Eibach HELPER375 ERS Helper Spring 3.75 Inch ID 6.07 Inch Length

The Eibach HELPER375 is a precision-engineered helper spring designed to maintain proper spring position during full suspension droop conditions. This helper spring features a flat-wire design for minimal interference of main spring rate and travel to maintain spring position at full suspension droop. Helper springs are used to prevent the main spring from becoming loose in the spring seat when the suspension is unloaded or at full droop, and unlike tender springs, have very little spring rate with no effect on the suspension characteristics of the vehicle.

Key Specifications:

• Inside Diameter: 3.75 inches
• Free Length: 6.07 inches
• Spring Rate: 45 lbs/in (0.80 kg/mm)
• Block Height: 1.38 inches
• Travel: 4.69 inches
• Block Load: 253 lbs

Features and Benefits:

• Flat spring wire design for maximum travel and minimum block height
• Keeps main spring seated when suspension is unloaded
• Each spring individually tested for quality assurance
• Covers up to 6 inches (150mm) of spring-to-perch gap
• Part of the Eibach ERS (Eibach Race Spring) system for motorsport applications

The HELPER375 is ideal for coilover suspension systems in racing and high-performance applications where maintaining spring contact during suspension articulation is critical. At ride height when the vehicle is sitting on the ground, the helper spring is fully compressed, and when you launch the vehicle, the helper spring prevents the spring just below it from digging into the side of the shock. This spring is backed by Eibach's reputation for precision manufacturing and quality control.