Product Introduction
A21-2905010 Fade-resistant Leak-proof Precision-engineered Shock Absorber for Chery A5
Engineered for precision and durability, this shock absorber targets enhanced vehicle stability and ride comfort. Adopting dual-tube hydraulic technology, it optimizes damping force to suppress spring oscillations, reducing road vibrations by up to 35% in tests (SGS-certified). With a sealed monotube design, it resists corrosion and wear, ensuring consistent performance over 100,000+ km—aligning with OE standards. Our R&D team, with 8+ years in auto parts, fine-tunes valving for balanced responsiveness, tested across varied terrains. Trusted by aftermarket specialists, it delivers OE-fit reliability without compromising handling. Ideal for drivers prioritizing safety and control.
Product Advantage
1. Dual-Tube Hydraulic Technology: Consistent Damping for Control
Our shock absorber uses a precision dual-tube design—separating gas and oil chambers to eliminate foaming, a common issue with budget shocks. SGS-tested to reduce road vibrations by 35% vs. generic options, it maintains stable handling on potholed or wet roads. Refined over 8 years of R&D, this core tech balances comfort and performance—ideal for drivers prioritizing responsive steering.
2. Corrosion-Resistant Monotube Build: 100,000+ KM Durability
Crafted with a sealed monotube housing and zinc-nickel anti-corrosion coating, it resists rust from road salts or coastal humidity. Proven via 500+ hours of ISO 9227 salt-spray testing, it outlasts standard shocks—backed by our promise of consistent performance beyond 100,000 km. For aftermarket buyers, this means fewer replacements and long-term value.
3. Precision Valve Tuning: Terrain-Adaptive Performance
Our 10+-year suspension engineering team hand-tunes the valve system to adapt to changing loads—from highway cruising to off-road bumps. Dynamic testing on uneven surfaces ensures real-time damping adjustments, minimizing body roll and improving traction. Solves the “generic shock feel” problem for discerning drivers.
4. OE-Grade Fit & Third-Party Validation
Machined to match original equipment tolerances, it installs in minutes without modifications—cutting installer labor costs. CE-certified and recommended by 300+ aftermarket retailers, its reliability is validated by industry pros. Our ISO 9001 factory enforces strict QC, ensuring every unit meets OEM-level standards.
5. 1-Year Warranty: Risk-Free Ownership
We back our shock absorber with a 1-year limited warranty against manufacturing defects—an aftermarket leader in confidence. Our technical team offers 24/7 support for install questions, so you can sell with peace of mind.
Technical Parameters
| Parameter Category | Specification/Value | Test Standard/Validation |
| Type & Design | Dual-tube hydraulic shock absorber with monotube gas chamber separation | In-house R&D (8+ years) + SGS functional validation |
| Dimensions | Cylinder ID: Φ28mm; Piston rod OD: Φ14mm; Total length: 320mm (adjustable mounting) | ISO 16231-3 (dimensional tolerance ±0.1mm) |
| Damping Force | Compression: 500-800N @ 0.3m/s; Rebound: 800-1200N @ 0.3m/s | SGS dynamometer test (matches OE performance curve) |
| Stroke Length | 150mm (optimized for 80% road vibration absorption) | Internal terrain testing (potholes/wet asphalt) |
| Material & Coating | Cylinder: High-strength steel (SAE 4130); Piston rod: Chrome-plated C52100 copper alloy | Salt-spray test (ISO 9227): 500+ hours no corrosion |
| Operating Temperature | -40°C to 120°C (stable viscosity retention) | ASTM D4684 thermal cycling test |
| Sealing System | Triple-lip NBR seal + Teflon bushing (reduces friction by 20% vs. single-lip seals) | 100,000+ km wear test (no leakage or stiffness drop) |
| Lifespan | ≥100,000 km (proven via fleet testing with commercial vehicles) | Third-party fleet report (30 vehicles, 2 years) |
| Certifications | CE, ISO 9001:2015 (factory), SGS performance compliance | Global aftermarket compliance benchmark |
Product Uses
Here are specific application scenarios of Shock Absorber:
1. Urban Daily Commuting: Smooth Ride on Potholes & Speed Bumps
Ideal for navigating city streets with frequent speed bumps, uneven pavements, or minor potholes. Tested by SGS to reduce road-induced vibrations by 35% compared to generic shocks, it minimizes cabin jolts—ensuring driver comfort during daily 20-50km commutes. Our dual-tube design absorbs high-frequency shocks efficiently, making stop-and-go traffic or school-run routes less fatiguing. Trusted by aftermarket installers for urban fleets.
2. Rural/Unpaved Roads: Durability Against Gravel & Bumps
Built for off-grid or rural areas with gravel tracks, dirt roads, or random debris. Its high-strength steel cylinder and chrome-plated piston rod withstand repeated impacts from sharp stones—proven in 1,000+ hours of off-road simulation testing (internal lab) with zero structural deformation. Reduces downtime for repairs, ideal for farmers, delivery trucks, or weekend adventurers tackling rough terrain.
3. Highway Cruising: Stable Handling at High Speeds
Enhances control during highway driving, especially when overtaking or navigating curves. Refined by our 10+-year suspension engineers, its valve system adjusts damping in real time—limiting body roll by up to 25% vs. standard shocks (ISO 16231-2 dynamic test). Drivers report sharper steering response and reduced “float” at 100-120km/h, boosting confidence on long hauls.
4. Coastal/Moist Climates: Corrosion Resistance for Longevity
Perfect for regions with high humidity, sea spray, or frequent rain. Its zinc-nickel alloy coating and triple-lip seals resist salt and moisture—validated by 500+ hours of ISO 9227 salt-spray testing with no surface rust. Outperforms non-coated shocks in lifespan, making it a cost-effective choice for coastal communities or monsoon-prone areas.
Product Operate Guide
Before installation, clean mounting interfaces and inspect bushings/seals for wear—prevents leaks or misalignment. Align with OE torque specs (18-22Nm) using a calibrated wrench; over-tightening risks housing damage. Post-install, conduct a 5km road test at varying speeds to check for abnormal noises or body roll—our dual-tube design should suppress vibrations within 200m. For longevity, avoid harsh chemicals during cleaning and schedule annual suspension checks. Aligns with ISO 9227 corrosion standards for sustained reliability.
