Eibach 0600.250.0400 ERS 400 lb Coilover Main Spring 2.50in ID x 6in

Vehicle Fitment

• Universal application - designed for use with compatible coilover suspension systems
• Not specific to any single vehicle make/model

Features

• ERS linear main coilover spring for performance suspension tuning
• 400 lbs/in spring rate for balanced support and handling
• Precision-formed spring steel construction for durability
• Red powder-coat finish resists corrosion
• Maximum travel with compact block height
• Individually tested for consistent rate performance
• Reduced unsprung mass for improved response
• Ideal for custom coilover builds, track or street performance

Specifications

• Part Number: 0600.250.0400
• Type: ERS linear main coilover spring
• Spring Rate: 400 lbs/in
• Inside Diameter: 2.50 in (63.5 mm)
• Free Length: 6.00 in (152 mm)
• Block Height: ~2.40 in (61 mm)
• Travel: ~3.60 in (91 mm)
• Load at Block Height: ~1,439 lbs

Included Components

• 1x Eibach ERS 400 lb/in main coilover spring

Product Description

The Eibach 0600.250.0400 ERS main coilover spring is a premium performance suspension component engineered for custom coilover systems where precise spring rate and reliable behavior are essential. With a **400 lbs per inch** spring rate and a **2.50 in inside diameter**, this spring delivers balanced support and responsive handling in performance street and track applications.

Constructed from precision-formed spring steel with a durable red powder coat, this coilover spring provides maximum travel while maintaining a compact block height, helping improve suspension responsiveness and stability. Its **6.00 in free length** and optimized design make it ideal for racing or performance suspension tuning, but because this part is universal (not specific to any vehicle), verify compatibility with your chosen coilover shock absorber and hardware before installation.