The Bilstein ZoneControl Shock Absorber and Coil Spring Assembly is the ultimate suspension upgrade you’ll ever need for your light truck or SUV. It is made using revolutionary ZoneControl® CR technology for position-sensitive damping. So whether for everyday driving or during large suspension inputs, this assembly is guaranteed to provide unparalleled ride comfort and maximum control.
The Bilstein ZoneControl shock and coil springs are designed with off-roaders in mind. Bilstein knows that going from a standard shock to a coilover assembly is the next step most off-roaders will take if they want maximum comfort on the rugged road. So, it rolled out the ZoneControl shocks with coil spring that’s dressed to impress. This assembly features a triple piston design with three compression zones for superior bottom-out control and two rebound zones for maximum stability. Plus, it uses an external reservoir designed to hold additional oil for improved heat dissipation and better performance over time. The Bilstein ZoneControl comes with an adjustable threaded spring seat that allows for easy spring preload adjustment and fine-tuning ride height. And it resists harsh off-road elements better than stocks since it’s made using aluminum components with zinc-plated shock bodies.