Eibach ERS Platinum Rear Racing Spring, 14 in. Length, 3.50 in. Outside Diameter, 145 lb./in. Rate

Eibach PLATINUM series race springs are engineered using our proprietary ultra-high tensile strength steel, for the lowest physical weights and maximum spring travel. More Travel / Deflection than Standard Racing Coil Springs

• The Eibach ER Platinum Springs will Maintain Their Dimensions and Rates to Incredibly Tight Tolerances, Lap after Lap, Race after Race
• Flat-Ground End Configuration with Parallel Tolerance to +/-1 Degree
• Ultra Light-Weight Using High Tensile Steel
• Block Resistant - No Loss in Spring Height!

The Eibach ERS Platinum rear racing spring is engineered for demanding motorsports applications where consistent performance, reduced weight, and maximum suspension travel are essential. Built from proprietary ultra-high-tensile-strength steel, this spring provides more travel and deflection than standard racing coil springs while maintaining dependable performance lap after lap.

Designed to preserve its dimensions and spring rate within extremely tight tolerances, the Eibach Platinum spring helps deliver predictable suspension behavior throughout repeated race sessions. Its flat-ground end configuration is manufactured with parallel tolerance to plus or minus 1 degree, supporting proper spring seating and consistent load distribution. The block-resistant construction helps prevent permanent loss of spring height, allowing the spring to maintain its intended setup over time.

This Eibach ERS spring is rated at 145 pounds per inch and features a 14-inch free length with a 3.50-inch outside diameter. The lightweight construction reduces unsprung weight without compromising durability, making it a practical choice for race teams and performance builders tuning rear suspension systems. This automotive racing component is not emissions-related and is intended for competition or performance applications. Professional installation and suspension setup are recommended to ensure compatibility with the vehicle, damper, and intended use.

Product Specifications and Technical Data

• Brand: Eibach
• Part Number: P1400.350.0145
• Series: ERS Platinum
• Application: Rear racing suspension spring
• Spring Rate: 145 lb./in.
• Free Length: 14 in.
• Outside Diameter: 3.50 in.
• End Configuration: Flat-ground ends with parallel tolerance to plus or minus 1 degree

What's Included

One Eibach ERS Platinum rear racing spring.

Fitment: Vehicle-specific fitment data was not provided. Confirm spring length, outside diameter, spring rate, suspension travel, and vehicle application before installation.

California Proposition 65: This product may expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Features:

• Ultra-high-tensile-strength steel: Delivers a lightweight design with excellent durability for demanding racing use.
• Increased suspension travel: Provides more travel and deflection than standard racing coil springs.
• Consistent spring rate: Maintains dimensions and rates within tight tolerances for predictable performance lap after lap.
• Block-resistant construction: Helps prevent permanent loss of spring height during repeated race conditions.

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