Product Introduction

This Brake Drum AZ9112340006 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 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 AZ9112340006 Sinotruk – OEM Heavy-Duty Brake Drum for HOWO Trucks

When your fleet depends on reliable stopping power under extreme loads, every component in the braking system matters. The Brake Drum AZ9112340006 Sinotruk is a precision-cast, OEM-grade 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 AZ9112340006

This isn’t just another aftermarket brake drum — it’s an OEM-specification component designed to meet the exact tolerances required by Sinotruk HOWO heavy trucks. Here’s why distributors and wholesalers trust this part:

• Premium Gray Cast Iron Construction: The drum is precision-cast from high-grade gray cast iron, which provides excellent heat dissipation, vibration damping, and wear resistance. This means longer service life and fewer warranty claims for your business.
• OEM Dimensional Accuracy: Manufactured to match the original Sinotruk specifications, the AZ9112340006 brake drum ensures a perfect fit without modifications — saving your customers time and labor costs during installation.
• Superior Heat Management: Heavy-duty braking generates intense heat. The optimized wall thickness and metallurgical composition of this drum resist thermal cracking and brake fade, even during prolonged downhill descents or repeated stop-and-go cycles.
• Balanced and Machined Surface: Each drum undergoes precision machining to ensure a smooth, concentric braking surface. This translates to even brake shoe contact, reduced vibration, and quieter braking performance.
• Corrosion-Resistant Finish: A protective coating guards against rust during storage and shipping, so the drum arrives at your warehouse in ready-to-install condition.
• Cost-Effective Bulk Pricing: As a factory-direct supplier from China, Mettlead eliminates middlemen — giving you competitive wholesale margins that strengthen your bottom line.

Technical Specifications – Brake Drum AZ9112340006 Sinotruk

Application Scenarios – Where Does This Brake Drum Fit?

The Brake Drum AZ9112340006 is designed as a direct replacement for the following use cases:

• Compatible Vehicles: Sinotruk HOWO heavy-duty truck series and related commercial vehicle platforms equipped with rear drum brake systems.
• Braking System Assembly: Ideal for new vehicle assembly lines or CKD/SKD projects requiring OEM-grade brake components.
• Wear Replacement: A direct drop-in replacement when the original brake drum reaches its maximum wear limit or develops scoring, cracking, or out-of-round conditions.
• Maintenance and Overhaul: Perfect for fleet maintenance programs, repair workshops, and service centers that demand reliable, specification-correct parts for scheduled brake overhauls.

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

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

At Mettlead, we understand that distributors and wholesalers often need more than just a quality product — you need a supply partner who adapts to your brand strategy. That’s exactly what we offer:

• White-Label Packaging: We can ship Brake Drum AZ9112340006 in neutral packaging, allowing you to apply your own branding and build customer loyalty in your local market.
• Custom Packaging Design: Need branded boxes, labels, or specific packaging configurations? Our team works with you to create packaging that reflects your company’s identity.
• Strict Quality Control: Every brake drum passes through multiple inspection stages — from raw material testing and dimensional verification to surface finish checks and final balance inspection — before it leaves our facility.
• Flexible Order Quantities: Whether you’re testing a new market with a trial order or scaling up with container-load shipments, we offer flexible MOQs tailored to your business needs.
• Factory Visits Welcome: We invite partners to visit our facilities in China to inspect production processes, quality systems, and inventory firsthand.

For a comprehensive overview of all available Sinotruk components — from engine parts to chassis accessories — visit our Sinotruk Truck Parts hub page.

Frequently Asked Questions – Brake Drum AZ9112340006 Sinotruk

1. Is the Brake Drum AZ9112340006 an original OEM part or an aftermarket replacement?

This brake drum is manufactured to OEM specifications, meaning it matches the exact dimensions, material grade, and performance standards of the original Sinotruk part. It serves as a direct, bolt-on replacement — no modifications needed.

2. What material is the AZ9112340006 brake drum made from, and why does it matter?

It’s precision-cast from high-grade gray cast iron (HT250 or equivalent). Gray cast iron is the industry-standard material for brake drums because it offers excellent thermal conductivity, vibration damping, and wear resistance — all critical properties for safe, long-lasting braking under heavy loads.

3. How do I know when this brake drum needs replacement?

You should replace the Brake Drum AZ9112340006 when you observe any of the following: the drum diameter exceeds the maximum wear limit stamped on the drum, visible heat cracks appear on the braking surface, the drum is scored beyond resurfacing tolerance, or the drum is out-of-round causing brake pulsation and uneven shoe wear.

4. Which truck models does the AZ9112340006 brake drum fit?

This brake drum is designed for Sinotruk HOWO heavy-duty truck models that use the AZ9112340006 part number in their rear axle braking system. If you’re unsure about compatibility with a specific model or year, our technical team can verify fitment for you.

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

Absolutely. Mettlead offers white-label and fully custom packaging options. Many of our wholesale partners sell under their own brand, and we support that with neutral or branded packaging solutions tailored to your requirements.

6. What quality inspections does this brake drum undergo before shipping?

Each unit goes through a multi-stage quality control process: raw material composition analysis, dimensional inspection using precision gauges, surface roughness verification, balance testing, and a final visual inspection for casting defects. Only drums that pass every stage are approved for shipment.

Ready to Secure Your Supply? Get a Wholesale Quote Today

If you’re a distributor, wholesaler, or fleet parts buyer looking for a dependable source of Brake Drum AZ9112340006 Sinotruk at competitive factory-direct pricing, Mettlead is ready to be your long-term supply partner. We offer fast lead times, flexible payment terms, and the product expertise you need to serve your market with confidence.

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Contact Us now to request pricing, confirm MOQ details, or discuss custom packaging for your next order. Let’s build a profitable partnership together.