Guangzhou Wenny Auto Parts Co., Ltd.
| Car maker | Mercedes-Benz |
| Delivery Time | 1-7 working days |
| Condition | Brand-new control arm |
| Packaging Details | Support Wholesale & Neutral Packaging, cartons, ballets |
| Payment Terms | L/C,D/A,D/P,T/T |
| Product name | Front Lower Trailing Arm (Track Control Arm) |
| Position | Front Lower Trailing Left or Right |
| Packing | Neutral Packing or Customized design |
| Supply Ability | 50000 pcs per month |
| OE Number | A2213303711, A2213306511, A2213303811, A2213306611 |
| Model Number | Mercedes-Benz S-Class (W221) 2005–2013 (supplier table); catalog: S-Class 2005–2013 |
| Brand Name | SuspAir |
| Place of Origin | China |
| Certification | ISO9001/CE |
View Detail Information
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Product Specification
| Car maker | Mercedes-Benz | Delivery Time | 1-7 working days |
| Condition | Brand-new control arm | Packaging Details | Support Wholesale & Neutral Packaging, cartons, ballets |
| Payment Terms | L/C,D/A,D/P,T/T | Product name | Front Lower Trailing Arm (Track Control Arm) |
| Position | Front Lower Trailing Left or Right | Packing | Neutral Packing or Customized design |
| Supply Ability | 50000 pcs per month | OE Number | A2213303711, A2213306511, A2213303811, A2213306611 |
| Model Number | Mercedes-Benz S-Class (W221) 2005–2013 (supplier table); catalog: S-Class 2005–2013 | Brand Name | SuspAir |
| Place of Origin | China | Certification | ISO9001/CE |
| High Light | A2213303711 ，A2213306511 ，A2213306611 | ||
Front Lower Trailing Arm Left Right for Mercedes S-Class W221 2005-2013 A2213303711 A2213306511
Front lower trailing arm (track control arm) for the Mercedes-Benz S-Class (W221, 2005–2013) — Left A2213303711 / A2213306511 and Right A2213303811 / A2213306611 (Mercedes formats 221 330 37 11 / 65 11 and 221 330 38 11 / 66 11). The two numbers per side are the same-arm family (catalog-verified, incl. the S1 variants). European catalog data confirms the position (Right: Front Axle, Lower, Front), steel construction, with ball joint, approx. 3.7–3.8 kg per side. The left/right pair is a mirror pair — side-specific, not interchangeable. Every unit is quality-checked before shipment and with an 18-month warranty.
| Item | Content |
| Product Name | Front Lower Trailing Arm (Track Control Arm) - Front Axle, Lower, Front |
| Genuine OE No. (Left) | A2213303711 + A2213306511 (221 330 37 11 / 221 330 65 11) |
| Genuine OE No. (Right) | A2213303811 + A2213306611 (221 330 38 11 / 221 330 66 11) |
| OE Family | Same-arm family per side: Left 3711/6511 (+ S1 variant 221 330 65 11 S1); Right 3811/6611 (+ S1 variant 221 330 66 11 S1) - all catalog-verified |
| Aftermarket Cross No. | Interchange list available on request - order by OE number |
| Applicable Brand | Mercedes-Benz |
| Vehicle Line | S-Class (W221) |
| Model Years | 2005-2013 (supplier table); catalog: S-Class 2005-2013 - confirm by VIN |
| Chassis Code | W221 (per supplier table) |
| Common Models | S350 / S450 / S500 / S550 / S600 etc. (W221) |
| Installation Position | Front axle - Lower, Front - Left (A2213303711 / A2213306511) / Right (A2213303811 / A2213306611) |
| Arm Type | Control Arm (track control arm) - per catalog |
| Material | Steel (catalog-verified) |
| Ball Joint / Mount | With ball joint and with rubber mount (catalog-verified) |
| Dimensions | 541 x 125 x 104 mm (catalog) |
| Reference Weight | Approx. 3.7-3.8 kg per side (catalog: 3.746-3.805 kg) |
| Paired Article | Left & Right sold as mirror pair - side-specific, not interchangeable |
| Electric / Damping | None - plain mechanical suspension linkage (no electrical damping) |
| Packing | Individual protective packaging; left/right pair set available |
| Warranty | 18 months |
| Shipping | Sea / air / courier; export-standard packaging |
| Selling Point | Detail |
| Mercedes W221 Fit | Front lower trailing arms for Mercedes-Benz S-Class W221 (2005-2013) |
| Two OE Numbers per Side | Left A2213303711 + A2213306511, Right A2213303811 + A2213306611 - complete same-arm family incl. S1 variants |
| Left/Right Mirror Pair | Correct side-specific pair - not interchangeable |
| Steel + Ball Joint + Rubber Mount | Steel control arm with ball joint and rubber mount (catalog-verified) - ready to install |
| Front Lower Front Position | Correct position: Front Axle, Lower, Front - restores factory suspension geometry |
| Precise Geometry | Restores wheel alignment values, eliminates wandering and tire wear |
| Quality Checked | Every unit inspected before shipment |
| 18-Month Warranty | Extended 18-month warranty + pre-sale VIN check + after-sales technical support |
Q1: Which vehicles does this fit? Mercedes-Benz S-Class W221 (2005–2013) per the supplier table. European catalog data confirms S-Class 2005–2013. Confirm the exact model and year by VIN.
Q2: Why are there two OE numbers per side? Both numbers per side are the same-arm family (catalog-verified): Left A2213303711 + A2213306511 and Right A2213303811 + A2213306611 (incl. the S1 variants 221 330 65 11 S1 / 221 330 66 11 S1). Order by either number; confirm by VIN.
Q3: Is the left/right side interchangeable? No — this is a mirror pair: left (A2213303711 / A2213306511) and right (A2213303811 / A2213306611) are side-specific and NOT interchangeable. Order by side.
Q4: What is this arm exactly? The front lower trailing arm / track control arm — position: Front Axle, Lower, Front (Right position catalog-verified; Left per supplier table). Steel construction, with ball joint and with rubber mount (catalog: supplementary info).
Q5: Are the ball joint and rubber mount included? Yes — the arm is supplied with ball joint and with rubber mount (catalog: supplementary info).
Q6: Do I need to replace both sides at the same time? Same-axle pair replacement is strongly recommended; an old arm on the other side causes uneven geometry and tire wear.
Q7: What should I pay attention to during installation? Tighten all bolts to the workshop-manual torque specifications with the suspension under load; after installation perform a wheel alignment (camber/caster/toe) and check the ride height per workshop manual.
Q8: Warranty policy and shipping damage? 18-month warranty under normal use. For shipping damage, inspect within 48 hours of receipt and send photos/video — the seller arranges a replacement.
Q9: Service life and maintenance? Depends on road conditions and climate. Check the bush for cracks and the ball joint for play during routine service; replace the arm if bush wear, play or crash damage is found.
Q10: Are aftermarket alternatives available? The interchange list for these OE numbers is available on request. Order by the exact OE number and confirm the model/year and side by VIN.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2013
Total Annual:
1500000 USD dollars-3000000 USD dollars
Employee Number:
200~250
Ecer Certification：
Verified Supplier
Founded in 2013, our factory is deeply engaged in the production and development of automotive air suspension aftermarket parts. Our main product line covers air suspension strut assembly, air spring bellow, air compressor, valve block, height sensor and full range of repair kits, which are widely... Founded in 2013, our factory is deeply engaged in the production and development of automotive air suspension aftermarket parts. Our main product line covers air suspension strut assembly, air spring bellow, air compressor, valve block, height sensor and full range of repair kits, which are widely...
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