Bilstein Bump Rubber Cup

The RE SUSPENSION Bilstein Bump Rubber Cup is a precision suspension component designed for vehicles running lowered setups, coilover systems, or aggressive ride height modifications. This bump stop cup absorbs compression loads at the limit of suspension travel, preventing metal-to-metal contact between the shock body and frame—a critical safety function for modified vehicles. Whether you're building a track car, daily driver on coilovers, or upgrading a performance suspension system, this universal bump stop cup protects your suspension geometry and extends component lifespan.

Constructed from polished aluminum, the Bilstein Bump Rubber Cup features a 1-inch cup diameter with a 14mm shaft bore, making it compatible with standard suspension designs across a wide range of applications. The aluminum construction provides lightweight durability while the polished finish resists corrosion and maintains a clean appearance under the vehicle. The cup's engineered geometry dissipates impact energy smoothly, progressively limiting suspension compression to protect dampers, springs, and chassis components from damage during aggressive cornering, braking events, or full compression scenarios.

This bump rubber cup serves mechanics and enthusiasts upgrading suspension on lowered vehicles, track-focused builds, or coilover installations where factory bump stops no longer provide adequate clearance or protection. Installation requires basic suspension knowledge—the cup slides onto the damper shaft and seats against the shock body, creating a mechanical stop that maintains proper suspension geometry limits. The universal 14mm shaft design ensures fitment across most aftermarket and OEM suspension platforms, making this an essential wear item for any serious suspension modification project.