Unity
Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module

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

Brand Unity 31-011700-4-S
Position Front and Rear
Product line Pre-assembled Complete Strut Assembly Conversion Kit with Bypass Module
Fits Jaguar · 22 vehicles

Complete conversion kit. Converts air spring suspension to a coil spring setup.

Pre-assembled kit. Arrives ready for a faster, simpler installation.

Bypass module included. Helps complete the conversion with the needed electronics.

Cross-references Arnott Industries C-2745 for the same application. See all 1.

$738.65Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $738.65
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Jaguar Air Spring Conversion Kit

Replace failing air strut assemblies with a pre-assembled coil spring conversion solution for select Jaguar luxury sedans. Unity 31-011700-4-S is a front and rear air spring to coil spring conversion kit with a bypass module for vehicles that originally used air suspension.

This kit is built for 2004-2010 Jaguar XJ, XJ8, XJR, Vanden Plas, Super V8 applications and provides a direct path away from air strut-related faults. The Unity 31-011700-4-S conversion format simplifies the repair by replacing the air suspension assembly with a complete strut-style coil spring setup.

  • Pre-assembled complete strut assembly conversion kit
  • Converts air suspension to coil spring suspension
  • Includes bypass module for ride light system operation
  • Fits front and rear positions
  • Cross-reference: Arnott Industries C-2745

Fitment Details

  • Fits 2010 Jaguar XJ, front and rear
  • Fits 2005-2009 Jaguar Super V8, front and rear
  • Fits 2006-2009 Jaguar Vanden Plas, front and rear
  • Fits 2004-2009 Jaguar XJ8, front and rear
  • Fits 2004-2009 Jaguar XJR, front and rear

What This Kit Helps Address

  • Air strut leaks that cause suspension sag
  • Compressor cycling from loss of air pressure
  • Ride height warning lights related to failed air suspension components
  • Uneven stance from worn or damaged air springs
  • Repeated air suspension repair costs on Jaguar XJ platform vehicles

Installation Notes

Use this conversion kit on vehicles originally equipped with air suspension. Confirm exact model year and trim before ordering, since fitment varies across Jaguar XJ, XJ8, XJR, Vanden Plas, and Super V8 applications. The bypass module is included to address the ride light system after conversion.

Quality Assurance

Unity suspension components are built for direct replacement use in automotive repair applications. Part number 31-011700-4-S is cataloged as a pre-assembled complete strut assembly conversion kit with bypass module for the listed Jaguar fitments.

This part fits 22 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Arnott Industries — C-2745