Eibach ERS Linear Main Spring 1000.300.0400S

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 Linear Main Spring is an individually tested motorsport spring engineered for precise suspension tuning across a wide range of racing applications. As part of Eibach’s extensive line of precision-engineered race springs, this coilover spring helps optimize handling dynamics by delivering dependable, repeatable performance under demanding conditions.

Designed for use with 3.00-inch inside-diameter coilover systems, the Eibach ERS Linear Main Spring provides consistent spring behavior and maximum available travel with compact block heights. Its linear-rate design supports predictable suspension response, making it a practical choice for race teams, performance builders, and enthusiasts fine-tuning vehicle balance. The spring is built with Eibach’s motorsport-grade materials and is engineered to provide the durability required for off-road and circuit racing environments.

Key specifications include a 1,000 lb/in spring rate, a 4.00-inch free length, and a 3.00-inch inside diameter. Eibach part number 1000.300.0400S is supplied as one individual spring. The spring’s guaranteed consistency and individually tested construction help provide reliable setup changes between sessions and repeatable performance throughout competition use. Confirm suspension clearance, spring rate requirements, and vehicle application before installation.

What’s Included: One Eibach ERS Linear Main Spring. Vehicle-specific fitment data was not provided; professional installation and compatibility verification are recommended.

Features:

• Spring Rate: 1,000 lb/in linear spring rate supports precise suspension tuning and predictable handling response.
• Coilover Compatibility: Designed for coilover systems using a 3.00-inch inside diameter spring.
• Maximum Travel: Provides maximum suspension travel with compact block heights for optimized race-car packaging.
• Motorsport Durability: Eibach construction delivers dependable performance and long-term durability in demanding racing and off-road environments.

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