears, allowing optimal power distribution and smoother gear shifts under heavy loads.

What is the engine power and displacement of this model?

The truck is powered by a WD615.69 Euro II engine with a displacement of 9.726 liters, generating 336 horsepower (247 kW) and a peak torque of 1,350 Nm.

What are the dimensions and fuel capacity of the truck?

The overall dimensions are approximately 6,800 × 2,496 × 3,718 mm, with a wheelbase of 3,225 + 1,350 mm. It is equipped with a large-capacity 400-liter fuel tank built for long-haul operations.

Is the driver cabin comfortable for long hours of operation?

Yes, the HW76 cabin is equipped with 2 seats, 1 sleeper bunk, air conditioning, and a four-point floating suspension system designed to minimize shock and reduce driver fatigue.

What braking safety systems are integrated?

The truck utilizes a dual-circuit compressed air brake system combined with a spring parking brake and an exhaust brake to ensure safe and reliable stopping power even under heavy loads.

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