HomeSuspension > Suspension, Springs and Related ComponentsUnity 31-113400 Air Spring to Coil Spring Conversion Kit - Front
Part #: 31-113400

Unity 31-113400 Air Spring to Coil Spring Conversion Kit - Front

Pre-assembled Complete Strut Assembly Conversion Kit, Front
21 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Pre-assembled Complete Strut Assembly Conversion Kit, Front
Fitment: Mercedes-Benz, S350, S430, S500, and S600
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Unity Front Air to Coil Spring Conversion Kit

The Unity Pre-assembled Complete Strut Assembly Conversion Kit offers a reliable solution for Mercedes-Benz owners looking to convert their front suspension from air springs to coil springs. Designed specifically for the Mercedes-Benz S350, S430, S500, and S600 models, this kit ensures a precise fit and dependable performance.

  • Pre-assembled front strut assembly for straightforward installation
  • Converts air spring suspension to coil spring setup
  • Compatible with Mercedes-Benz S350, S430, S500, and S600 models
  • Part number 31-113400 for accurate identification
  • Durable construction designed for suspension longevity

About the Pre-assembled Complete Strut Assembly Conversion Kit Line

The Unity Pre-assembled Complete Strut Assembly Conversion Kit line is engineered to simplify suspension upgrades by providing a fully assembled strut ready for installation. This approach reduces installation time and potential errors compared to assembling components separately. The kit is tailored to convert front air spring suspensions to coil springs, offering a practical alternative for vehicles originally equipped with air suspension systems.

Product Details and Compatibility

This front-position air spring to coil spring conversion kit is specifically designed for Mercedes-Benz S-Class models including the S350, S430, S500, and S600. The part number 31-113400 identifies this exact kit, ensuring compatibility and ease of ordering. By replacing the air spring system with coil springs, this kit provides a consistent and maintenance-friendly suspension setup for the front axle.

Common Applications and Problem Solving

  • Addresses air suspension failure or leaks in front air springs
  • Eliminates costly air compressor and sensor repairs
  • Provides a stable and predictable ride height without air suspension components
  • Ideal for vehicles with aging or malfunctioning air suspension systems
  • Facilitates suspension system simplification for easier maintenance

Installation Notes and Tips

Installation of the Unity 31-113400 kit requires standard suspension tools and mechanical knowledge. Since the kit is pre-assembled, it reduces assembly steps but still requires proper alignment and torque specifications. It is recommended to have a professional technician perform the installation to ensure safety and optimal performance. Verify compatibility with your specific Mercedes-Benz model before installation.

Quality Assurance and Warranty

Unity manufactures this conversion kit with quality materials to meet OEM standards. While specific warranty details are not provided here, Unity products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms related to part number 31-113400.

BrandUnity
Part Number31-113400
PositionPre-assembled Complete Strut Assembly Conversion Kit, Front
PositionFront

This part fits 21 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2006Mercedes-BenzS350RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2006Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2006Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2006Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2005Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2005Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2005Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2004Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2004Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2004Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2003Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2003Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2003Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2002Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2002Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2002Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2001Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2001Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2001Mercedes-BenzS600RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2000Mercedes-BenzS430RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit
2000Mercedes-BenzS500RWDFrontExcludes 4Matic; Pre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies; Pre-assembled Complete Strut Assembly Conversion Kit

* 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.