Product Introduction
A21-8403750-DY Precise Anti-corrosion Reliable Fender for Chery
This A21-8403750-DY is a premium replacement front fender, engineered to meet or exceed stringent OEM specifications. Crafted from high-grade, cold-rolled steel, it undergoes a 7-layer anti-corrosion treatment, including phosphate coating and a premium electro-deposition (E-Coat) primer, ensuring exceptional rust resistance and a factory-perfect fit with precision within ±1.5mm.
Our rigorous quality control process includes 3D laser scanning to guarantee dimensional accuracy. The fender arrives with a uniform E-Coat primer finish, providing an ideal surface for seamless paint matching and a flawless, long-lasting exterior repair. This part is your trusted solution for restoring vehicle safety, structural integrity, and aesthetic appeal with OEM-level quality.
Product Advantage
1. OEM-Grade Fitment & Dimensional Precision
Achieve a perfect, hassle-free installation with our fender, engineered for flawless fitment. Utilizing advanced 3D laser scanning and digital prototyping, we ensure every contour and mounting point aligns with precision tolerances of under ±1.5mm. This commitment to dimensional accuracy eliminates installation gaps, reduces labor time, and guarantees a seamless factory-original appearance. Trust in a part that fits right the first time, restoring the vehicle's original lines and structural integrity without modification.
2. Superior Corrosion Resistance & Material Durability
Built to last, this fender is fabricated from high-tensile, cold-rolled steel and protected by a robust 7-layer anti-corrosion system. This process includes a zinc phosphate pre-treatment and a full-body cathodic electro-deposition (E-Coat) primer, which provides 360-degree coverage and salt spray test resistance exceeding 720 hours. This superior protection shields against rust, stone chips, and harsh environmental elements, ensuring long-term durability and preserving the vehicle's value and safety.
3. Optimized for Perfect Paint Match & Finish
This fender comes ready for the paint booth with a uniform, conductive E-Coat primer surface. This foundation ensures optimal paint adhesion, faster solvent evaporation, and a flawless, long-lasting finish that matches the vehicle's original color. Paint shops report a significant reduction in paint preparation time, while the high-quality substrate prevents issues like peeling or orange peel texture, delivering a showroom-quality result every time.
4. Rigorous Quality Assurance & Performance Testing
Every fender undergoes a stringent multi-point inspection process aligned with international IATF 16949 quality standards. Our testing includes material thickness gauging, fixture-based fitment checks, and finish consistency reviews. This data-driven approach guarantees that every part we ship is free from defects, meets precise mechanical performance criteria, and provides the reliable performance that professional installers and discerning DIYers expect.
Technical specification
| Specification Category | Detailed Parameter |
| OEM Part Number | A21-8403750-DY |
| Product Type | Front Fender (Front Wing) |
| Material Composition | High-Strength, Cold-Rolled Steel, Grade DC04 (1.0330) |
| Material Thickness | 0.70 mm ± 0.05 mm |
| Surface Treatment | 7-Layer Protection: Zinc Phosphate Coating + Cathodic Electro-Deposition (E-Coat) Primer |
| Corrosion Resistance | Salt Spray Test Rating: > 720 hours to Red Rust (ASTM B117 Standard) |
| Dimensional Tolerance | ± 1.5 mm (Verified via 3D Laser Scanning) |
| Finish | Uniform Electro-Deposition Primer, Ready for Painting |
| Coating Thickness | E-Coat Layer: 18-22 µm |
| Quality Standard | Manufactured in a Facility Certified to IATF 16949:2016 |
| Weight | Approx. 3.8 kg (May vary slightly by production batch) |
Product Uses
Here are specific application scenarios of Fender:
1. Collision Repair & Restoration
This fender is the ideal solution for professional body shops and DIY restorers addressing front-end collision damage. Whether replacing a dented, crumpled, or misaligned panel, its OEM-grade fitment ensures a perfect alignment with hood, bumper, and door gaps. The E-Coat primer foundation guarantees a seamless, long-lasting paint job that matches the vehicle's original finish, restoring both safety and aesthetic value after an accident.
2. Rust Damage Replacement
Combat the effects of corrosion with this durable, zinc-protected fender. It is a direct replacement for original panels that have been compromised by rust bubbles, holes, or severe surface scaling, particularly in wheel arches and lower sections. The multi-layer anti-corrosion system, tested to withstand over 720 hours of salt spray, provides superior protection against future rust, making it a vital repair for vehicles in regions that use road salt or have humid climates.
3. Insurance & Professional Repair Work
This part is trusted by insurance assessors and certified repair facilities for its guaranteed quality and reliability. Its certified IATF 16949 manufacturing standard and precise specifications ensure it meets strict insurance repair guidelines. Using this panel streamlines the claims process, reduces labor time due to its exact fit, and delivers a permanent, high-quality repair that maintains the vehicle's pre-accident condition and value, satisfying all stakeholders.
4. Quality Upgrade for Aged Vehicles
For older vehicles where the original fenders have minor fatigue cracks, fading, or multiple unsuccessful repair attempts, this panel offers a comprehensive renewal. It provides a like-new structural base, eliminating the need for repeated body filler work. Installing a new, primed fender is often more cost-effective than extensive metalwork and results in a cleaner, more durable finish, significantly enhancing the vehicle's appearance and longevity.
Product Operate Guide
For optimal results, we recommend a professional installation. This fender is designed for a direct bolt-on replacement. Before installation, thoroughly clean the contact surfaces and test-fit the new panel to verify a precise gap alignment (within ±1.5mm) with adjacent parts. Ensure all mounting points align correctly before final tightening. The E-Coat primed surface is ready for painting; for best durability, apply a full paint system (primer, basecoat, clearcoat) after appropriate surface preparation.
