Product Introduction

This Brake Drum WG9761450001 is an OEM heavy-duty brake drum exclusively engineered for Sinotruk heavy-duty trucks and commercial vehicles. Crafted from high-strength alloy cast iron with a precision-machined friction surface, it is designed to endure extreme thermal and mechanical stress during heavy-load transportation, long downhill descents, and frequent braking scenarios.

Performance

• Alloy Cast Iron Durability: Formed from premium alloy cast iron with enhanced carbon content, this brake drum delivers 30% higher wear resistance than standard gray cast iron, effectively resisting scoring, cracking, and thermal fatigue—a premium heavy-duty brake drum.

• Optimized Heat Dissipation: The integrated ribbed structure and balanced wall thickness accelerate heat dissipation, keeping operating temperatures stable and eliminating brake fade even during continuous heavy braking.

• Reinforced Structural Design: The thickened mounting hub and evenly distributed bolt holes enhance load-bearing capacity, preventing loosening or deformation under high torque and heavy vehicle weight.

Core Function

1. Acts as the core friction component of the drum brake system, cooperating with brake shoes to convert the vehicle’s kinetic energy into thermal energy, realizing reliable deceleration and parking—a key safety part of heavy duty truck brake parts.

2. Withstands repeated high-temperature and high-pressure impacts during frequent braking, maintaining structural and dimensional stability to avoid brake failure.

3. Ensures uniform friction contact with brake shoes, preventing uneven wear of brake components and extending the service life of the entire brake assembly.

Brake Drum WG9761450001 – OEM Heavy-Duty Brake Drum for Sinotruk HOWO Trucks

When your fleet faces punishing downhill grades, fully loaded trailers, and relentless stop-and-go cycles, every component in the braking system must perform flawlessly. The Brake Drum WG9761450001 is purpose-built for Sinotruk heavy-duty trucks, delivering the thermal resilience and mechanical strength that demanding commercial operations require. Manufactured from high-strength alloy cast iron and finished with a precision-machined friction surface, this brake drum doesn’t just meet OEM specifications — it embodies them. Whether you’re restocking your warehouse or fulfilling urgent fleet maintenance orders, Mettlead brings you factory-direct access to genuine-quality parts at competitive wholesale pricing.

Explore our full range of Sinotruk HOWO Truck Parts or browse all Braking System Components available from our catalog.

Key Features and Benefits of Brake Drum WG9761450001

Engineered for Extreme Conditions

This Sinotruk brake drum is not an ordinary aftermarket part. It’s engineered to withstand the intense thermal cycling and mechanical loads that heavy-duty commercial vehicles encounter daily. Here’s what sets it apart:

• High-Strength Alloy Cast Iron Construction: The carefully formulated alloy composition resists cracking, warping, and heat fade — even under sustained heavy braking. As a result, your customers experience fewer premature failures and longer service intervals.
• Precision-Machined Friction Surface: A smooth, uniform contact area ensures consistent brake shoe engagement, which translates to predictable stopping power and reduced vibration throughout the drum’s lifespan.
• OEM-Exact Dimensional Accuracy: Every bore diameter, bolt pattern, and mounting surface matches Sinotruk’s original factory specifications. Consequently, installation is straightforward with no modifications required.
• Superior Heat Dissipation: The optimized wall thickness and material density allow heat to dissipate efficiently, preventing thermal distortion during prolonged downhill descents and repeated heavy braking.
• Extended Service Life: Thanks to its robust metallurgy and balanced design, this brake drum consistently outlasts generic alternatives, reducing your customers’ total cost of ownership.

Why Wholesalers and Distributors Choose This Brake Drum

As a distributor or wholesale agent, you need more than just a quality product — you need a reliable supply chain partner. Here’s how Mettlead delivers value beyond the part itself:

• Factory-Direct Pricing: By sourcing directly from our manufacturing facilities in China, you eliminate middlemen and protect your profit margins.
• Flexible MOQ: We understand that market demands vary. Our minimum order quantities are structured to accommodate both trial orders and bulk procurement.
• White-Label & Custom Packaging: Build your own brand identity. We offer neutral or custom-branded packaging tailored to your market requirements.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and balance verification before shipment. In other words, you receive parts that are ready to sell with confidence.
• Fast, Reliable Delivery: Our streamlined logistics network ensures your orders reach you on schedule, keeping your inventory levels healthy.

Technical Specifications – Brake Drum WG9761450001 Sinotruk

Note: For detailed dimensional drawings, weight specifications, or compatibility confirmation with specific Sinotruk models, please contact our technical team directly.

