Quality Hydraulic Shock Absorber from China.
https://www.airsuspensionpart.com/chinahydraulic_shock_absorber_for_mercedes_benz_s_class_w221_rear_left_abc_strut_221320891353240812.html
Guangzhou Yuou Technology Co., Ltd quality manufacturer from China.
Our company is dedicated to the research and development of highend sedan air suspension,
Production, processing, and export sales oriented enterprises. The company mainly develops air springs, air shock absorbers, air pumps, and air suspension accessories for luxury cars in the aftermarket such as Mercedes Benz, BMW, Audi, Land Rover, Porsche, and Volkswagen.

Mercedes Benz W221 Rear Left Hydraulic Shock Absorber | Product Core Description

1. Precise fit, factory-grade performance
Vehicle-specific: Strictly matching the W221 chassis (2005-2013 Mercedes-Benz S-Class rear left suspension), seamlessly compatible with the air suspension system (if the model is equipped).
Performance restoration: certified by TÜV Germany, the damping coefficient, stroke length and mounting interface are all 100% in line with the Mercedes-Benz factory standard, ensuring the dynamic stability and comfort of the vehicle as before.

2. Innovative hydraulic damping technology
Intelligent Shock Absorption: Adopting multi-layer pressure valve design, the hydraulic oil flow rate is automatically adjusted according to the impact strength of the road surface, low-speed bumps are softened and filtered, high-speed impacts are rigidly supported, and body shaking is reduced by 45%.
Double-cylinder reinforced structure:
Outer cylinder: electroplated anti-rust coating + anti-debris impact design, resisting salt spray and rainwater corrosion, prolonging life.
Inner Cylinder: High precision piston rod (hard chrome polished surface) + Nitrogen gas pressurised sealing technology, eliminating oil leakage, operating temperature range 30℃ to 130℃.

3. Silence and durability breakthrough
Silencing bushing: polyurethane cushioning, eliminating metal and rubber friction rattles, reducing noise by 60% (laboratory measurement).
Extreme test verification:
200,000 times fatigue test: simulate 10 years of high-intensity road conditions, no performance degradation.
Salt spray test: 500 hours without corrosion, suitable for high humidity/coastal areas.

4. User Value Upgrade
Safety Enhancement: 30% reduction in cornering roll, 25% reduction in body pitch for emergency braking, improving handling confidence.
Chassis protection: reduce vibration transmission, extend the life of swing arm, bearing and other peripheral parts by more than 20%.
Comfortable experience: under the scenarios of city speed bumps, high-speed seam road, gravel road, etc., the sense of bumps inside the car is significantly reduced, comparable to the texture of a new car.

We can supply:
Mercedes Benz Air Suspension Parts : https://www.airsuspensionpart.com/suppliermercedes_benz_air_suspension_parts4565498.html
BMW Air Suspension Parts : https://www.airsuspensionpart.com/supplierbmw_air_suspension_parts4565516.html
Air Suspension Shock : https://www.airsuspensionpart.com/supplierair_suspension_shock4565523.html
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