Terrafirma TF266 2" Lift Air-to-Coil Suspension Conversion Kit – Discovery 3 & Discovery 4
The Terrafirma TF266 converts the factory air suspension on Land Rover Discovery 3 and Discovery 4 models to conventional coil-spring suspension while also providing an approximately 50mm / 2-inch increase in ride height.
It is designed for owners who want to eliminate the potential expense and inconvenience associated with ageing air-suspension components while gaining additional ground clearance from a permanently lifted suspension setup.
Once converted, the vehicle uses conventional coil springs at a fixed raised ride height rather than retaining the adjustable ride heights of the original air-suspension system.
What's Included?
The TF266 conversion kit includes:
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Front pre-assembled 2" lift coil-spring strut assemblies
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Rear pre-assembled 2" lift coil-spring strut assemblies
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Terrafirma EAS air-suspension override module
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Vehicle-specific wiring loom
The front and rear strut assemblies arrive pre-assembled, removing the need to build the spring and damper assemblies before installation.
What Does the EAS Override Module Do?
Simply replacing the original air suspension with conventional coil springs would normally cause suspension faults and warning messages because the vehicle's electronic systems continue to look for the air-suspension components.
The Terrafirma EAS override module is supplied to integrate the coil conversion with the vehicle's electronics.
Terrafirma has developed the conversion to retain important original electronic functions including:
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Terrain Response
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Headlight levelling
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Vehicle information-screen functions
2" Lift Ride Height
TF266 is the lifted version of Terrafirma's air-to-coil conversion system.
The spring and damper assemblies provide approximately 50mm / 2 inches of additional ride height, making the kit particularly suitable for vehicles where increased ground clearance is desirable.
Terrafirma has designed the suspension to provide good load-carrying characteristics while maintaining appropriate ride quality and handling.
Please note that converting to coil springs removes the original air suspension's ability to raise and lower the vehicle. The approximately 2" raised ride height becomes the vehicle's fixed suspension height.
Vehicle Fitment
Suitable for:
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Land Rover Discovery 3 / LR3
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Land Rover Discovery 4 / LR4
For vehicles where a lift is not required, see our TF265 standard-height air-to-coil conversion kit.
TF265 or TF266 – Which Kit Do I Need?
Both kits replace the original air suspension with conventional coil springs and use an electronic override system to retain the vehicle's associated electronic functions.
The principal difference is ride height:
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TF265 – approximately standard factory ride height
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TF266 – approximately 50mm / 2" increased ride height
Choose TF265 if you want to retain approximately the vehicle's normal road height.
Choose TF266 if you want the simplicity of a coil-spring conversion together with additional ground clearance and a permanently raised stance.
Why Convert from Air Suspension to Coil Springs?
The factory Land Rover air-suspension system provides excellent comfort and adjustable ride height, but as vehicles age there are more components which can potentially require repair, including air springs, compressors, valves, height sensors and air lines.
TF266 replaces the pneumatic spring system with conventional coil springs, removing many of those potential air-suspension failure points while also increasing ride height by approximately 2 inches.
For owners who value the original adjustable suspension heights, repairing and retaining the factory air suspension may remain the preferable option.
For owners looking for a simpler fixed-height suspension system together with increased ground clearance, TF266 provides a practical alternative without simply disabling the vehicle's associated electronic systems.
Frequently Asked Questions
How much does TF266 lift the vehicle?
TF266 is designed to provide approximately 50mm / 2 inches of additional ride height compared with the vehicle's normal road-height setting.
Can I still raise and lower the suspension after fitting TF266?
No. The original air springs are replaced with conventional coil springs, so the vehicle no longer has adjustable suspension height. It remains at the approximately 2" raised ride height.
Does Terrain Response still work after the conversion?
Yes. The Terrafirma EAS override module is designed to retain functions including Terrain Response, headlight levelling and the vehicle information-screen functions.
What is the difference between TF265 and TF266?
TF265 converts the vehicle to coil springs at approximately standard ride height. TF266 performs the same basic conversion but uses raised spring and damper assemblies to provide approximately 50mm / 2" additional ride height.
Are the springs and shock absorbers supplied assembled?
Yes. TF266 is supplied with pre-assembled front and rear coil-spring strut assemblies.
Part Number Information
Terrafirma Part Number: TF266
Supersedes: TF263 and TF264
Brand: Terrafirma
