C/O Spring - 3.50 ID X 10 500# Silver

The C/O Spring - 3.50 ID X 10 500# Silver is a high-performance coil spring engineered for serious vehicle builders and mechanics who demand precision load management in custom suspension systems. Whether you're designing a competition-grade shock absorber assembly, tuning a custom-built hydraulic damper, or engineering a specialized industrial clamping mechanism, this spring delivers the consistent load rate and durability required for demanding applications. Built to OEM specifications, this component is essential for anyone who understands that suspension geometry and spring rate directly impact ride quality, handling response, and long-term reliability.

This coil spring features a 3.50-inch inner diameter with a 500-pound load rate per inch of compression, delivering linear force delivery across its full 10-inch working length. The silver finish provides corrosion resistance while maintaining structural integrity under repeated cycling—critical for springs that must withstand thousands of compression and extension cycles without permanent set or material fatigue. The 500# rate makes this spring ideal for medium to heavy-duty applications where moderate spring stiffness is required without sacrificing ride comfort or introducing excessive preload stress on mounting hardware.

Mechanics and fabricators building custom suspension systems, performance shock assemblies, or precision clamping fixtures will find this spring's specifications compatible with standard 3.50-inch bore applications common in both automotive and industrial equipment. Its 6.75-pound weight and compact 5.5 x 5.3 x 10.7-inch footprint make integration straightforward into tight engine bays or assembly housings. Verify your application's inner diameter and required load rate before purchase to ensure optimal performance and maximum service life in your specific build configuration.