Eibach ERS 3.75-Inch ID Coilover Spring, 400 lb/in Rate, 4-Inch Length

Renowned for our extensive catalog of over 1,500 precision engineered race springs. Eibach race springs offer unparalled customization and performance optimization across a wide spectrum of racing applications. From shocks to pull-bars we offer a wide range of springs solutions to fine tune the handling dynamics of your race car. Individual Motorsport Spring

• Eibach 3.75" Inside Diameter Coilover Springs Available in a Full Range of Rates and Lengths
• Maximum Travel in Combination with Smallest Block Heights
• Legendary Eibach Off-Road Durability and Performance
• Highest Linearity and Guaranteed Consistency
• Each Spring Individually Tested

The Eibach ERS Individual Motorsport Spring is engineered for racing applications that demand precise suspension tuning and dependable performance. This coilover spring features a 3.75-inch inside diameter and a 400 lb/in spring rate, providing a consistent foundation for optimizing vehicle handling, balance, and suspension response.

Designed for motorsport coilover systems, the Eibach ERS spring combines maximum suspension travel with a compact block height. Its linear performance characteristics help deliver predictable handling throughout the suspension’s operating range, while Eibach’s proven off-road durability supports demanding race environments. Each spring is individually tested to help ensure dependable consistency from one component to the next.

Key Product Specifications & Technical Data

• Brand: Eibach
• Part Number: EIB1600.375.0400S
• Product Type: Individual motorsport coilover spring
• Inside Diameter: 3.75 inches
• Spring Rate: 400 lb/in
• Spring Length: 4 inches
• Application: Racing and performance coilover suspension systems
• Construction: Precision-engineered spring with linear performance characteristics

What’s Included

• One Eibach ERS motorsport coilover spring

Vehicle-specific fitment information should be confirmed before installation. Proper spring selection depends on the coilover system, vehicle weight, suspension geometry, desired ride height, and racing setup. Professional installation and suspension tuning are recommended.

Features:

• 3.75-inch inside diameter supports compatibility with a wide range of motorsport coilover systems.
• 400 lb/in spring rate provides a precise tuning option for race vehicle suspension setups.
• Compact 4-inch spring length helps maximize suspension travel while maintaining a small block height.
• Individually tested by Eibach for consistent performance, linearity, and dependable racing durability.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1
Clearance Item: t