SWIFT SPRINGS Z65-178-140 Swift Springs Coil-Over Spring Z65-178-140, 14 kgf/mm Spring Rate

Upgrade your suspension setup with the Swift Springs Z65-178-140 coil-over spring, engineered for demanding performance applications that require consistent spring behavior and dependable ride control. Designed for metric coil-over systems, this spring delivers a firm 14 kgf/mm spring rate to help support precise handling, improved chassis response, and predictable suspension performance during spirited driving, track use, and competition conditions. Each spring is manufactured from quality steel for strength and durability under repeated compression cycles.

Finished with a copper powder coat, the Swift Springs coil-over spring provides a distinctive appearance while helping protect the steel surface during regular use. The coating supports long-term durability in a variety of suspension environments, while the carefully engineered construction helps maintain reliable performance across demanding operating conditions. This spring is intended for applications where accurate rate selection and consistent suspension tuning are essential.

Use the Swift Springs Z65-178-140 as part of a properly matched coil-over suspension package. Its high spring rate is suited to performance-oriented setups requiring increased support and reduced body movement, but suspension compatibility should always be confirmed before installation. Verify the spring specifications, adjuster and perch compatibility, available travel, and vehicle application with your suspension manufacturer or qualified installer. Supplied individually, this Swift Springs replacement or upgrade spring is a practical choice for builders, tuners, and motorsport professionals seeking repeatable suspension performance from a recognized performance spring manufacturer.

Features:

• Brand: Swift Springs

• Part Number: Z65-178-140

• Application: Metric coil-over suspension systems

• Spring Rate: 14 kgf/mm for firm, performance-focused suspension control

• Material: Durable steel construction

• Finish: Copper powder coat for added surface protection

• Quantity: Sold individually