4Terrain
4Terrain is Clutch Industries specialised Off-Road performance clutch brand. Used by defence forces around the world the clutch systems are engineered for the harshest of conditions.
4Terrain has two clutch ranges; 4Terrain Heavy Duty which is suited to hardworking 4×4’s and 4Terrain Ultimate which is built for the harshest environments where high torque capacity is essential.
The 4Terrain Heavy Duty replacement clutch kit is designed to exceed the performance and robustness of the original equipment clutch system. With a focus on increased torque capacity, every component is rigorously tested and developed for specific vehicle applications. Backed by over 70 years of expertise in OEM and aftermarket clutch manufacturing, CI delivers unmatched quality and reliability in clutch systems.
Unique to the 4 Terrain range is the Patented 4Terrain Off-Road Cover Assembly which is ideal for demanding 4x4 applications, Its high clamp load design provides increased clamping force, essential for off-road performance. The high clamp ER2 clutch cover is constructed from Spheroidal Graphite Castings which are up to 300% stronger than standard castings, known as Anti-Burst castings, this advance material ensure durability under extreme conditions, prolonging service life.
4Terrain Heavy Duty is a tough, no-nonsense clutch upgrade designed for hardworking vehicles. Engineered to handle high torque loads it leaves standard specification clutches behind.
The system has been engineered for the following uses that need higher than original torque capacity:
- Towing
- High weight loads
- Trade/commercial use
- Offroading usage
4Terrain Heavy Duty delivers an increase in torque capacity through the patented ER2 heavy duty cover assembly. This system features an increased clamp load of on average 20% higher than OE. The system also gains torque capacity from the Spheroidal Graphite Iron (SG Iron) ER2 grooved pressure plate. This groove has been specifically designed to increase the Mean Effective Radius of the pressure plate and assist in heat removal. The increase in the Mean Effective Radius of the cover assembly gives a significant increase in torque capacity.
The 4Terrain Heavy Duty Clutch system is built to endure the rugged demands of workhorse vehicles. It’s a logical choice for anyone who demands relentless reliability.
4T HD Clutch kit with flywheel
4T HD Clutch kit with Dual mass replacement flywheel
4T Ultimate with Patented* ER2 Groove Design has many features which make the product unique. It is comprised of a cover assembly, clutch disc and release bearing (Some kits also include a solid replacement flywheel or DMR). The cover assembly incorporates a premium corrosion resistant zinc plated surface finish, which exhibits excellent resistance to oxidation over a prolonged period. In addition, the clutch pressure plate incorporates 4T Ultimate's exclusive ER² design technology.
Spheroidal Graphite Castings: Constructed from advanced materials up to 300% stronger than standard castings, these components enhance strength and heat dispersion. Known as Anti-Burst castings, they ensure durability under extreme conditions, prolonging service life. Balanced Cover Assemblies: A two-stage balancing process ensures vibration-free operation and maximum efficiency, delivering consistent performance and durability in even the most demanding environments.
The kit's clutch disc has a unique flywheel side friction material. The Aramid friction material exhibits 50% less wear than a conventional clutch disc's friction material. This material also reduces the effects of clutch fade. Fade is the decline in the clutch system's ability to transmit torque as operating temperatures increase.
It also means that the clutch system is capable of transmitting up to 60% more torque than a standard Clutch Kit making it suitable for demanding conditions. This overall Torque Capacity increase has been achieved by higher Clamp Loads, increased Mean Effective Radius of the pressure plate, better cooling and higher coefficient of friction materials on the clutch disc.
The Patented* pressure plate with ER2 grooves are precision machined with CAD/CAM technology. The design enhances the performance in 2 ways. Firstly, it increases the torque capacity of the cover assembly and secondly it assists with cooling which in-turn enables the friction material to operate at lower temperatures and therefore at a higher coefficient of friction. Again, this enhances the torque capacity of the clutch.
The kit's clutch disc has a unique flywheel side friction material. The Aramid friction material exhibits 50% less wear than a conventional clutch disc's friction material. This material also reduces the effects of clutch fade. Fade is the decline in the clutch system's ability to transmit torque as operating temperatures increase.
It also means that the clutch system is capable of transmitting up to 60% more torque than a standard Clutch Kit making it suitable for demanding conditions. This overall Torque Capacity increase has been achieved by higher Clamp Loads, increased Mean Effective Radius of the pressure plate, better cooling and higher coefficient of friction materials on the clutch disc.
4TU Clutch kit with flywheel
4TU Clutch kit with Dual mass replacement flywheel
All these features are why the 4Terrain Ultimate is the ultimate clutch for any serious off-road vehicle.
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