Product Introduction

This Brake Spring WG9231342015 is an OEM heavy-duty brake return spring for heavy-duty trucks and commercial vehicles. It is precision-formed from high-grade spring steel, engineered to provide reliable, consistent brake shoe retraction under heavy-load and long-haul operations.

Performance

• High-Grade Spring Steel Construction: Manufactured from premium chrome-silicon spring steel, this brake spring offers exceptional tensile strength, fatigue resistance, and corrosion resistance—a high performance brake return spring.

• Precision Coiling: The spring is precision-coiled to exact OEM specifications, ensuring consistent tension and reliable brake shoe retraction.

• Corrosion Resistance: The black protective coating provides long-lasting protection against rust and corrosion, extending service life in harsh undercarriage environments.

• Robust Durability: The robust design resists permanent set and fatigue, maintaining consistent performance over millions of brake cycles.

• OEM Exact Fit: Optimized for Sinotruk heavy-duty truck models, it matches original dimensions and mounting points for seamless installation.

Core Function

1. Provides the necessary tension to retract brake shoes after braking, preventing brake drag and ensuring smooth, responsive brake operation—a core part of heavy duty truck brake parts.

2. Maintains consistent brake shoe clearance, reducing wear and extending the service life of brake components.

3. Withstands repeated flexing and tension changes during braking, ensuring reliable performance over millions of cycles.

4. Fully OEM-compatible for direct replacement, restoring the retraction and tension function of the brake system.

Brake Spring WG9231342015 Sinotruk – OEM Brake Shoe Return Spring for Heavy-Duty Trucks

When your heavy-duty truck’s braking system demands precision and durability, the Brake Spring WG9231342015 Sinotruk delivers exactly that. This OEM-grade Brake Shoe Return Spring is engineered to pull brake shoes back to their resting position the moment braking force is released — preventing drag, overheating, and premature lining wear. Manufactured from high-carbon spring steel with anti-corrosion treatment, it thrives under the punishing conditions of long-haul freight and heavy-load operations. Whether you’re restocking your warehouse or fulfilling fleet maintenance contracts, Mettlead supplies this critical component at factory-direct wholesale pricing with flexible MOQ options tailored for distributors and agents worldwide.

Why This Brake Spring WG9231342015 Keeps Fleets Running Safely

A worn or fatigued brake return spring doesn’t just reduce braking efficiency — it silently destroys brake linings, warps drums, and puts drivers at risk. Here’s how the WG9231342015 solves these problems at the source:

• Reliable Brake Shoe Retraction: Precisely calibrated tension ensures the brake shoe snaps back fully every time, eliminating residual drag that causes overheating and uneven wear.
• High-Fatigue Resistance: Formed from premium high-carbon spring steel wire, this spring maintains its rated pull force across hundreds of thousands of braking cycles without deformation.
• Anti-Corrosion Durability: Surface-treated to resist rust and environmental degradation, extending service life even in humid, salt-laden, or dusty operating environments.
• OEM-Exact Fitment: Dimensionally identical to the original Sinotruk factory part — no modifications, no guesswork, just bolt-on replacement.
• Reduced Maintenance Costs: By preventing brake drag and abnormal lining wear, this spring directly lowers per-kilometer operating costs for fleet operators.

Application & Vehicle Compatibility

The Brake Spring WG9231342015 is purpose-built for Sinotruk’s drum brake rear axle systems. It fits seamlessly into the following platforms:

• Sinotruk HOWO (all generations)
• Sinotruk HOWO A7
• Sinotruk HOWO T7H / TX
• SITRAK C7H / G7H
• Steyr series

Axle Compatibility: HC16 / AC16 rear axles with drum brake configuration (16-ton class).

Typical Replacement Scenarios:

1. Original spring fatigue — loss of rated tension after extended service
2. Spring fracture or breakage due to overloading or material fatigue
3. Routine drum brake overhaul and preventive maintenance
4. Brake drag diagnosis — spring identified as root cause of incomplete shoe retraction

Looking for more Sinotruk braking components? Browse our complete Braking System Parts catalog or explore the full Sinotruk HOWO Parts range.

