Eibach ERS 18.00-Inch Coilover Spring, 3.00-Inch Inside Diameter, 650 lb/in Rate

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 Motorsport Spring is a precision-engineered coilover spring designed for race cars and high-performance suspension applications. Part number EIB1800.300.0650S features an 18.00-inch spring length, a 3.00-inch inside diameter, and a 650 lb/in spring rate for suspension tuning across a wide range of motorsport setups.

Developed as part of Eibach’s extensive race spring catalog, this individual spring helps optimize handling dynamics, suspension balance, and vehicle response. Its design provides maximum suspension travel while maintaining a compact block height, supporting consistent performance in demanding racing environments. Legendary Eibach off-road durability makes it suitable for applications where reliable operation and repeatable handling are essential.

Each spring is individually tested to help ensure high linearity and guaranteed consistency from one spring to the next. The Eibach ERS spring is intended for use with compatible 3.00-inch coilover hardware and suspension components. Verify spring length, inside diameter, rate, and application requirements before installation.

Product Specifications and Technical Data

• Brand: Eibach
• Part Number: EIB1800.300.0650S
• Product Type: Individual Motorsport Coilover Spring
• Spring Length: 18.00 inches
• Inside Diameter: 3.00 inches
• Spring Rate: 650 lb/in
• Application: Automotive racing and performance suspension
• Construction: Precision-engineered steel coil spring

What’s Included

One Eibach ERS individual motorsport coilover spring.

Features:

• 3.00-inch inside diameter is designed for compatible coilover suspension systems.
• 650 lb/in spring rate supports precise suspension tuning and handling optimization.
• 18.00-inch spring length provides extended suspension travel when properly matched to the application.
• Individually tested by Eibach for high linearity, repeatable performance, and consistent spring behavior.

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