Eibach Spacer Coupling 2.25in ID – Precision Suspension Spacer for Coil Spring Systems

When suspension tuning comes down to the details, the smallest components make the biggest difference. The Eibach Spacer Coupling 2.25in ID (Part #SPACER225) is engineered to provide perfect spring alignment and preload consistency in dual-rate or stacked coilover systems. Designed to fit 2.25-inch inside-diameter coil springs, this precision-machined coupling ensures your suspension operates smoothly, predictably, and without deflection — corner after corner, mile after mile.

Built for racers, fabricators, and performance enthusiasts, this coupling represents Eibach’s commitment to exact tolerances and world-class quality. Whether you’re chasing podiums or refining your street build, this hardware delivers the precision and reliability your suspension demands.

Built for Precision and Durability

Each Eibach spring coupler is CNC-machined from high-grade billet aluminum to maintain perfect concentricity between coil springs. The lightweight design minimizes unsprung mass while providing structural strength that resists deformation under load. A sleek black anodized finish protects the surface from corrosion and abrasion, ensuring longevity even in high-temperature or high-vibration environments.

Specifications:

• Material: Billet Aluminum

• Finish: Black Anodized for Corrosion Resistance

• Inside Diameter: 2.25 in (57 mm)

• Configuration: Single Coupler / Spacer

• Use: Coilover & Dual-Rate Spring Systems

This component eliminates coil misalignment, prevents unwanted bowing, and maintains a perfectly uniform load path — improving both consistency and overall suspension feel.

Optimized for Coilover and Dual-Rate Applications

The Eibach 2.25in Spacer Coupling is designed to connect the main and tender (or helper) springs in a dual-rate setup. It keeps the spring stack precisely centered on the shock body, enabling a smooth transition between rates without chatter or misalignment.

Ideal Applications:

• Off-Road Racing / Pre-Runners: Maintains spring alignment under aggressive bump and rebound cycles.

• UTV / SXS Performance: Delivers consistent preload and travel control through demanding terrain.

• Track & Street Builds: Provides repeatable corner balance and damping response for precision tuning.

• Custom Fabrication Projects: Offers professional-grade fitment for coilover conversions or custom suspension assemblies.

By maintaining exact spring geometry, this coupler ensures predictable handling, reduced friction, and improved shock performance under load.

Lightweight Strength, Professional Fitment

Eibach’s precision machining and anodizing process guarantee long-term durability in racing or daily-driven environments. The coupling’s engineered stiffness resists distortion even under high-rate springs, maintaining true preload values and maximizing spring lifespan.

• Prevents side loading and coil deflection

• Maintains preload accuracy for consistent ride height

• Reduces friction for smoother operation

• Designed to withstand race-level forces and heat cycles

Every part is manufactured under strict Eibach quality standards — the same processes used in their championship-winning suspension systems.

Eibach Performance, Proven Worldwide

Eibach components are used by championship teams in motorsport disciplines from Formula 1 to off-road endurance racing. Each piece, including the SPACER225, is engineered with the same dedication to performance, precision, and reliability that defines the Eibach brand.

Why builders and tuners choose Eibach:

• Manufactured under ISO/QS-certified processes

• Integrates seamlessly with Eibach ERS springs

• Precision-fit design ensures zero slop or movement

• Trusted globally in both professional and OEM performance applications

Eibach hardware isn’t just built to fit — it’s built to perform, every time.

Technical Overview

Application Examples

• Desert Trucks / Race Buggies: Maintains coil stack stability under heavy load transitions.

• UTV Suspension Builds: Provides precision preload control for adjustable coilovers.

• Road Racing / Track Cars: Ensures smooth rate transitions and consistent damping.

• Custom Fabrication Projects: Perfect fit for builders developing high-performance coilover assemblies.

The Foundation of Consistent Suspension Performance

A suspension system is only as strong as its smallest parts. The Eibach 2.25in ID Spacer Coupling provides the essential alignment and preload control needed to extract maximum performance from your springs and dampers. Whether you’re tuning for desert terrain, autocross precision, or daily-driven stability, Eibach hardware delivers the reliability and control your build deserves.

This coupling might be small — but its impact on suspension performance is massive.

Why Buy from Fenix Motorsports

At Fenix Motorsports, we live the same performance lifestyle as our customers. Every product we offer has been tested, trusted, and verified under real-world conditions — from Arizona desert trails to track-day tarmac. We partner with proven brands like Eibach to deliver components that meet our own fabrication and racing standards.

When you buy from Fenix, you get:

• Genuine, race-proven Eibach components

• Expert, enthusiast-backed technical support

• Fast, secure U.S. shipping and easy returns

• Access to elite brands like Eibach, Baja Designs, Rigid Industries, FOX, KING, and NRG Innovations

Fenix Motorsports isn’t just a parts supplier — it’s a community built on performance, integrity, and real-world results.

Why Fenix? Because performance isn’t optional — it’s required