The 4WDHD Heavy-Duty System has been specifically designed to protect 4WDs/SUVs from rust, even when these vehicles are exposed to *FREQUENT use within highly corrosive environments (driving on salted roads, coastal roads and beaches).

*weekend use

This system may also benefit older 4WD vehicles that are suffering from minor existing rust problems. Despite their state-of-the-art technology and efficiency, however, CouplerTec systems are not a miracle cure. While they will significantly slow down the process of rust growth in a badly rusted vehicle, they will not restore its past glory. The more rust a vehicle has, the harder it is to stop it.

4WDHD System kit includes

The 4WDXHD Extreme Heavy-Duty System offers the ultimate in protection. It has been specifically designed to protect and dramatically reduce corrosion on 4WDs/SUVs which are exposed to *CONSTANT use within highly corrosive environments (driving on salted roads, coastal roads and beaches).

*daily use

This system may also benefit older 4WD vehicles that are suffering from minor existing rust problems. Despite their state-of-the-art technology and efficiency, however, CouplerTec systems are not a miracle cure. While they will significantly slow down the process of rust growth in a badly rusted vehicle, they will not restore its past glory. The more rust a vehicle has, the harder it is to stop it.