Technical Specifications – Brake Spring WG9231342015

For a comprehensive overview of all available Sinotruk truck components, visit our Sinotruk Truck Parts hub page.

OEM/ODM Capability & Wholesale Advantages

As a China-based factory-direct supplier, Mettlead offers distinct advantages that protect your margins and simplify your supply chain:

• Factory-Direct Pricing: No middlemen. You source the Brake Spring WG9231342015 at true manufacturer cost, maximizing your resale margin.
• White-Label & Custom Packaging: Build your own brand identity. We pack under your label, your box design, your language — ready for your local market.
• Strict Quality Control: Every batch undergoes tension testing, dimensional inspection, and surface treatment verification before shipment.
• Complete Product Range: Beyond this brake spring, we supply the full spectrum of SINOTRUK, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON parts — consolidate your orders and reduce freight costs.
• Flexible Payment & Logistics: Secure payment channels (T/T, L/C, Trade Assurance) and reliable global shipping with full tracking.
• Factory Visits Welcome: We invite distributors and agents to inspect our facilities, verify quality processes, and build long-term partnerships face-to-face.

Frequently Asked Questions – Brake Spring WG9231342015

What exactly does the Brake Spring WG9231342015 do in the braking system?

This brake shoe return spring pulls the brake shoes away from the drum surface once the driver releases the brake pedal. Without proper spring tension, the shoes remain in partial contact with the drum — causing drag, excessive heat buildup, accelerated lining wear, and increased fuel consumption. In short, this small spring plays a big role in keeping the entire drum brake system functioning safely and efficiently.

How do I know when the Brake Spring WG9231342015 needs replacement?

Watch for these telltale signs: the truck pulls to one side during braking, brake drums overheat after normal driving, brake linings wear unevenly or prematurely, or you hear a scraping noise when the brakes are released. During routine brake inspections, visually check the spring for cracks, elongation, or loss of hook integrity. If the spring has lost its original shape or tension, replace it immediately.

Is this brake spring an exact OEM replacement?

Yes. The WG9231342015 is manufactured to original Sinotruk specifications — identical dimensions, wire diameter, coil count, and rated tension. It installs directly without any modification to the brake assembly.

What material is the Brake Spring WG9231342015 made from?

It’s precision-formed from high-carbon spring steel wire — the same grade used in OEM production. The surface receives anti-corrosion treatment (typically phosphating or electrophoretic coating) to resist rust in harsh operating environments.

Can I order this brake spring with my own brand packaging?

Absolutely. Mettlead offers full white-label and custom packaging services. You provide your brand artwork and specifications; we deliver finished, retail-ready packaged products. This is ideal for distributors building their own aftermarket brand presence.

What is the minimum order quantity for wholesale pricing?

MOQ is flexible and depends on your total order volume and packaging requirements. We work with both large-volume importers and growing distributors. Contact our sales team with your target quantity for a tailored quotation.

Should I replace brake return springs in pairs?

Yes — best practice dictates replacing all return springs on the same axle simultaneously. Even if only one spring has visibly failed, its counterpart has endured the same service life and is likely near the end of its fatigue life. Replacing in pairs ensures balanced retraction force and even brake wear across both wheels.

Ready to Secure Your Supply of Brake Spring WG9231342015?

Every day without a reliable parts supplier is a day your competitors gain ground. Mettlead delivers the Brake Spring WG9231342015 Sinotruk at factory-direct pricing, with quality you can stake your reputation on and lead times that keep your shelves stocked.

Here’s your next step:

1. Tell us your required quantity and packaging preference.
2. Receive a detailed quotation within 24 hours.
3. Approve samples, confirm order, and we handle the rest — from production to your warehouse door.

👉 Contact Us Now to request your wholesale quote for Brake Spring WG9231342015. Let’s build a profitable, long-term supply partnership together.