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Bilstein 40-221601 Air Suspension Spring - Rear Left
Reliable Air Suspension Spring for BMW X5
The Bilstein 40-221601 air suspension spring is designed specifically for BMW X5 models, providing a direct replacement that maintains your vehicle's original ride quality. Engineered with a durable black paint finish, this air spring ensures long-lasting performance and corrosion resistance.
Key Features of Bilstein 40-221601 Air Suspension Spring
- Compatible with BMW X5 air suspension systems
- Finished with protective black paint for durability
- Part of the B3 OE Replacement (Air) series for reliable OE fitment
- Designed to restore factory ride height and comfort
- Part number 40-221601 ensures precise identification and fit
About the B3 OE Replacement (Air) Product Line
The B3 OE Replacement (Air) series by Bilstein focuses on providing high-quality air suspension components that meet original equipment specifications. This product line is engineered to offer a balance of performance and durability, making it suitable for restoring the suspension system of vehicles like the BMW X5 without compromising ride comfort or handling characteristics.
Product Description and Application
The Bilstein 40-221601 air suspension spring is crafted to replace worn or damaged air springs on BMW X5 models. Its black paint finish protects against environmental factors, helping to extend the lifespan of the suspension component. This air spring is designed to work seamlessly with the vehicle’s existing suspension system, ensuring consistent ride height and smooth handling.
Common Issues Addressed by This Air Suspension Spring
- Loss of ride height or uneven suspension
- Air spring leaks causing poor ride quality
- Reduced suspension responsiveness or comfort
- Noise or vibration from worn suspension components
- Failure of original air springs due to wear or damage
Installation Notes and Tips
When installing the Bilstein 40-221601 air suspension spring, ensure the vehicle is properly supported and the air suspension system is depressurized. Verify compatibility with your BMW X5 model year and inspect related suspension components for wear. Professional installation is recommended to maintain system integrity and safety.
Quality Assurance and Warranty
Bilstein manufactures the 40-221601 air suspension spring to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Bilstein products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship.
| Brand | Bilstein |
| Part Number | 40-221601 |
| Position | B3 OE Replacement (Air), Rear Left |
| Finish | Black paint |
| Series | B3 oe replacement (air) |
| Title | Bilstein shock absorbers |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2006 | BMW | X5 | 4.8is | Rear Left | B3 OE Replacement (Air) |
| 2005 | BMW | X5 | 4.8is | Rear Left | B3 OE Replacement (Air) |
| 2004 | BMW | X5 | 4.8is | Rear Left | B3 OE Replacement (Air) |
| 2003 | BMW | X5 | 4.6is | Rear Left | B3 OE Replacement (Air) |
| 2002 | BMW | X5 | 4.6is | Rear Left | B3 OE Replacement (Air) |
| 2001 | BMW | X5 | 4.4i | Rear Left | B3 OE Replacement (Air) |
| 2000 | BMW | X5 | 4.4i | Rear Left | B3 OE Replacement (Air) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.