Warranty: 1 YEARS ,Part name: rear brake drum 3502075-ZH04DA
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Chassis system
The Dongfeng KC rear brake drum 3502075-ZH04DA is manufactured from high-quality gray cast iron (HT250) —a material renowned for exceptional tensile strength and impact resistance. Its one-piece forging structure eliminates internal cracks or weak points, enabling it to withstand the high mechanical stress and thermal loads generated during heavy-duty braking, thus ensuring long-term structural stability
Product Attributes
Warranty: 1 YEARS ,Part name: rear brake drum 3502075-ZH04DA
PRODUCT DESCRIPTION
OE-Grade Precision & Perfect Fitment
Engineered to strictly comply with Dongfeng KC’s original equipment (OE) specifications, this brake drum features CNC-machined inner friction surfaces and mounting interfaces with a tolerance of ±0.05mm. It seamlessly matches the rear axle assembly and brake shoes of Dongfeng KC models, avoiding issues like abnormal vibration or uneven braking caused by mismatched components, and ensuring direct, hassle-free replacement
Efficient Heat Dissipation Design
Equipped with radial heat dissipation ribs on the outer surface and a optimized inner cavity structure, the brake drum accelerates heat transfer during braking. This design effectively reduces thermal accumulation—lowering the risk of "brake fade" (a drop in braking efficiency due to overheating) even during continuous heavy braking in mountainous areas or high-load transportation scenarios, thus maintaining consistent braking performance
Enhanced Wear Resistance & Long Service Life
The friction surface of the brake drum undergoes a special quenching treatment, increasing its surface hardness to HB200-240. This treatment significantly improves wear resistance, reducing the rate of surface abrasion caused by friction with brake shoes. Under normal operating conditions, the service life of this brake drum is extended by 20% compared to standard non-quenched alternatives, minimizing replacement frequency and maintenance costs
Safety-Focused Detail Optimization
The brake drum integrates multiple safety-oriented designs: its inner edge features a chamfered structure to prevent sharp edges from damaging brake shoes or sealing components; the mounting hole threads are reinforced to avoid stripping under repeated assembly/disassembly; and a corrosion-resistant galvanized coating on the outer surface protects against rust in humid or rainy environments. These details collectively enhance overall braking safety and component durability
TECHNICAL SUPPORT
1. Accessories selection consultation
- Provide ** intelligent selection tools ** (such as parts matching query system), input the vehicle model VIN code or engine model to match the corresponding parts number, reducing the selection error rate.
The technical team is available online 7×12 hours to answer technical questions about accessories (such as material compatibility and installation processes).
2. Customized development support
We offer specialized R&D services for special market demands (such as heat dissipation accessories for high-temperature regions in the Middle East and dedicated suspension components for road conditions in Africa), and complete sample delivery within six weeks.
3. Training and Technical materials
Provide remote/on-site training for the customer's after-sales team (such as diagnosis of electrical control accessories and DPF regeneration operation), along with multilingual versions of the "Accessories Installation Manual" and "Troubleshooting Guide".
4. Quality Traceability and Improvement
Through the QR code traceability system (one product, one code), track the production batch of accessories and the source of raw materials, respond quickly to quality complaints and initiate improvement processes.
AFTER-SALES AND LOGISTICS SUPPORT
After-sales service
Quality Assurance Policy
-The warranty period for original factory parts is 12 months (counting from the date of signature for receipt), covering material defects, process issues, and man-made damage.
- Provide "Localized Express repair Service" : Cooperate with third-party repair networks in markets such as Southeast Asia and the Middle East, and deliver emergency parts to designated repair points within 4 hours.
Return and Exchange Process
-The customer is required to submit the test report (such as a third-party appraisal) within the warranty period. After confirmation by Dongfeng, a reissue or refund will be arranged within 5 working days.
Logistics support
Warehouse Layout
-Five major regional accessory centers have been established globally (Southeast Asia, the Middle East, Africa, South America, and Europe) to achieve "next-day delivery" for mainstream accessories (covering customers within the regions).
Emergency Logistics Plan
-Emergency parts can be directly delivered within 48 hours via the "Dongfeng Exclusive Aviation Special Line" (such as engine ECU, brake valves and other key components).
Packaging Optimization
-Use shockproof and moisture-proof packaging (such as honeycomb cartons + pearl cotton), and reinforce fragile parts (such as glass, sensors), keeping the damage rate within 0.5%.
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