Used 6×4 dump trucks for sale Howo 420HP

Overview of the HOWO 6×4 420 hp Dump Truck

Used HOWO 6×4 dump truck (420 hp) combines strong power output with excellent durability. Even after years of use, the professionally used 6×4 dump trucks for sale remains reliable due to its robust Sinotruk HOWO chassis structure and powerful MC11 or WD615.96 engine configuration.

This used 6×4 dump trucks for sale, equipped with a 420 hp engine, is one of the most popular heavy-duty dump trucks on the global market. Known for its powerful performance, robust chassis, and economical operating costs, it is widely used in mining operations, infrastructure construction, material handling, and aggregate transportation.

This 420 hp version is more powerful than the standard used howo371 hp dump trucks model, making it ideal for demanding working environments such as steep mining roads and long hours of intensive loading and unloading operations.

Highlights of the used 6×4 dump trucks for sale version:

Higher torque output for climbing and heavy-duty conditions

Stronger acceleration and power response

Superior performance in mining and complex terrain operations

Practical working capacity from 25 to 40 tons

The 6×4 axle design achieves a good balance in load capacity, maneuverability, and cost, making it a preferred choice for construction contractors and fleet owners.

Used 6×4 dump trucks for sale (420 hp) Technical Specifications

Item	Specification
Model	Used HOWO Dump Truck 6×4 420HP
Engine	420HP MC11 / WD615.96
Emission Standard	Euro 2 / Euro 3
Transmission	HW19710 / HW19712 (10/12 speed)
Drive Type	6×4
Loading Capacity	25–40 Tons
Cargo Box Size	5600–7600 mm (customizable)
Cargo Box Type	U-shape / Square / Mining reinforced
Hydraulic System	HYVA cylinder (front lift)
Fuel Tank	300–400L
Tire	12.00R20 / 315/80R22.5
Cabin	HW76 with A/C
Year Range	2014–2021
Condition	Used or fully refurbished

These specifications can be customized to meet customer needs, such as climate conditions, road conditions, load materials, and local regulations.

Key Features of the used howo 420hp dump trucks

1 High-Power 420 hp Engine for Heavy-Duty Operations

This 420 hp engine produces significantly more torque than the 371 hp version, making it ideal for:

Mountainous construction areas

Quarrying operations

Long-distance heavy material transport

Wet or muddy road conditions

Engine Advantages:

Greater pulling force

Stronger climbing ability

Faster unloading cycles due to increased torque

Optimized fuel consumption for heavy-duty operations

2 Enhanced Heavy-Duty Cargo Box

Customers can choose from a variety of configurations:

U-Shaped Box

Best suited for sand, soil, and aggregates

Faster unloading

Reduced residue

Square Box

Larger volume

Suitable for lighter materials

Mine Box

12 to 20 mm thick bottom steel plate

Highly impact-resistant, suitable for large rocks

Designed for extreme mining environments

3 Reliable HYVA Hydraulic Lifting System

Equipped with HYVA Column:

Powerful lifting capacity

Long service life

Low failure rate

Fast unloading speed

(Locally available gas cylinders in China are available for cost optimization.)

4 Robust Chassis and Suspension System

The used 6×4 dump trucks for sale frame features:

High-strength steel frame

Reinforced crossbeams

Heavy-duty leaf spring suspension

Strong rear axle with high load-bearing capacity

This ensures greater durability and stability during heavy-duty and rough-road operations.

Refurbishment and Inspection Process

Every used 6×4 dump trucks for sale undergoes a rigorous 6-step repair process:

Step 1: Engine Inspection

Turbocharger Inspection

Fuel Pump Adjustment

Injector Calibration

Oil and Filter Replacement

Step 2: Drivetrain and Axles

Transmission Testing

Difference Repair

Drivetrain Balance Adjustment

Step 3: Hydraulic System Inspection

Cylinder Leak Test

Patent Examination

Hydraulic Pump Calibration

Step 4: Chassis and Suspension System

Frame Alignment

Resistance Welding

Spring Blade Replacement

Step 5: Electrical System

Dashboard

Wiring Harness

Lighting and Safety Equipment

Step 6: Road Test

Brakes

Handling; Control; Guiding

Load Simulation Test

Why Choose used howo heavy-duty dump trucksFrom Us?

We offer: Over 150 used 6×4 dump trucks for sale in ample stock

Professional refurbishment factory

Custom colors and specifications

Video inspection before shipment

Global logistics support

One-year after-sales service option

Ensuring your business receives reliable, ready-to-use trucks.