Matching Right-Side Air Strut for W221 4Matic (OE# A2213201838)
Engineered as the perfect counterpart to the left-side 4Matic strut (A2213201738), this front right unit ensures balanced suspension performance across the front axle of all-wheel-drive W221 S-Class models (2007–2012).
Mirror-matched valve tuning – calibrated specifically for the right-side chassis geometry to maintain level cornering and straight-line stability
Reinforced upper mount – handles the extra torsional stress from 4Matic drivetrain on the right-front corner
Precision ADS signal mapping – matches OEM damping curves for seamless integration with factory control module
Direct bolt-on replacement – no modification, no dashboard warnings
IATF16949 certified | 12-month warranty | Complete assembly ready to install
MOQ 2 pcs | 1–7 days delivery | Custom packaging available
Save significantly vs. Mercedes dealer pricing
Key attributes
| Product name | Air Shock Absorber,Air Ride Suspension,Air Strut |
| Model | For Mercedes-Benz S-Class W221 |
| OE NO. | A2213201838 |
| Position | Front Right |
| Material | Steel+Aluminum+Rubber |
| Certification | CE / EAC / ISO9001 / IATF16949 |
| Warranty | Guaranteed products |
| Purpose | for replace/repair |
| Delivery time | 1-7days |
| MOQ | 2 PCS |
| Package | Brand/customized packaging |
Product Advantages – Air Ride Shock for Mercedes-Benz S-Class W221 (2007–2012) Front Right with ADS & 4MATIC (OE# A2213201838)
1. 1:1 OE Fitment – Direct replacement for W221 front right, matches OE# A2213201838. Specifically engineered for 4MATIC AWD front-right axle geometry. Mounting points, electrical connectors, and stroke length match OEM exactly. Plug-and-play install, no ADS error codes triggered.
2. 4MATIC Right-Side Reinforced Design – AWD front-right axle experiences greater instantaneous torque shock and heat load due to transmission output shaft offset. This strut features a thickened piston rod (12% larger diameter than RWD versions) and high-heat-resistant sealing compound (sustained 150°C tolerance) – specifically engineered for the added power load and heat dissipation challenges on the right side.
3. Independent Right-Side ADS Precision Control – Built-in independent high-response solenoid valve works with W221’s ADS II system for left/right independent damping adjustment. Actively boosts right-side support during right-hand turns to reduce roll. During braking, increases front-right damping in milliseconds to effectively minimize nose-dive and deliver more stable braking distances.
4. Extreme Condition Validation – In addition to 3+ million fatigue cycles, units pass dedicated 4MATIC front-axle torque endurance tests (simulating strut performance under sustained high-torque front-wheel output during hard acceleration, hill climbing, and low-traction conditions) – guaranteeing durability with frequent AWD system engagement.
5. Certified & Warranted – EAC, CE, ISO9001, IATF16949 certified. 12-month warranty. Each unit undergoes 100% air tightness, load, and ADS solenoid response speed testing before shipment.
6. Flexible Ordering & Cost-Effective – MOQ 2 PCS, 1–7 day fast shipment. Neutral or custom packaging available. Lower price than dealer OEM. Complete assembly included (mounting bolts and dust boots). Return rate below industry average.
Since 2008, we are the first batch of factories to do air suspension in China, and for 18 years, we have focused on the research and development and production of high-quality air suspension.
One-stop purchase of air suspension system accessories, including: air suspension, air pump, distribution valve, air bag, height sensor and more. issues responsibly.
1.18 years focus on the development, production and sales of high-quality air suspension
2.Return rate as low as 1%
3.High brand value
4.Professional business team
Production standards: strictly refer to ISO9001:2000 and ISO/TS16949 quality management system standards, OE standards to control the accuracy of raw materials
Test criteria: Up to 5 million fatigue tests
Most of our products do not require a minimum order quantity and can be delivered within 1-7 days, 8000㎡+ stock.
Middle East, Africa, Russian-speaking regions, Southeast Asia, South America, more than 80 countries and regions.
4. Installation and after-sales technical guidance, training
The business team responds within 2 hours and has a solution within 24 hours.
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Huaju Construction Innovation Industrial Park, No. 3 Nanheng 2nd Road, Longhe West Road, Longgui Street, Baiyun District