Application Scenarios – Where This Brake Drum Performs

The Brake Drum WG9761450001 is specifically designed for the following applications within Sinotruk heavy-duty vehicle platforms:

• Compatible Vehicle Models: Sinotruk HOWO series heavy-duty trucks, SITRAK commercial vehicles, and related heavy-truck platforms utilizing the WG9761450001 specification.
• Braking System Assembly: Ideal for new vehicle assembly lines or complete brake system rebuilds where OEM-grade components are mandatory.
• Wear Replacement: The most common application — replacing worn brake drums during scheduled maintenance intervals or when inspections reveal surface scoring, cracking, or out-of-round conditions.
• Repair and Overhaul: Essential for fleet workshops performing comprehensive brake system overhauls, particularly after high-mileage service or following thermal damage events.

In each of these scenarios, using a genuine-specification brake drum ensures that braking performance, safety margins, and regulatory compliance remain intact. Furthermore, it protects the integrity of adjacent components like brake shoes, wheel cylinders, and axle assemblies.

Discover more Sinotruk components across all vehicle systems at our Sinotruk Truck Parts comprehensive catalog page.

OEM/ODM Capability

Mettlead isn’t simply a parts supplier — we’re a manufacturing partner equipped to support your brand-building goals. Our OEM and ODM capabilities give you the flexibility to differentiate your product offering in competitive markets:

• White-Label Production: Receive brake drums in unbranded packaging, ready for your own labeling and distribution strategy.
• Custom Packaging Design: From box artwork to part number labeling, we accommodate your branding specifications to create a seamless customer experience.
• Quality Documentation: We provide inspection reports, material certificates, and test data to support your quality assurance processes and customer confidence.
• Dedicated Account Management: Each wholesale partner receives personalized support for order tracking, technical inquiries, and logistics coordination.

Additionally, we welcome factory visits. If you’d like to inspect our production lines, quality control processes, and warehousing facilities firsthand, our team will arrange a comprehensive tour at your convenience.

Frequently Asked Questions – Brake Drum WG9761450001

What vehicles does the Brake Drum WG9761450001 fit?

This brake drum is engineered specifically for Sinotruk heavy-duty trucks, including the HOWO and SITRAK series. It matches the OEM part number WG9761450001, so it directly replaces the original factory-installed drum without any modifications. If you’re unsure about compatibility with a specific model year or configuration, our technical team can verify fitment for you.

What material is this Sinotruk brake drum made from?

The Brake Drum WG9761450001 is cast from high-strength alloy cast iron. This material is specifically chosen for its excellent thermal conductivity, resistance to heat-induced cracking, and long-term dimensional stability under repeated heavy braking loads. In short, it handles the heat so your customers’ trucks stop safely.

How does this brake drum handle heat fade during long downhill descents?

The alloy composition and optimized wall thickness work together to absorb and dissipate braking heat efficiently. Unlike lower-grade cast iron drums that may warp or develop hot spots, this drum maintains its roundness and surface integrity even during sustained mountain descents with heavy payloads. This means consistent pedal feel and stopping power when drivers need it most.

What quality control measures are applied during manufacturing?

Every production batch undergoes a multi-stage inspection process that includes dimensional verification against OEM tolerances, Brinell hardness testing to confirm material properties, and dynamic balance checks to prevent vibration issues. Only drums that pass all criteria are approved for shipment. Consequently, you can stock and sell these parts with full confidence in their reliability.

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

Absolutely. We offer complete white-label and custom packaging services. You can supply your own box design, labels, and part numbering system, and we’ll package each drum accordingly before shipment. This allows you to build brand recognition in your market while leveraging our manufacturing expertise.

What is the typical service life of this brake drum compared to aftermarket alternatives?

Because this drum uses OEM-grade alloy cast iron and undergoes precision machining, it consistently delivers service life comparable to the original factory part. Generic aftermarket drums often use lower-cost materials that wear faster and are more prone to cracking. By choosing the WG9761450001, your customers benefit from longer replacement intervals and reduced downtime.

How should this brake drum be stored before installation?

Store the brake drum in a dry, covered environment away from moisture and corrosive chemicals. The machined friction surface is treated with a protective coating to prevent surface rust during storage. Before installation, technicians should clean the friction surface with brake cleaner to remove any preservative residue and ensure optimal brake shoe contact from the first stop.

Ready to Stock the Brake Drum WG9761450001? Let’s Talk.

You’ve seen the specifications. You understand the quality. Now it’s time to secure your supply. Whether you need a trial order to test market demand or you’re ready to commit to bulk quantities, Mettlead is prepared to deliver — quickly, reliably, and at prices that protect your bottom line.

Here’s what happens when you reach out:

1. You send us your inquiry with quantity requirements and any packaging preferences.
2. We respond within 24 hours with pricing, lead time, and shipping options.
3. You approve, we produce and ship — it’s that straightforward.

Don’t let brake drum shortages cost you sales.
Contact Us Now
to request your wholesale quote for the Brake Drum WG9761450001 Sinotruk and discover why distributors across the globe trust Mettlead as their China-based truck parts partner.

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