Bump Stop Spring 4000lbs

The Bump Stop Spring 4000lbs by Hyperco is a critical suspension component designed for vehicles requiring controlled compression and rebound limiting. Built for enthusiasts and mechanics who demand precision suspension tuning, this bump stop spring protects chassis geometry and components from damage during extreme suspension travel. Whether you're running a lifted truck, performance-tuned sports car, or off-road rig, proper bump stop selection prevents bottoming-out and maintains predictable handling characteristics under demanding driving conditions.

This 4000-pound rate bump stop is engineered with Hyperco's proven spring technology, utilizing high-quality steel construction to withstand repeated compression cycles without permanent deformation. The compact 4.25 x 4.25 x 7.25-inch form factor integrates seamlessly into most modern suspension architectures, functioning as a secondary spring that engages at full compression. This progressive rate design prevents harsh metal-to-metal contact between the suspension frame and body, absorbing final compression energy that primary springs cannot handle alone, thereby extending component lifespan and improving ride quality on track or trail.

Technicians and serious modifiers rely on Hyperco bump stops when fine-tuning suspension packages for lowered vehicles, performance suspensions, or lifted applications. The 4000-pound rate suits mid-to-high spring rate systems common in coilover kits and modern performance suspensions. Installation requires proper positioning relative to your primary springs and dampers—consult your vehicle's suspension geometry and spring rates before selection. This component pairs effectively with upgraded shocks, sway bars, and chassis bracing to create a cohesive, predictable suspension platform.