Spring Rubber 5in Dia. 1.75in Tall Blue

The Spring Rubber 5in Dia. 1.75in Tall Blue from RE SUSPENSION is a precision polyurethane isolator designed to manage spring vibration, noise, and deflection in suspension systems. As a mechanic, you'll recognize this as essential for vehicles running lowered setups, performance coilovers, or custom spring applications where OEM rubber mounts have deteriorated or prove inadequate. These isolators sit between your spring and mounting point, absorbing harshness that would otherwise transfer directly to the chassis and cabin.

Engineered from durable polyurethane with a distinctive blue stripe for easy identification, this 5-inch diameter, 1.75-inch tall rubber maintains consistent damping properties across temperature extremes and load cycles. The firm compound resists degradation from UV exposure, road salt, and thermal cycling—critical for longevity on track cars and daily-driven performance builds. At 0.6 lbs per unit, it's lightweight yet structurally sound, offering the ideal balance between compliance and support for aggressive suspension geometry without introducing unwanted lateral play.

Buyers upgrading air suspension systems, coilover kits, or replacing aged factory isolators benefit most from this product. Installation is straightforward—position between spring coil and mounting cup, then torque down to spec for your platform. Confirm your vehicle's spring seat diameter matches the 5-inch specification and verify the 1.75-inch height clearance within your suspension tower before ordering. Each isolator is sold individually, so purchase quantity matching your suspension's spring count (typically four for most cars, eight for dual-spring setups).