Cup Bump Rubber .500in ID x 3in Tall

The Cup Bump Rubber .500in ID x 3in Tall from RE Suspension is an essential elastomeric isolation component designed for custom suspension builds and vehicle modification projects. This bump stop replacement serves as a progressive rate cushion between chassis and suspension components, absorbing hard impacts and limiting suspension travel when the system reaches its maximum droop or compression stroke. Whether you're building a lifted truck, lowered performance car, or precision off-road rig, bump rubbers like this protect your suspension geometry and frame from damage during extreme articulation.

This cup-style bump rubber features a .500 inch inner diameter (ID) mounting interface, allowing secure installation over suspension rods, towers, or bump stops on most aftermarket suspension kits. The 3-inch tall design provides adequate compression travel before reaching solid contact, critical for maintaining ride quality during bump events without bottoming out harshly. RE Suspension specializes in high-performance suspension hardware, and their bump rubbers are engineered from durable elastomer compounds that resist UV degradation, ozone cracking, and repeated compression cycles typical of aggressive driving and off-road use. The compact footprint (2.6 x 2.45 x 5.2 inches) and light weight (0.31 lbs) make this component easy to install and integrate into existing suspension architectures without adding unsprung mass.

Mechanics and suspension builders favor RE Suspension bump rubbers for coilover systems, air suspension setups, and independent double-wishbone or multi-link platforms where ride control and impact management are priorities. Installation typically involves sliding the cup rubber over a suspension tower, rod, or OEM bump stop interface—confirming bore diameter compatibility before final assembly. This component is particularly valuable for customers lowering vehicles or upgrading to aftermarket coilovers, as it ensures the suspension can safely compress beyond factory limits without metal-to-metal contact that causes noise, harshness, and structural damage to frame or suspension arms.