Product Introduction

This Brake Drum AZ9112440001 is an OEM heavy-duty brake drum for heavy-duty trucks and commercial vehicles. It is precision-cast from high-grade gray cast iron, engineered to deliver reliable, consistent braking performance under heavy-load and long-haul operations.

Performance

• High-Grade Cast Iron Construction: Manufactured from premium gray cast iron with a refined graphite structure, this brake drum offers exceptional thermal conductivity, wear resistance, and impact strength—a high performance heavy-duty brake drum.

• Precision Machining: The drum is precision-machined to exact OEM specifications, ensuring a perfect fit with brake shoes and optimal contact area for consistent braking force.

• Superior Heat Dissipation: The optimized design with integrated cooling fins efficiently dissipates heat generated during heavy braking, preventing brake fade and ensuring reliable performance on long downhill runs.

• Robust Durability: The thick-walled construction and reinforced mounting flange resist cracking and deformation under extreme mechanical stress, extending service life in harsh undercarriage environments.

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

Core Function

1. Serves as the friction surface for brake shoes, converting kinetic energy into heat to slow or stop the vehicle—a core part of heavy duty truck brake parts.

2. Withstands repeated mechanical and thermal stress during heavy braking, ensuring consistent performance and safety.

3. Maintains dimensional stability under high temperatures, preventing brake fade and ensuring responsive braking under heavy loads.

Brake Drum AZ9112440001 Sinotruk – OEM Heavy-Duty Brake Drum for HOWO Trucks

When your fleet depends on safe, reliable stopping power under extreme loads, every component in the braking system matters. The Brake Drum AZ9112440001 Sinotruk is a precision-cast, OEM-specification brake drum engineered specifically for heavy-duty trucks and commercial vehicles. Built from high-grade gray cast iron, this brake drum delivers consistent, fade-resistant braking performance — whether your trucks are hauling heavy cargo across long distances or navigating demanding terrain. As a trusted global supplier of genuine Sinotruk parts, Mettlead brings you factory-direct pricing, strict quality control, and fast worldwide delivery so you can keep your customers’ fleets running safely and profitably.

Key Features and Benefits of Brake Drum AZ9112440001

This isn’t just another brake drum — it’s a critical safety component designed to meet the rigorous demands of Sinotruk heavy-duty applications. Here’s why wholesale distributors and fleet operators trust this part:

• OEM-Grade Quality: Manufactured to original Sinotruk specifications (Part No. AZ9112440001), ensuring perfect fitment and reliable performance without modifications.
• Premium Gray Cast Iron Construction: Precision-cast from high-grade gray cast iron, which provides excellent heat dissipation, superior wear resistance, and outstanding vibration damping during braking.
• Consistent Braking Performance: Engineered to deliver uniform friction contact and stable stopping power, even under heavy-load and high-temperature conditions that would compromise inferior drums.
• Extended Service Life: The optimized metallurgical composition resists thermal cracking and scoring, significantly extending replacement intervals and reducing total cost of ownership for fleet operators.
• Precision-Machined Surfaces: Each drum undergoes CNC machining to ensure concentricity, balanced rotation, and smooth braking engagement — minimizing noise and vibration.
• Wholesale-Friendly Pricing: Factory-direct supply from China eliminates middlemen, giving you competitive margins that make your distribution business more profitable.
• Strict Quality Control: Every batch is inspected for dimensional accuracy, material hardness, and surface finish before shipment, so you receive parts that meet or exceed OEM standards.

Technical Specifications – Brake Drum AZ9112440001 Sinotruk

Below you’ll find the detailed technical parameters for this Sinotruk brake drum. These specifications help you confirm compatibility and communicate accurate product data to your customers:

Application Scenarios – Where This Brake Drum Fits

The Brake Drum AZ9112440001 is designed to serve multiple critical roles in the aftermarket supply chain. Whether you’re stocking parts for assembly lines or supplying repair shops, this drum meets the demand:

• Compatible Truck Models: Fits Sinotruk HOWO series heavy-duty trucks and select SITRAK models equipped with rear drum brake systems.
• Braking System Assembly: Ideal for new vehicle assembly or complete brake system rebuilds where OEM-spec components are required.
• Wear Replacement: Directly replaces worn or scored brake drums during routine maintenance intervals, restoring full braking efficiency.
• Repair and Overhaul: Perfect for fleet maintenance workshops performing brake overhauls on Sinotruk heavy trucks after extended service periods.

