Product Introduction

This rear suspension shock absorber is a hydraulic damping component with an integrated coil spring, designed for heavy-duty truck suspension systems. It features a cylindrical steel body with a dark gray anti-corrosion coating, an integrated helical coil spring, and both ends are fitted with metal bushings for pivot connection. The body is marked with specifications and a QR code for easy identification and traceability.

Performance

Manufactured with precision-machined components and high-quality hydraulic fluid, this shock absorber delivers consistent damping performance, vibration isolation, and impact absorption. It operates reliably in temperatures ranging from -40°C to 120°C, resisting degradation from road contaminants and harsh operating conditions. The integrated coil spring provides additional load support and progressive stiffness, effectively controlling suspension movement and improving ride stability.

Core Function

1. Serves as a critical damping and load-supporting component in the rear suspension system, absorbing and dissipating road impacts and vibrations to ensure a smooth, stable ride.

2. Controls excessive suspension movement, preventing wheel hop and maintaining tire contact with the road surface for improved handling and safety.

3. Reduces stress on chassis and suspension components, extending their service life by minimizing fatigue and wear.

4. Enhances overall vehicle stability and control, especially under heavy loads or during cornering, braking, and acceleration.

Rear Suspension Shock Absorber WG1642440084 – Sinotruk HOWO Heavy-Duty Truck Parts

When your heavy-duty truck hits rough terrain day after day, the rear suspension shock absorber is the unsung hero that keeps your cargo safe and your chassis intact. The Rear Suspension Shock Absorber WG1642440084 is a precision-engineered hydraulic damping component built specifically for Sinotruk HOWO heavy-duty truck suspension systems. Manufactured to OEM-equivalent standards, this shock absorber delivers consistent damping performance, extends vehicle service life, and reduces costly downtime on demanding haul routes. At Mettlead, we supply this part directly from our factory floor — meaning you get competitive pricing without sacrificing quality or traceability.

Key Features and Benefits of the WG1642440084 Shock Absorber

This rear suspension shock absorber isn’t just a replacement part — it’s an investment in ride stability, driver comfort, and long-term fleet savings. Here’s what sets it apart:

• Hydraulic Damping with Integrated Coil Spring: The built-in helical coil spring works in tandem with the hydraulic cylinder to absorb road shocks smoothly, protecting both the chassis frame and the cargo from excessive vibration.
• Heavy-Duty Cylindrical Steel Body: Constructed from high-strength steel, the body withstands the punishing loads and repetitive stress cycles common in long-haul and off-road trucking environments.
• Dark Gray Anti-Corrosion Coating: A factory-applied protective finish guards against rust, salt spray, and chemical exposure — extending service life even in harsh climates.
• Metal Bushings at Both Ends: Precision-machined pivot bushings ensure a secure, rattle-free connection to the suspension mounting points, reducing play and noise over time.
• QR Code Traceability: Each unit is laser-marked with specifications and a scannable QR code, so you can verify authenticity and batch information instantly.
• Direct OEM Replacement: Designed as a drop-in fit for Sinotruk HOWO rear suspension assemblies — no modifications, no guesswork.

In other words, this shock absorber is purpose-built to handle the weight, the road conditions, and the relentless duty cycles that define heavy truck operations.

Technical Specifications – WG1642440084 Rear Suspension Shock Absorber

Note: For detailed dimensional drawings or torque specifications, please contact us directly with your vehicle model and VIN.

Application Scenarios – Where This Shock Absorber Belongs

Understanding exactly when and where this part fits helps you make a confident purchasing decision. The WG1642440084 Rear Suspension Shock Absorber is designed for the following scenarios:

• Compatible Truck Models: Sinotruk HOWO series heavy-duty trucks, including tractor heads, dump trucks, and cargo trucks equipped with the standard rear suspension configuration.
• System Position: Rear axle suspension system — this component sits between the chassis frame and the rear axle assembly, managing vertical load transfer.
• Replacement Trigger: Worn-out or leaking shock absorbers that cause excessive body roll, uneven tire wear, poor ride quality, or visible oil seepage from the damper body.
• Maintenance Context: Routine suspension overhaul, post-accident repair, or preventive replacement at recommended service intervals to maintain optimal damping performance.

If you’re managing a fleet of Sinotruk trucks, keeping spare WG1642440084 units in your inventory means faster turnaround when a vehicle comes in for suspension service. Browse more compatible parts in our Sinotruk HOWO parts catalog or explore our full chassis and suspension parts category.

OEM / ODM Capability and Custom Packaging

Mettlead understands that different markets have different branding requirements. That’s why we offer flexible options tailored to wholesale buyers and distributors:

• White-Label Packaging: Receive parts in neutral packaging — ready for your own branding and distribution channels.
• Custom Packaging: We can print your logo, part numbers, and barcodes on boxes and labels, giving your customers a seamless brand experience.
• Strict Quality Control: Every WG1642440084 shock absorber passes multi-stage inspection — from raw material verification through final assembly testing — before it leaves our facility.
• Factory Visit Welcome: We encourage procurement managers to visit our production site in China for firsthand quality assurance and relationship building.

Whether you need 10 units or 10,000, our production capacity and inventory depth are built to match your demand cycles without delays.

Frequently Asked Questions – WG1642440084 Rear Suspension Shock Absorber

What are the signs that this rear shock absorber needs replacement?

The most common indicators include visible oil leakage from the damper body, excessive bouncing or body roll when the truck is loaded, uneven rear tire wear, and a noticeable decline in ride stability — especially at highway speeds or on uneven surfaces. If the integrated coil spring shows deformation or cracking, immediate replacement is also necessary.

Is the WG1642440084 shock absorber a direct fit for all Sinotruk HOWO models?

Yes, this part is designed as a direct OEM replacement for Sinotruk HOWO heavy-duty trucks that use the WG1642440084 specification in their rear suspension. However, since HOWO covers multiple generations and configurations, we recommend confirming your exact chassis model or VIN with our team to ensure a perfect match.

How does the integrated coil spring differ from a standalone shock absorber?

A standalone shock absorber only provides damping — it controls the speed of suspension movement. The WG1642440084 combines a hydraulic damper with a helical coil spring, meaning it handles both load support and damping in a single unit. This integrated design simplifies installation and ensures the spring rate and damping characteristics are perfectly matched from the factory.

What is the expected service life of this shock absorber under normal conditions?

Under standard operating conditions — regular highway and regional haul routes with proper load management — this shock absorber typically delivers reliable performance for 80,000 to 120,000 kilometers. However, severe off-road use, persistent overloading, or exposure to corrosive environments may shorten that interval. Regular visual inspections during routine maintenance help catch early wear.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order samples for fitment testing and quality evaluation before placing volume orders. Simply reach out to our sales team with your requirements, and we’ll arrange a sample shipment promptly.

Ready to Secure Your Supply? Get a Quote Today

You’ve done the research — now let’s get the parts moving. Whether you need a single sample for testing or a bulk order to restock your warehouse, Mettlead delivers factory-direct pricing, fast lead times, and the quality assurance your customers expect.

Here’s how to move forward:

1. Contact us with your required quantity and delivery destination.
2. Receive a competitive quotation within 24 hours.
3. Approve the order and choose your preferred secure payment method.
4. Track your shipment from our warehouse to your door.

Explore our complete range of Sinotruk truck parts to consolidate your order and save on shipping. The more you source from one reliable supplier, the simpler your procurement process becomes.

Mettlead — Your factory-direct partner for Chinese heavy truck parts, delivered worldwide.