Eibach 1000.250.0350S 10in 2.5in ID 350lb Silver Coilover Spring

Vehicle Fitment

• Universal coilover spring application
• Fits coilover and shock setups designed for 2.50 in. inner diameter springs
• Compatible with applications requiring 10.00 in. free length and 350 lbs/in spring rate
• Do not assign vehicle-specific fitment without confirming spring seat diameter, installed height, travel, and shock compatibility

Features

• Eibach single coilover spring for custom suspension setups
• Linear spring rate design for predictable suspension response
• 2.50 in. inner diameter for compatible coilover and shock applications
• 10.00 in. free length for longer installed-height requirements
• 350 lbs/in spring rate for suspension tuning and load support
• Each spring is individually tested for consistency
• Engineered for high linearity and repeatable rate accuracy
• Designed for maximum travel with compact block height relative to class
• Silver finish on reviewed retailer listings for this S-suffix part number
• Sold individually as a single spring

Specifications

• Brand: Eibach
• Part Number: 1000.250.0350S
• Spring Type: Linear coilover spring
• Inner Diameter: 2.50 in. / 63.50 mm
• Free Length: 10.00 in. / 254.00 mm
• Spring Rate: 350 lbs/in
• Progressive Rate Spring: No
• Finish: Gray/Silver
• Quantity: 1x single spring
• UPC: 803050289360

Included Components

• 1x Eibach linear coilover spring

Product Description

The Eibach 1000.250.0350S is a single linear coilover spring built for custom suspension, race, and off-road applications that use a 2.50-inch inner diameter spring. With a 10.00-inch free length and 350 lbs/in spring rate, it is intended for setups that need predictable spring behavior, repeatable performance, and precise suspension tuning. This is a universal spring sold individually, not a vehicle-specific lowering or lift kit.

Cross-validated sources confirm the 2.50-inch I.D., 10.00-inch length, 350 lbs/in rate, and single-spring configuration. Eibach's official product page confirms the matching non-S ERS spec dimensions and rate for 1000.250.0350, while Summit Racing confirms this exact S-suffix part number as a 2.50-inch I.D., 10.00-inch, 350 lbs/in spring with gray/silver finish. Because this is a universal spring, vehicle-specific fitment should never be assumed. Lift or drop height cannot be stated because installed ride height depends entirely on vehicle corner weight, motion ratio, preload, and suspension configuration.