Eibach ERS 18.00-Inch Coilover Spring, 3.75-Inch Inside Diameter, 250 lb/in Rate – Part EIB1800.375.0250S

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 race vehicles that require precise suspension tuning and dependable performance. This silver coilover spring features an 18.00-inch free length, a 3.75-inch inside diameter, and a 250 lb/in spring rate, making it a practical choice for optimizing handling balance, ride control, and suspension response across a wide range of racing applications.

Designed as part of Eibach’s extensive race spring catalog, the ERS spring delivers maximum suspension travel while maintaining a compact block height. Its highly linear rate characteristics provide predictable behavior throughout the operating range, helping drivers and suspension tuners make consistent setup adjustments. Every spring is individually tested to support dependable quality and rate consistency.

Built for demanding motorsport use, this Eibach spring combines off-road durability with precision manufacturing. It is intended for compatible coilover and racing suspension systems using a 3.75-inch inside diameter spring. Verify the required spring length, rate, mounting hardware, and vehicle application before installation. This is an individual replacement or tuning spring, not a complete coilover assembly.

Product Specifications and Technical Data

• Brand: Eibach
• Part Number: EIB1800.375.0250S
• Product Type: Individual motorsport coilover spring
• Free Length: 18.00 inches
• Inside Diameter: 3.75 inches
• Spring Rate: 250 pounds per inch
• Finish: Silver
• Application: Racing and compatible coilover suspension systems

What's Included

One Eibach ERS individual coilover spring. Coilover hardware, spring seats, adjusters, and installation components are not included unless specified by the suspension system manufacturer.

Features:

• 3.75-inch inside diameter supports use with compatible Eibach and motorsport coilover systems.
• 250 lb/in spring rate helps tune handling balance, suspension control, and vehicle response.
• 18.00-inch spring length provides a broad range of setup flexibility for compatible race applications.
• Precision-tested Eibach construction delivers linear performance, consistent spring rates, and durable motorsport service.

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: t
Units Per Sku: 1
Clearance Item: t