Coilover Spring 14in x 3.0in x 125lb

The Coilover Spring 14in x 3.0in x 125lb from SWIFT SPRINGS is an essential upgrade component for builders and enthusiasts pursuing aggressive suspension geometry and ride-height adjustment. This independent spring unit allows mechanics and fabricators to dial in precise spring rates while maintaining structural integrity under modified vehicle loads. Whether you're engineering a track-focused platform, lowering a street machine, or building a competition-grade suspension system, this coilover spring delivers the tuning flexibility that factory setups cannot match.

SWIFT SPRINGS engineered this 125-pound rate spring with a 14-inch free length and 3.0-inch outer diameter, dimensions that integrate seamlessly into most aftermarket coilover kits and custom suspension assemblies. The 125lb spring rate strikes a balance between responsive handling and ride compliance—stiff enough to resist excessive body roll during cornering yet compliant enough for street manners on uneven surfaces. The compressed design (4.8 x 4.7-inch footprint) minimizes packaging constraints, making it ideal for tight engine bays or custom fabrication scenarios where space is limited. At 4.4 pounds, this spring maintains a weight-conscious profile critical for performance applications where unsprung mass directly impacts acceleration, braking, and suspension response times.

This coilover spring suits builders using SWIFT SPRINGS platforms, custom multi-link conversions, and independent double-wishbone setups across domestic and import chassis. Verify bore diameter, seating specifications, and spring perch compatibility with your damper body or fabricated tower assembly before purchase; coilover springs demand precision alignment to avoid binding and premature failure. Pair with appropriately valved dampers to optimize compression and rebound tuning for your target application—125lb springs work effectively across light-to-moderate weight vehicles and offer excellent adjustability for both street and competition use. Installation requires proper spring compressors and careful attention to preload settings to achieve desired ride height and suspension geometry targets.