Defender 90 4-Corner Full-Air

We also offer a full fitting service from our Ongar, Essex workshop. Please call us on 01277 552030.
 
Looking for the Defender 110 or 130 kit? Click here for Defender 110/130.
 
Land Rover's Defender is known as one of the most capable and iconic 4x4s ever built — used across the world in the most arduous conditions, the Defender stands its ground against any modern 4x4 and continues to operate alongside military vehicles worldwide. The 90 wheelbase is the original short-wheelbase Defender — agile, compact and at home in terrain that longer wheelbase variants simply can't reach.
 
On Air Suspension's Defender 90 air suspension kit transforms that capability further — improving on-road behaviour for daily use while increasing ground clearance when venturing off-road. Available with Fox or Koni shock absorbers, in mechanical, controlled and fully-equipped configurations, plus a specialist LowRider variant.
 
When your Defender is fitted with standard coil suspension, the ride is a compromise between off-road ability, load carrying and normal road use. By fitting a full 4-corner air suspension kit from On Air Suspension, ride quality is significantly improved and vehicle height can be adjusted to a pre-set position relevant to your needs. Wheel travel is optimised at every height setting, and your chosen ride height is maintained regardless of legal load.*
 
Benefits of the On Air Suspension Full Air Conversion Kit
Improved vehicle stability and handling under all loaded conditions
Increased comfort and enhanced driving experience
Fully adjustable heights with intelligent controls
Optimised suspension geometry
Constant ride height under all loaded conditions up to vehicle full GVW*
Easily installed and user-friendly system
 
On Air Suspension use only high-quality materials to give you the most reliable kit for your vehicle. Our system is designed by engineers using proprietary parts designed in-house to maximise performance of the overall system. In-house designed strut towers and shock mounts provide the ideal suspension geometry for the Defender 90. Tuned air springs are designed to work in unison front to rear at each ride height for best performance. Each part has been through the relevant R&D process to bring the most comprehensive 4-corner Defender 90 air suspension kit on the market.
 
Bespoke air spring units are used in conjunction with Fox or Koni shock absorbers and a 4-corner / 4-sensor automatic control system. Electronic components have been durability tested and in many cases are shared with those fitted to European cars for factory-fit air suspension. The AMK compressor** is a highly robust unit with low noise and vibration.
 
**AMK compressor included in our 4-corner kits with controls.
 
The Land Rover Defender 90 air suspension kit comes complete with all necessary parts, is straightforward to install and requires minimal drilling during fitment — including air tank, airlines, brackets, compressor, ECU, controls, air springs and your choice of Fox or Koni shock absorbers.
 
Fox or Koni — Choose Your Setup
 
Kit Features
Constant ride height*
Increased comfort
Improved stability and driveability
Pre-set heights for electronic control system
Access height — low for easy entry and exit
Ride height — normal road use
Off-road height — increased clearance
Multi-axis horizon levelling add-on available on request
 
Technical Specification
Kit number — AKF1090Z (full 4-corner with Koni shocks)
Wheel travel — ~180mm
Off-road position — +40mm
Access position — -50mm
*Please refer to Land Rover for Defender official payload capability.