HomeSuspension > Suspension, Springs and Related ComponentsUnity 31-011700-4-S Air Spring to Coil Spring Conversion Kit - Front and Rear
Part #: 31-011700-4-S

Unity 31-011700-4-S Air Spring to Coil Spring Conversion Kit - Front and Rear

Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module, Front and Rear
⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module, Front and Rear
🚗Fitment: Jaguar, Super V8, Vanden Plas, XJ, XJ8, and XJR
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Unity Air Spring to Coil Spring Conversion Kit

The Unity Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module offers a reliable solution for Jaguar owners looking to convert their air suspension to coil springs. Designed specifically for Jaguar Super V8, Vanden Plas, XJ, XJ8, and XJR models, this kit simplifies suspension upgrades and repairs.

  • Pre-assembled complete strut assembly for straightforward installation
  • Includes bypass module for enhanced suspension performance
  • Converts air spring suspension to coil spring setup
  • Compatible with Jaguar Super V8, Vanden Plas, XJ, XJ8, and XJR models
  • Part number 31-011700-4-S for precise identification

Product Line Details: Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module

This product is part of Unity's Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module line, which focuses on providing fully assembled strut units that integrate a bypass module. This design streamlines the conversion process from air springs to coil springs, reducing installation complexity and ensuring consistent suspension behavior tailored to specific vehicle models like the Jaguar XJ series.

Detailed Product Description

The Unity 31-011700-4-S conversion kit replaces the original air spring suspension components with a coil spring setup, offering a durable and maintenance-friendly alternative. The pre-assembled strut assembly includes a bypass module that helps regulate suspension dynamics, maintaining ride quality and handling characteristics. This kit is engineered to fit Jaguar Super V8, Vanden Plas, XJ, XJ8, and XJR models, ensuring compatibility and proper fitment without the need for additional modifications.

Common Applications and Problem Solving

  • Addresses air spring failure or leaks in Jaguar XJ and related models
  • Eliminates costly air suspension compressor repairs
  • Improves suspension reliability for older Jaguar Super V8 and Vanden Plas vehicles
  • Provides a consistent ride height and handling after air suspension removal
  • Reduces maintenance complexity associated with air suspension systems

Installation Notes and Tips

Installation of the Unity 31-011700-4-S kit requires removal of the existing air spring components and replacement with the pre-assembled coil spring strut assembly. It is recommended to have professional suspension experience or consult a qualified technician to ensure proper fitment and alignment. Verify compatibility with your Jaguar model before installation to avoid fitment issues.

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 undergo quality control inspections to ensure durability and performance. For warranty information, refer to Unity’s official documentation or contact the manufacturer directly.

This part fits 22 vehicles. Search below:

YearMakeModelPositionNotes
2010JaguarXJFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2009JaguarSuper V8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2009JaguarVanden PlasFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2009JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2009JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2008JaguarSuper V8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2008JaguarVanden PlasFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2008JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2008JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2007JaguarSuper V8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2007JaguarVanden PlasFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2007JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2007JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2006JaguarSuper V8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2006JaguarVanden PlasFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2006JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2006JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2005JaguarSuper V8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2005JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2005JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2004JaguarXJ8Front and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
2004JaguarXJRFront and RearPre-Assembled Complete Strut Assembly Kit Replacing Air Strut Assemblies w/ ride light bypass module; ; Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module

* 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:

C-2745

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