HomeSuspension > Suspension, Springs and Related ComponentsUnity 31-573000 Air Spring to Coil Spring Conversion Kit - Rear
Part #: 31-573000

Unity 31-573000 Air Spring to Coil Spring Conversion Kit - Rear

Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit, Rear
⚙️ 20 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$565.69Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit, Rear
🚗Fitment: Land Rover, LR3, LR4, and Range Rover Sport
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Upgrade Rear Suspension on Land Rover LR3, LR4, Range Rover Sport

The Unity Pre-assembled Complete Strut Assembly Conversion Kit (part number 31-573000) offers a reliable solution for converting your rear suspension from air springs to coil springs. Designed specifically for Land Rover LR3, LR4, and Range Rover Sport models, this kit ensures a precise fit and improved suspension performance.

Key Features of the Rear Air Spring to Coil Spring Conversion Kit

  • Pre-assembled complete strut assembly for rear suspension
  • Converts air spring suspension to coil spring setup
  • Compatible with Land Rover LR3, LR4, and Range Rover Sport rear positions
  • Part number 31-573000 for easy identification and ordering
  • Designed to maintain proper suspension geometry and ride height

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 fully assembled components that replace air springs with coil springs. This product line focuses on delivering a direct-fit solution that reduces installation time and ensures consistent performance, particularly for vehicles originally equipped with air suspension systems.

Product Description and Application

This rear air spring to coil spring conversion kit is tailored for Land Rover LR3, LR4, and Range Rover Sport models. It replaces the factory air suspension components with coil springs, which can be beneficial for owners seeking a more conventional suspension setup or addressing issues related to air spring failures. The pre-assembled nature of the kit means the strut assembly is ready to install, minimizing the need for additional assembly or modification.

Common Issues Addressed by This Conversion Kit

  • Air spring leaks or failures in rear suspension
  • Unstable ride height due to air suspension malfunctions
  • Costly repairs associated with air suspension components
  • Desire for a simpler, more durable coil spring suspension
  • Improved reliability in off-road or heavy-duty use scenarios

Installation Notes and Tips

Installation of the Unity 31-573000 kit requires removal of the existing air spring components from the rear suspension of compatible Land Rover models. Since the kit is pre-assembled, it reduces the complexity of installation, but professional installation is recommended to ensure proper fitment and alignment. Verify compatibility with your specific vehicle model and year before installation.

Quality Assurance and Warranty

Unity manufactures this conversion kit to meet OEM standards for fit and function. While specific warranty details are not provided, Unity products typically adhere to industry quality controls to ensure durability and performance. Consult the product documentation or Unity directly for warranty information related to part number 31-573000.

BrandUnity
Part Number31-573000
PositionHeavy Duty Pre-assembled Complete Strut Assembly Conversion Kit, Rear
PositionRear

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2016Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2015Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2014Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2013Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2013Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2012Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2012Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2011Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2011Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2010Land RoverLR4RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2010Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2009Land RoverLR3RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2009Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2008Land RoverLR3RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2008Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2007Land RoverLR3RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2007Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2006Land RoverLR3RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2006Land RoverRange Rover SportRearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic Strut Assemblies; Heavy Duty Pre-assembled Complete Strut Assembly Conversion Kit
2005Land RoverLR3RearPre-Assembled Complete Strut Assembly Kit Replacing Air/Electronic 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:

CK-7865

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