Product Introduction

This heavy-duty steering bushing is a critical component of the truck’s steering linkage, designed to absorb vibration, reduce friction, and maintain precise alignment between the steering arm and the chassis. Its robust construction ensures reliable performance under heavy loads and rough road conditions.

Structure & Material

• Material: High-strength steel inner sleeve, bonded to a durable rubber outer layer. The rubber is a synthetic elastomer (typically natural rubber or SBR) with excellent wear resistance and vibration damping properties.

• Design: A cylindrical bushing with a steel core and rubber outer layer. The steel core provides structural rigidity, while the rubber layer absorbs shock and reduces friction during steering movement.

Performance

• Vibration Damping: The rubber layer effectively absorbs road vibrations and shocks, reducing driver fatigue and protecting steering components from damage.

• Low Friction: The precision-machined steel core ensures smooth articulation of the steering arm, minimizing friction and wear.

Core Function

1. Friction Reduction: Provides a low-friction interface for smooth steering arm articulation.

2. Vibration Absorption: Absorbs road shocks and vibrations, protecting steering components and improving ride comfort.

3. Alignment Maintenance: Maintains precise steering geometry for accurate control.

Steering Bush, Top WG4071415021 – Sinotruk Sitrak OEM Replacement

When your Sitrak’s steering column starts to feel loose or noisy, chances are the upper steering bush has worn past its limit. The Steering Bush, Top WG4071415021 is engineered to restore precise steering feedback, reduce friction, and absorb vibration — exactly the way the original part was designed to perform. Sourced directly from Mettlead’s factory supply chain in China, this component delivers OEM-grade fit at a price that keeps your fleet maintenance budget intact.

Whether you manage a long-haul logistics fleet or run a regional parts distribution business, this top steering bush helps you minimize downtime and maintain driver confidence behind the wheel. It’s the kind of part that works quietly in the background — until it fails. So don’t wait for the symptoms to escalate.

Key Features and Benefits of the WG4071415021 Steering Bush

This upper steering bush isn’t just a rubber sleeve — it’s a precision-molded friction reducer that sits at the heart of your steering column assembly. Here’s what it brings to the table:

• Friction Reduction: The bush creates a low-resistance interface between the steering shaft and housing, ensuring smooth rotational movement even under heavy load.
• Vibration Dampening: Road-induced vibrations are absorbed before they reach the steering wheel, protecting both driver comfort and column longevity.
• Wear Resistance: Manufactured from high-density composite material that resists deformation under sustained thermal and mechanical stress.
• OEM-Exact Dimensions: Matches the original WG4071415021 specification for drop-in installation — no modifications, no guesswork.
• Extended Service Life: Designed to exceed 200,000 km under normal operating conditions, reducing replacement frequency and total cost of ownership.

Application Scenario

The Steering Bush, Top WG4071415021 is specifically designed for Sinotruk Sitrak heavy-duty trucks. Installed at the upper position of the steering column, it serves as a critical anti-friction buffer that safeguards steering flexibility and responsiveness. In practical terms, this means tighter cornering control on urban delivery routes and more predictable handling on highway corridors — exactly what fleet operators demand from their front axle steering components.

If you’re sourcing parts for the broader Sitrak platform, explore our full Sitrak Heavy-Duty Parts catalog or browse the dedicated Front Axle Components category for related steering and suspension items.

Technical Specifications

For a comprehensive overview of all available Sinotruk Sitrak replacement parts organized by system, visit our Sinotruk Sitrak Truck Parts Full Category Guide.

OEM/ODM Capability

Mettlead doesn’t just sell parts — we adapt to how your business operates. Our manufacturing and supply chain infrastructure supports flexible cooperation models:

• White-Label Packaging: Receive the WG4071415021 steering bush in neutral packaging, ready for your own branding and distribution channels.
• Custom Packaging: Need your company logo, part number cross-reference, or barcode on the box? We handle that in-house.
• Strict Quality Control: Every batch undergoes dimensional inspection, material hardness testing, and fitment verification before shipment.
• Factory Visit Welcome: Procurement managers are invited to inspect our facilities, audit quality processes, and build long-term supply confidence on-site.

In short, whether you need 50 pieces for a regional workshop chain or 5,000 units for a national distributor network, the production line scales to your demand.

Frequently Asked Questions

What are the signs that the upper steering bush needs replacement?

The most common indicators include increased play or looseness in the steering wheel, a knocking or clunking noise when turning at low speed, and uneven steering effort. These symptoms suggest the bush material has worn thin and is no longer providing adequate support between the shaft and housing.

Is the WG4071415021 steering bush compatible with all Sitrak models?

This part is designed for Sinotruk Sitrak trucks that use the WG4071415021 specification in their steering column assembly. To confirm fitment for your specific model year or variant, cross-reference the OEM number with your vehicle’s parts manual or reach out to our team for verification.

How does material quality affect steering bush lifespan?

Lower-grade materials tend to harden and crack under thermal cycling, especially in extreme climates. The composite polymer used in this bush maintains its elasticity across a wide temperature range, which directly translates to longer service intervals and more consistent steering feel over time.

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

Absolutely. Mettlead supports sample orders so you can verify fitment, material quality, and packaging before scaling up. This is especially useful for procurement managers evaluating new supply sources.

What’s the typical lead time for this part?

Stock items usually ship within 3–5 business days. For larger custom-packaged orders, lead time ranges from 7–15 days depending on quantity and packaging requirements. We prioritize fast, reliable delivery to keep your inventory moving.

Ready to Secure Your Supply?

Getting the right steering bush at the right price shouldn’t require weeks of back-and-forth. Tell us your quantity, preferred packaging, and delivery destination — and we’ll respond with a detailed quotation within 24 hours.

Contact Us Now to request pricing for the WG4071415021 Steering Bush, Top, or to discuss ongoing supply arrangements for your Sitrak fleet parts program.