Spring Rubber 5in Dia. 80A Yellow

The Spring Rubber 5in Dia. 80A Yellow is a critical suspension component designed for custom vehicle builds and performance modifications where vibration isolation and load management are essential. As a mechanic working on lifted trucks, lowered sports cars, and fabricated chassis projects, you'll recognize this as a replacement or upgrade element for coil spring assemblies, motor mounts, or suspension bushings. These elastomeric isolators absorb road shock, reduce NVH (noise, vibration, harshness) transmitted to the frame, and extend the service life of drivetrain components by decoupling unwanted frequency transmission.

At 80A durometer on the Shore A hardness scale, this yellow rubber compound strikes a balance between compliance and load-bearing capacity—softer than 90A compounds for improved isolation, yet rigid enough to maintain geometry under sustained force. The 5-inch diameter and 1.5-inch thickness (inferred from MPN RE-SR500-1500-80) provide substantial contact area for mounting applications, while the yellow color standard indicates a specialized formulation, often engineered for temperature resistance and UV stability on vehicles exposed to direct sunlight or engine bay heat. The 1.19 lb weight confirms this is a precision elastomer rather than a structural component, making it ideal for fine-tuning suspension response or refreshing worn mounts in existing systems.

This spring rubber is most beneficial for builders upgrading OEM suspension systems, race teams dialing in dampening characteristics, or technicians rebuilding vintage or modified vehicles where factory isolators are no longer available. Installation typically involves bolt-down or press-fit mounting between a spring and frame perch, or as part of a custom bushing stack. Verify your application's load rating and mounting diameter before purchase; the 5-inch specification must match your existing hardware or custom fabrication plan to ensure proper fitment and performance.