HomeSuspension > Suspension, Springs and Related ComponentsBilstein 40-221595 Air Suspension Spring - Rear
Part #: 40-221595

Bilstein 40-221595 Air Suspension Spring - Rear

B3 OE Replacement (Air), Rear
14 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
B3 OE Replacement (Air), Rear
Fitment: BMW, X5 and X6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Air Suspension Spring for BMW X5 and X6

The Bilstein 40-221595 air suspension spring is designed to restore the original ride quality and handling of your BMW X5 or X6. Engineered to meet OE specifications, this air spring provides consistent performance and durability for your vehicle's suspension system.

  • OE replacement air suspension spring for BMW X5 and X6 models
  • Part number 40-221595 ensures precise fitment and compatibility
  • Part of the Bilstein B3 OE Replacement (Air) series for reliable performance
  • Designed to maintain factory ride height and comfort
  • Manufactured to meet original equipment standards

About the Bilstein B3 OE Replacement (Air) Series

The B3 OE Replacement (Air) product line from Bilstein focuses on providing high-quality air suspension components that match the original equipment specifications. This series is engineered to offer a direct replacement solution for air springs, ensuring proper fit and function without compromising the vehicle's suspension dynamics. The 40-221595 air suspension spring is part of this line, delivering dependable performance for BMW X5 and X6 models equipped with air suspension systems.

Product Details and Specifications

The Bilstein 40-221595 air suspension spring is specifically designed for BMW X5 and X6 vehicles, providing a precise fit that supports the vehicle’s air suspension system. This component helps maintain the correct ride height and absorbs road irregularities, contributing to a smooth and controlled driving experience. Manufactured to meet original equipment standards, this air spring ensures durability and consistent performance over time.

Common Applications and Problem Solving

  • Restores proper ride height on BMW X5 and X6 air suspension systems
  • Replaces worn or leaking air springs causing uneven suspension
  • Improves vehicle handling and stability affected by faulty air springs
  • Eliminates air suspension warning lights related to spring failure
  • Addresses sagging or rough ride issues in air-equipped BMW models

Installation Notes and Tips

Installation of the Bilstein 40-221595 air suspension spring should be performed by a qualified technician familiar with BMW air suspension systems. Proper handling and care are essential to avoid damage to the air spring during installation. It is recommended to inspect related suspension components and air lines for wear or damage when replacing the air spring to ensure optimal system performance.

Quality Assurance and Warranty

Bilstein manufactures the 40-221595 air suspension spring to meet stringent quality standards, ensuring reliable performance and longevity. This part is backed by Bilstein’s commitment to OE replacement quality. Please refer to Bilstein’s official warranty policy for specific coverage details.

BrandBilstein
Part Number40-221595
PositionB3 OE Replacement (Air), Rear
SeriesB3 oe replacement (air)
TitleBilstein shock absorbers

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2014BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2013BMWX5xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2013BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2012BMWX5xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2012BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2011BMWX5xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2011BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2010BMWX5xDrive48iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2010BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2009BMWX5xDrive48iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2009BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2008BMWX54.8iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2008BMWX6xDrive50iRearWith Self-Leveling Suspension; B3 OE Replacement (Air)
2007BMWX54.8iRearWith Self-Leveling Suspension; 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:

37 12 6 790 07837 12 6 790 07937 12 6 790 08037 12 6 790 08137 12 6 790 08240-221632

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.