Eibach 1000.250.0400S Off-Road Coilover Spring 400 lb 2.50in ID x 10in

Vehicle Fitment

• Universal application - designed for use with compatible coilover suspension systems
• Engineered for off-road, rally, and performance suspension builds
• Not specific to any particular vehicle make/model

Features

• ERS off-road coilover spring optimized for rugged performance and travel
• 400 lbs/in spring rate for balanced support with enhanced compliance
• Precision-formed high-tensile spring steel for strength and durability
• Silver powder-coat finish for corrosion and abrasion resistance
• Extended free length allows generous travel and articulation
• Individually tested for linear rate accuracy and quality
• Lightweight design reduces unsprung mass for improved suspension response
• Ideal for off-road, rally, desert, and custom coilover suspension builds

Specifications

• Part Number: 1000.250.0400S
• Type: ERS off-road coilover spring
• Spring Rate: 400 lbs/in
• Inside Diameter: 2.50 in (63.5 mm)
• Free Length: 10.00 in (254 mm)
• Block Height: ~4.50 in
• Travel: ~6.50 in
• Load at Block Height: ~1,800 lbs
• Weight: ~3.70 lbs

Included Components

• 1x Eibach 1000.250.0400S coilover spring

Product Description

The Eibach 1000.250.0400S is an off-road ERS coilover spring engineered for suspension systems requiring balanced support and long travel. With a **400 lbs per inch** spring rate, **2.50 in inside diameter**, and **10.00 in free length**, this spring delivers compliant support with excellent articulation - well suited for off-road and performance suspension builds such as rally, desert, and custom-tuned setups. Its spring rate strikes a balance between comfort and load capacity, making it versatile for a range of rough-terrain uses.

Constructed from precision-formed high-tensile spring steel and finished in a silver powder coat for enhanced resistance to corrosion and abrasion, the 1000.250.0400S offers durability in demanding environments. Its generous free length, optimized block height, and extensive travel provide responsive suspension behavior and improved wheel control. Because this part is universal - not tied to a specific vehicle - confirm compatibility with your chosen coilover shocks and hardware prior to installation for best results in your build.