HKS 82004-AK002 19.8N/mm Helper Spring Set for Hipermax Coilovers

Vehicle Fitment

• Universal application for HKS Hipermax coilovers using compatible main spring and perch configuration

Fitment Notes

• Not vehicle-specific - designed for HKS Hipermax series coilovers
• Used between the main coil spring and lower perch to maintain spring tension at full droop
• Installation requires disassembly of coilover assembly and proper preload setup

Features

• Maintains coil spring position under full suspension droop
• Prevents spring dislocation and reduces noise on rebound
• Improves ride quality on aggressive or lowered suspension setups
• Made from high-quality spring steel for durability
• 19.8N/mm spring rate calibrated specifically for helper function
• Engineered for use with HKS Hipermax systems only
• Compact and lightweight design integrates into existing coilover stack
• Provides consistent preload without affecting ride height

Specifications

• Spring Rate: 19.8N/mm
• Fitment: Universal for HKS Hipermax coilovers
• Material: High-strength spring steel
• Weight: Approx. 4.4 lbs total
• Dimensions (per spring): ~13" length x 6.5" width x 3" height (packaged)
• Warranty: 1-year limited via HKS authorized dealers

Included Components

• 2x Helper Springs (19.8N/mm)
• 1x Installation Guide
• 1x HKS Retail Packaging
• 1x Warranty Card

Product Description

The HKS 82004-AK002 Helper Spring Set is engineered for HKS Hipermax coilover systems, providing critical support during full droop to maintain coil spring preload and prevent suspension noise or instability. These helper springs offer a 19.8N/mm spring rate specifically designed for maintaining consistent stack height without altering ride quality or height.

Ideal for track, lowered, or aggressive setups, these springs improve stability and reliability by preventing spring displacement. Constructed from premium spring steel and built to exacting HKS standards, the 82004-AK002 helper springs are a simple but essential upgrade for performance drivers using Hipermax coilovers. This kit includes two helper springs and installation documentation, and is backed by HKS's one-year limited warranty.