The SWIFT SPRINGS Z65-178-120 is a performance-focused coil-over spring engineered for suspension systems that require consistent support, responsive handling, and dependable spring-rate control. Designed for metric coil-over applications, this steel spring delivers a 12 kgf/mm spring rate to help manage suspension movement during acceleration, braking, cornering, and other demanding driving conditions. Its carefully produced coil profile supports predictable suspension behavior while maintaining the durability needed for repeated use on performance vehicles.
The spring features a 65 mm inside diameter and a 7-inch free length for compatibility with appropriate coil-over hardware. Its steel construction provides a strong foundation for high-load suspension applications, while the copper powder coat adds a durable protective finish and a distinctive appearance. The coating helps protect the spring surface during regular use and contributes to long-term resistance against common environmental exposure. Each spring is supplied individually, making it suitable for replacement, suspension tuning, or building a matched setup according to the vehicle and damper requirements.
Choose the SWIFT SPRINGS Z65-178-120 when precise spring selection and reliable performance are essential. A properly matched coil-over spring can help improve ride control, chassis balance, and driver confidence without compromising the adjustability associated with a performance suspension system. Before installation, verify the spring rate, inner diameter, free length, and coil-over compatibility with the specific shock body, perch, and suspension configuration. Professional installation and alignment are recommended after suspension components are replaced or tuned. This SWIFT SPRINGS coil-over spring combines durable steel construction, a consistent metric spring rate, and a protective copper powder coat in a purpose-built component for serious suspension applications.
Features:
- SWIFT SPRINGS Z65-178-120 part number for dependable product identification and replacement selection
- Coil-over spring design developed for metric performance suspension applications
- 12 kgf/mm spring rate supports controlled suspension movement and predictable handling
- 65 mm inside diameter fits compatible metric coil-over spring hardware
- 7-inch free length supports appropriate coil-over suspension configurations
- Durable steel construction provides strength for demanding suspension use
- Copper powder coat helps protect the spring surface and provides a clean finished appearance
- Supplied individually for replacement, tuning, or custom suspension setup requirements
