HomeSuspension > Suspension, Springs and Related ComponentsWestar CK-7857 Air Spring to Coil Spring Conversion Kit - Rear
Part #: CK-7857

Westar CK-7857 Air Spring to Coil Spring Conversion Kit - Rear

Rear
7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, X5
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Air Spring to Coil Spring Conversion for BMW X5

The Westar CK-7857 Air Spring to Coil Spring Conversion Kit offers a durable and cost-effective solution for BMW X5 owners looking to replace their air suspension system. This kit is designed to provide a more reliable alternative to the original equipment manufacturer (OEM) air suspension components.

Key Features of the Westar CK-7857 Conversion Kit

  • All components are brand new; no re-manufactured units are used
  • Engineered to improve reliability compared to OEM air suspension parts
  • Offers significant cost savings over OEM air suspension replacements

Product Details and Benefits

The Westar CK-7857 conversion kit replaces the air spring system on the BMW X5 with a coil spring setup, reducing the complexity and potential failure points associated with air suspensions. By switching to coil springs, this kit enhances the durability and longevity of the suspension system while maintaining proper ride height and handling characteristics. The new components are manufactured to meet or exceed OEM specifications, ensuring compatibility and performance tailored specifically for the BMW X5.

Common Applications and Problem Solving

  • Addresses frequent air spring failures in BMW X5 air suspension systems
  • Eliminates issues related to air compressor malfunctions and leaks
  • Reduces maintenance costs associated with air suspension repairs
  • Improves suspension reliability for daily driving and long-term use
  • Provides a stable and consistent ride height without air system adjustments

Installation Notes and Tips

Installation of the Westar CK-7857 kit requires removal of the existing air springs and associated components. It is recommended to have the conversion performed by a qualified technician familiar with BMW suspension systems. Proper alignment and torque specifications should be followed to ensure optimal performance and safety. This kit is designed specifically for the BMW X5, so compatibility checks prior to installation are advised.

Quality Assurance and Warranty

Westar provides all-new components in the CK-7857 kit, avoiding the use of re-manufactured parts to ensure consistent quality. While specific warranty details are not provided here, Westar products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship. Buyers should consult the product documentation or contact the manufacturer for exact warranty terms.

BrandWestar
Part NumberCK-7857
Bullet 1All product are new, we do not sell re-manufactured units
Bullet 2Designed to be a more reliable alternative to the oem air suspens
Bullet 3Designed to be a significant cost savings over the oem style air

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2006BMWX5RearCoil Springs plus any necessary adapters
2005BMWX5RearCoil Springs plus any necessary adapters
2004BMWX5RearCoil Springs plus any necessary adapters
2003BMWX5RearCoil Springs plus any necessary adapters
2002BMWX5RearCoil Springs plus any necessary adapters
2001BMWX5RearCoil Springs plus any necessary adapters
2000BMWX5RearCoil Springs plus any necessary adapters

* 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:

4J2004K

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