Spring Coilover 3in OD 12in Tall

The Spring Coilover 3in OD 12in Tall (MPN: OH12-225) is a precision-engineered coil spring designed for high-performance suspension tuning and custom vehicle builds. Built with a 3-inch outer diameter and 225 lb/in spring rate, this coilover spring delivers the responsive chassis control and ride height adjustability that performance enthusiasts demand when upgrading from factory suspension geometry.

The 225 lb/in spring rate strikes an engineered balance between ride compliance and body control, making it suitable for street-performance applications where aggressive cornering loads must be managed without sacrificing everyday drivability. At 12 inches in height, this coilover spring accommodates mid-to-high compression damper bodies typical of modern coilover kits. The blue epoxy coating provides corrosion resistance during extended storage and active suspension work, while the steel construction ensures durability across repeated compression and extension cycles. Weighing 5.05 lbs per unit, this spring integrates seamlessly into dual-spring or single-spring setups depending on your suspension architecture.

This spring is specified for custom suspension builders, track-focused platform owners, and off-road enthusiasts upgrading independent front or rear suspension systems. Spring rate selection is critical to vehicle behavior—heavier rates require stiffer dampers to prevent harshness, while lighter rates improve compliance on rougher terrain. The 225 lb/in specification targets mid-weight vehicles (2,500–3,500 lbs per corner) where this rate delivers predictable load transfer without bottoming on bumps or overextending at ride height. Verify compatibility with your damper body dimensions and overall suspension geometry before purchase, as coilover spring selection depends on target ride height, compression length, and mounting configuration.