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The rear brake drum is a vital chassis component that works with brake shoes to provide safe, reliable stopping power for heavy-duty trucks. For SINOTRUK HOWO vehicles, the OEM number Rear Brake Drum identifies a premium-grade rear brake drum engineered to withstand extreme thermal and mechanical stress. As a trusted supplier of Sinotruk howo parts, Deruna offers this genuine brake drum, manufactured to the strictest OEM specifications.
This drum is cast from high-strength alloy iron, featuring a precision-machined friction surface and optimized heat dissipation characteristics that ensure consistent braking performance under the most demanding conditions. Whether you are performing routine brake maintenance or replacing worn drums, this component delivers the durability and stopping confidence that SINOTRUK HOWO trucks require.
OEM direct replacement – no modifications needed | Engineered for SINOTRUK HOWO heavy-duty axles
Rear Brake Drum
Задний тормозной барабан
Tambor de freno trasero
Rear Brake Drum
Задний тормозной барабан
Tambor de freno trasero
The AZ9761349001 rear brake drum is a precision-machined cast iron component that provides the friction surface for the brake shoes. It is designed for SINOTRUK HOWO heavy-duty trucks, offering exceptional wear resistance, thermal stability, and structural integrity under the most severe braking conditions.
Manufactured using advanced casting and heat treatment processes, the AZ9761349001 drum delivers consistent friction performance across a wide temperature range. Its uniform wall thickness and optimized ribbing ensure even heat distribution, minimizing the risk of distortion and hot spots that can lead to brake fade or vibration.
The Rear Brake Drum features a precision-ground inner surface that provides an ideal mating surface for new brake shoes, ensuring quick bed-in and consistent stopping power. Its robust construction and exact OEM dimensions guarantee a perfect fit on the wheel hub, with no need for additional adjustments.
Investing in the genuine Rear Brake Drum ensures that your truck maintains its original braking performance, with reliable stopping power in all conditions. This component is the preferred choice for fleet operators and workshops who demand uncompromising safety and durability.
| OEM Number | AZ9761349001 |
| Part Name | Rear Brake Drum |
| Brand | SINOTRUK HOWO |
| Component Category | Chassis / Brake System |
| Material | High-strength alloy cast iron (GG25 / equivalent) |
| Weight (approx.) | 38.5 kg (84.9 lbs) |
| Outer Diameter | 460 mm |
| Inner Diameter (nominal) | 420 mm |
| Width (friction surface) | 180 mm |
| Maximum Wear Limit (ID) | 424 mm (oversize) |
| Bolt Hole Pattern | 10 holes, M22 x 1.5 |
| Surface Hardness (HB) | 190–220 |
| Max. Operating Temperature | 600°C (intermittent) |
| Balancing | Dynamically balanced ≤ 30 g·cm |
| Application | SINOTRUK HOWO A7, T7, 6×4, 8×4, and most heavy-duty models with drum brakes |
All values are based on OEM engineering drawings for the Rear Brake Drum. Minor deviations may occur due to casting and machining tolerances.
The Rear Brake Drum is cast from premium GG25 iron, providing excellent wear resistance, thermal conductivity, and structural integrity under repeated heavy braking.
The ribbed outer design and uniform wall thickness of the AZ9761349001 promote even heat distribution, reducing the risk of hot spots and thermal cracking.
The inner surface of the Rear Brake Drum is ground to a precise finish, ensuring optimal contact with brake shoes, rapid bedding, and consistent friction coefficient.
Each AZ9761349001 unit is dynamically balanced to minimise rotational vibration, ensuring smooth braking and reduced stress on wheel bearings.
The alloy and heat treatment of the AZ9761349001 provide exceptional resistance to cracking and distortion from repeated thermal cycling.
With its durable material and precision manufacturing, the Rear Brake Drum delivers long-lasting performance, reducing brake overhaul frequency and lowering maintenance costs.
The brake drum is a safety-critical component that directly affects stopping distance, stability, and overall vehicle control. Using a counterfeit or substandard drum can lead to brake fade, cracking, and catastrophic failure. The genuine Rear Brake Drum eliminates these risks through OEM-grade materials, precision manufacturing, and rigorous quality control.
Key benefits of choosing the authentic AZ9761349001 drum:
Deruna sources the AZ9761349001 brake drum directly from authorized manufacturers, subjecting each unit to a thorough quality inspection. We package each drum securely to prevent damage during shipping, so it arrives ready for installation.
Proper installation and regular maintenance are essential to maximize the service life and braking performance of the AZ9761349001 drum. Follow these best practices:
Before installation, clean the hub mounting face and inspect the AZ9761349001 drum for any shipping damage, cracks, or surface defects.
Always fit new, genuine wheel stud nuts or bolts when installing the AZ9761349001 drum to ensure correct clamping torque.
Tighten the wheel nuts in a cross-pattern to the torque value specified in the SINOTRUK HOWO service manual for the AZ9761349001.
Clean the AZ9761349001 drum’s inner surface with brake cleaner and apply a thin layer of anti-seize to the hub pilot to prevent seizing.
Always refer to the SINOTRUK HOWO service manual for detailed wheel-end procedures, torque values, and wear limit inspections for the AZ9761349001 drum. Regular inspection of the drum’s inner diameter and thickness is essential to ensure safe braking performance.
The AZ9761349001 rear brake drum is compatible with a wide range of SINOTRUK HOWO heavy-duty trucks and commercial vehicles, including:
For models not listed, cross-reference your original brake drum part number with AZ9761349001. This drum is designed to fit SINOTRUK HOWO axles with drum brake systems and 10-hole wheel mounting patterns. Please consult your vehicle’s service manual or a qualified technician to confirm compatibility.
The AZ9761349001 rear brake drum is a cornerstone of the SINOTRUK HOWO braking system, providing reliable, fade-resistant stopping performance in the most demanding heavy-duty applications. Its high-strength alloy construction, precision machining, and optimised heat dissipation ensure that your truck can stop safely and predictably, time after time.
By choosing the genuine AZ9761349001 part, you protect your vehicle and its occupants from the dangers of inferior aftermarket alternatives – poor heat dissipation, cracking, and unpredictable braking. Instead, you invest in a component rigorously tested and validated by SINOTRUK HOWO, giving you peace of mind on every journey. Its superior thermal management, wear resistance, and balancing contribute to lower maintenance costs, reduced downtime, and enhanced safety.
As a dedicated supplier of Sinotruk howo parts, Deruna is committed to delivering the AZ9761349001 brake drum with the highest level of quality assurance. Every drum is inspected to meet OEM specifications, ensuring that you receive a product you can trust.
Equip your SINOTRUK HOWO with the genuine AZ9761349001 rear brake drum – engineered for strength, precision, and uncompromising stopping power.
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