Spring ID Adapter 60mm to 2.5in

The Spring ID Adapter 60mm to 2.5in from EIBACH is an essential component for builders and enthusiasts working with coilover suspension systems or aftermarket spring setups. This adapter bridges the gap between metric spring dimensions and standard imperial mounting hardware, allowing seamless integration of quality coils into platforms that may have been originally designed for different spring seat specifications. Whether you're upgrading to a performance suspension kit or modifying an existing setup, this adapter eliminates the guesswork and fabrication headaches that come with mismatched spring and perch sizes.

Engineered by EIBACH, a leader in suspension innovation for over 60 years, this adapter converts a 60mm inner diameter spring to a 2.5-inch (63.5mm) mounting interface with precision engineering that ensures zero wobble or lateral play during suspension cycles. The compact design—measuring just 4 inches in length and weighing a mere 0.06 lbs—minimizes unsprung mass while maintaining structural rigidity. This straightforward conversion allows you to use premium quality springs across different suspension architectures without expensive custom fabrication or unsafe workarounds, maintaining the engineered characteristics of your coilover or spring system.

This adapter is ideal for suspension technicians, DIY modifiers, and performance shops tackling complex coilover conversions on late-model vehicles, vintage restorations, or platform swaps where spring dimensions don't align perfectly with available mounting hardware. Installation is straightforward—simply position the adapter between your spring and perch, ensuring the 60mm ID spring seats fully. Compatible with any coilover or suspension kit using standard spring components, this adapter delivers the kind of practical engineering solution that separates professional installs from improvised setups.