OEM Quality Rear Air Suspension Spring for BMW E66 (37126785536/55)
**Quick Overview**
1. OE quality with competitive aftermarket pricing
2. Fatigue testing exceeding 6,054,000 cycles
3. Accepts small orders
4. Direct factory-to-customer business model
5. Compatible with OE numbers:
- 3712 6785 535
- 3710 6778 797
- 3712 6758 579
- 3712 6785 536
**Product Photos**
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**Packaging & Shipping**
- Packaging: Neutral cartons or custom-designed packaging available
- Shipping: Available via sea, air, or express services (DHL, TNT, FedEx, etc.)
- We maintain inventory in our warehouse and will ship immediately upon payment receipt
**Our Services**
1. Reply to inquiries within 24 working hours
2. OEM, custom design, and private label options available
3. Customized solutions provided by experienced engineers
4. Exclusive discounts and sales area protection for distributors
5. Timely delivery and reliable after-sales service
6. Competitive factory pricing
**FAQ**
**What are your main advantages?**
i. Reasonable pricing and excellent customer service
ii. Reliable quality with long-lasting performance
iii. Secure and fast payment methods
iv. Quick and safe shipping options
v. Strong warranty and hassle-free returns
vi. Products exported globally to North America, Europe, Middle East, Africa, Southeast Asia, and more
**Where have you exported your products?**
We export to North America, Europe, the Middle East, Africa, and Southeast Asia, among other regions.
**What is your delivery time?**
Typically 5–7 working days after receiving payment.
**Product Categories**
- Air Spring Suspension and Shock Absorbers
- Passenger Car Air Spring Rubber Sleeves
- Other Components for Air Spring Suspension
**How do you ensure after-sales service?**
- Strict quality control during production
- Final inspection before shipment to ensure product integrity
- Continuous tracking and feedback from customers
**What do you do if a customer has a complaint?**
We respond to complaints within 24 hours.
**Why choose us?**
1. High-quality products at low prices
Our quality matches that of leading brands, supported by our own testing machines and lab. We also offer competitive pricing due to advanced manufacturing technology.
2. Extensive experience in air spring development
Our team of professional R&D experts continuously develops new products to meet customer needs. We have a wide range of air spring models and are confident in the quality of our products.
3. Reliable quality parameters
**Company Information**
Qingdao ATC Auto Parts Co., Ltd is a professional manufacturer specializing in air suspension systems and related components, primarily serving brands such as Mercedes-Benz, BMW, Audi, Land Rover, Lincoln, and Ford. With years of industry experience and a commitment to quality, we provide reliable and durable automotive parts to customers worldwide.
| Fatigue Life Testing | ≥605,400 cycles |
| Burst Pressure | ≥3.2 MPa |
| Airtightness Test (24 Hours) | ≤0.01 MPa |
| 100% Gas Detection |
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Ningbo Yinzhou Leisheng Machinery Co.,Ltd , https://www.nblscasting.com