Eibach ERS 18.00-Inch Coilover Spring, 3.00-Inch Inside Diameter, 300 lb/in Rate – Part EIB1800.300.0300S

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 3.00" 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 18.00-Inch Coilover Spring is an individually tested motorsport spring engineered for precise suspension tuning across a wide range of racing applications. Designed with a 3.00-inch inside diameter, this Eibach spring provides reliable compatibility with coilover suspension systems that use the corresponding spring size and configuration.

Built for demanding track and off-road environments, the Eibach ERS spring combines high linearity with consistent performance throughout its operating range. Its design helps maximize suspension travel while maintaining a compact block height, allowing racers and suspension builders to fine-tune handling dynamics with confidence. The spring is manufactured to Eibach standards for durability, repeatable rates, and dependable performance.

With an 18.00-inch free length and a 300 lb/in spring rate, this individual motorsport spring is suited to custom suspension setups where precise load support and predictable response are essential. The Eibach part number EIB1800.300.0300S identifies this specific spring configuration. Always confirm spring rate, free length, inside diameter, and suspension application requirements before installation.

Key Product Specifications and Technical Data

• Brand: Eibach
• Product Line: ERS Individual Motorsport Spring
• Part Number: EIB1800.300.0300S
• Spring Type: Coilover racing spring
• Inside Diameter: 3.00 inches
• Free Length: 18.00 inches
• Spring Rate: 300 lb/in
• Quantity: One individual spring

What's Included

• One Eibach ERS coilover spring

Fitment: Universal motorsport application. Vehicle-specific fitment data was not provided; verify compatibility with the coilover body, spring seats, required travel, and suspension setup before use.

Features:

• 3.00-inch inside diameter supports compatible coilover suspension systems
• 300 lb/in spring rate enables precise suspension tuning for racing applications
• 18.00-inch free length helps provide extended suspension travel when properly matched to the setup
• Individually tested by Eibach for consistent rate, linear performance, and dependable 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: t
Units Per Sku: 1