Product Introduction

• Structure: A forged steel housing with a precision-machined ball stud, high-performance rubber dust boot, and integrated grease fitting. The housing features a full-threaded shank for secure chassis attachment, and the dust boot has a dual-layer seal with red protective rings to prevent contamination.

• Performance: The forged steel construction provides exceptional strength to withstand the high torsion and impact forces of heavy-duty operation. The self-lubricating ball joint ensures smooth, friction-free movement, while the sealed dust boot prevents dirt, water, and debris from entering, extending service life.

Core Function

1. Steering Force Transmission: Transmits the steering gearbox’s movement to the right-side steering knuckle, enabling precise right-wheel turning.

2. Angular Movement Compensation: The ball joint design accommodates the up-and-down and side-to-side movement of the wheel during steering and suspension travel, maintaining constant steering geometry.

3. Durable Protection: The dual-seal dust boot and grease fitting ensure long-term lubrication and protection against harsh operating conditions, reducing wear and preventing premature failure.

Ball Joint R WG9925430200 – Sinotruk Sitrak Right Steering Ball Joint

When your Sinotruk Sitrak heavy-duty truck demands precise steering response and reliable suspension performance, the right ball joint makes all the difference. The Ball Joint R WG9925430200 is engineered specifically for Sitrak series trucks, delivering consistent articulation, minimal play, and extended service life — even under the harshest operating conditions. As a factory-direct supplier, Mettlead brings you this genuine-spec steering component at competitive pricing, backed by strict quality control and fast global delivery.

Key Features and Benefits of Ball Joint R WG9925430200

This right-side steering ball joint is far more than a simple pivot point. It serves as a critical link between the steering knuckle and the tie rod, translating driver input into accurate wheel movement. Here is what sets this part apart:

• OEM-Grade Fit: Manufactured to match the original WG9925430200 specifications, ensuring seamless installation without modification.
• High-Strength Alloy Steel Construction: The ball stud and housing are forged from premium alloy steel, heat-treated for superior fatigue resistance and impact toughness.
• Dust Boot Protection: A durable rubber dust boot seals out contaminants, keeping internal grease clean and extending operational lifespan significantly.
• Low Friction, Smooth Articulation: Precision-ground bearing surfaces reduce steering effort and eliminate excessive play, contributing to improved driver comfort and safer handling.
• Corrosion Resistance: Surface treatment protects against rust and oxidation, which is particularly important for trucks operating in humid, salty, or dusty environments.
• Extended Service Intervals: The robust design minimizes wear progression, meaning fewer replacements and lower total cost of ownership over the truck’s lifetime.

In other words, choosing this ball joint means your fleet stays on the road longer, your drivers feel confident behind the wheel, and your maintenance budget stays under control.

Technical Specifications

Application and Compatible Vehicles

The Ball Joint R WG9925430200 is designed to fit the right steering knuckle assembly of Sinotruk Sitrak heavy-duty trucks. It functions as an essential steering and suspension component, connecting the tie rod end to the steering knuckle while allowing multi-directional pivot movement.

This ball joint is commonly found in the following application scenarios:

• Sinotruk Sitrak C7H series — long-haul tractor units and cargo trucks
• Sinotruk Sitrak C5H series — medium-to-heavy-duty distribution vehicles
• Sitrak-based special vehicles including mixers, dump trucks, and tanker chassis

Whether your trucks handle intercity freight, construction site transport, or port logistics, this ball joint maintains precise steering geometry under high axle loads and repetitive turning cycles. For a complete overview of all available Sitrak components, visit our Sitrak Heavy-Duty Parts catalog or browse the Sinotruk Sitrak Truck Parts Full Category Guide.

OEM and ODM Capabilities

Mettlead understands that different markets have different needs. That is why we offer flexible customization options alongside our standard product line:

• White-Label Packaging: We supply ball joints in neutral packaging, ready for your own brand labeling — ideal for distributors and resellers building a private parts portfolio.
• Custom Packaging: Need branded boxes, specific barcodes, or multilingual labels? Our packaging team accommodates custom print requirements with low minimum order quantities.
• Quality Certification: Every batch undergoes dimensional inspection, hardness testing, and torque validation before shipment. We provide inspection reports upon request.
• Bulk and Mixed Orders: Combine this ball joint with other steering and suspension parts — tie rod ends, king pins, drag links — in a single consolidated shipment to reduce logistics costs.

Moreover, purchasing managers are welcome to visit our facility in China for an on-site quality audit. Seeing our production lines and QC processes firsthand gives you full confidence in the supply chain.

Frequently Asked Questions

What are the signs that a ball joint WG9925430200 needs replacement?

Common symptoms include excessive steering wheel play, clunking or knocking noises when turning or going over bumps, uneven tire wear on the right front axle, and visible damage or tearing of the dust boot. If you notice grease leaking from the boot seal, the internal bearing surface is likely contaminated and replacement should be scheduled promptly.

Is this ball joint identical in quality to the original Sinotruk part?

Yes. The Ball Joint R WG9925430200 supplied by Mettlead is manufactured to OEM dimensional and material specifications. We use the same forged alloy steel grade and heat-treatment process, and every unit passes strict quality inspection including torque resistance and radial play measurement.

How should this ball joint be installed correctly?

First, safely lift the vehicle and support the axle. Remove the cotter pin and castle nut from the old ball joint stud, then separate the taper using a ball joint separator tool — avoid hammering directly on the stud. Install the new WG9925430200 ball joint, torque the castle nut to the manufacturer’s specification, insert a new cotter pin, and apply grease through the fitting if applicable. Finally, check steering alignment after installation.

Can I order just one piece as a sample before placing a bulk order?

Absolutely. Mettlead supports sample orders so you can verify fitment, finish quality, and packaging before committing to larger volumes. Sample lead times are typically short, and the cost can be credited toward your subsequent bulk purchase.

What is the expected service life of this ball joint?

Under normal operating conditions and with proper lubrication maintenance, this ball joint typically lasts between 80,000 and 150,000 kilometers. However, service life depends on road conditions, vehicle load, and maintenance practices. Trucks operating primarily on well-maintained highways will generally see longer intervals between replacements compared to those working on rough construction sites.

Does the dust boot come pre-installed?

Yes, the ball joint ships with the rubber dust boot already fitted and pre-greased. This ensures the internal bearing surfaces are protected from the moment of installation, eliminating the risk of contamination during handling and storage.

Ready to Secure Your Supply of Ball Joint R WG9925430200?

Stop overpaying through middlemen or waiting weeks for uncertain deliveries. Mettlead connects you directly to the factory floor — meaning better prices, faster lead times, and a dedicated account manager who understands heavy truck parts inside and out.

Whether you need a trial sample, a container-load shipment, or a custom packaging solution, we are ready to build a supply partnership that works for your business.

Contact us today to request a quotation, confirm stock availability, or discuss your specific requirements. Let us keep your fleet moving.