For more Sinotruk braking components, explore our complete Braking System Parts catalog. You can also browse our full range of Sinotruk HOWO Truck Parts or visit our comprehensive Sinotruk Truck Parts page for a complete overview.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

At Mettlead, we understand that wholesale distributors and regional agents need more than just quality parts — you need branding flexibility that supports your business identity. That’s exactly what we offer:

• White-Label Packaging: We supply Brake Drum AZ9112440001 in neutral packaging, ready for you to apply your own brand labels and build customer loyalty under your name.
• Custom Packaging Design: Need branded boxes with your logo, part numbers, and barcodes? Our team handles custom packaging production to your exact specifications.
• Flexible MOQ: We work with wholesale buyers to establish minimum order quantities that balance competitive unit pricing with manageable inventory levels.
• Strict Quality Assurance: Regardless of packaging format, every brake drum passes the same rigorous quality inspection — dimensional checks, hardness testing, and visual inspection — before leaving our facility.
• Factory Visits Welcome: We invite prospective partners to visit our production facilities in China to inspect quality processes firsthand and build long-term confidence in our supply chain.

Frequently Asked Questions – Brake Drum AZ9112440001 Sinotruk

What trucks does Brake Drum AZ9112440001 fit?

This brake drum is designed as a direct-fit replacement for Sinotruk HOWO heavy-duty trucks. It matches the OEM part number AZ9112440001 and installs on the rear axle drum brake assembly without any modifications required.

What material is this Sinotruk brake drum made from?

The Brake Drum AZ9112440001 is precision-cast from high-grade gray cast iron (HT250). This material is specifically chosen for brake drums because it offers excellent thermal conductivity, high wear resistance, and superior vibration damping — all essential for safe, long-lasting braking performance.

How does this brake drum handle heat buildup during heavy braking?

Gray cast iron naturally dissipates heat more effectively than many alternative materials. Additionally, the drum’s wall thickness and casting geometry are optimized to spread thermal energy evenly, which prevents hot spots, reduces brake fade, and resists thermal cracking over thousands of braking cycles.

Is this an OEM original part or an aftermarket replacement?

This brake drum is manufactured to OEM specifications and matches the original Sinotruk part number AZ9112440001. It delivers equivalent quality, fitment, and performance to the factory-installed component, making it a reliable replacement for fleet maintenance and aftermarket distribution.

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

Absolutely. Mettlead offers white-label and fully custom packaging options for wholesale orders. You can supply your brand artwork, and we’ll produce packaging that features your logo, part numbers, and any required labeling — helping you build brand recognition in your market.

What quality checks does this brake drum undergo before shipping?

Every Brake Drum AZ9112440001 passes a multi-point inspection process that includes dimensional accuracy verification, material hardness testing, surface finish evaluation, and visual defect screening. Only drums that meet our strict quality standards are approved for shipment.

How long does this brake drum typically last?

Service life depends on operating conditions, load weight, and driving patterns. However, because this drum uses premium HT250 gray cast iron and precision machining, it consistently delivers service life comparable to or exceeding the original factory-installed drum under normal heavy-duty operating conditions.

Ready to Stock Brake Drum AZ9112440001 Sinotruk? Get Your Wholesale Quote Today

If you’re a distributor, wholesaler, or fleet purchasing manager looking for a reliable supply of OEM-quality Sinotruk brake drums at factory-direct prices, Mettlead is your partner. We offer competitive bulk pricing, flexible payment terms, fast international shipping, and the quality assurance your business demands.

Take the next step:
Contact Us now to request pricing, confirm MOQ details, or ask any technical questions about Brake Drum AZ9112440001. Our team typically responds within 24 hours — let’s build a profitable partnership together.