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SKU: 1800.300.0600S | UPC: 803050288233
Eibach ERS 18.00 in. Length x 3.00 in. ID Coil-Over Spring - 600 lb/in Rate
This Eibach ERS coil-over spring measures 18.00 inches in free length with a 3.00 inch inside diameter and 600 lb/in spring rate, designed for custom coilover strut assemblies. It suits performance vehicles in drag racing, circle track, road racing, and off-road applications requiring firm suspension control. Engineered for high-load durability, it delivers consistent response under extreme conditions.
Key Features
- High-Tensile Chrome Silicon Steel: Provides resistance to fatigue for extended service life in racing environments.
- Shot-Peened Construction: Increases surface strength and prevents stress cracks during repeated high-impact use.
- Preset and Scramblized Ends: Ensures square, stable seating on perches for accurate installation and load distribution.
- Silver Powder Coat Finish: Resists corrosion and maintains appearance in harsh track conditions.
- Precise 600 lb/in Rate: Delivers firm damping control with 18 in length supporting up to 1,980 lbs max load and 13.81 in max travel.
Product Notes
- Verify shock absorber stroke length matches spring travel to avoid bottoming out.
- Inspect regularly for wear in competitive use; replace if rate changes exceed 5%.
- Ships in protective cardboard sleeve to prevent damage.
Installation Notes
- Professional installation recommended.
- Requires compatible 3.00 in ID coilover perches and retainers; not for use without proper strut housing.
- Torque hardware to manufacturer specs; use thread locker on adjuster threads.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Universal | Coilover Systems | Drag Racing, Circle Track, Road Race, Off-Road |
Why Choose Eibach?
- Motorsport-proven in professional series like NHRA and SCCA.
- Manufactured in ISO-certified facilities with tight tolerances.
- Backed by engineering focused on racing demands for reliability.
Frequently Asked Questions
-
Q: Does this spring fit specific coilover brands?
A: Universal design works with most aftermarket coilovers accepting 3.00 in ID springs, including QA1, Bilstein, and Fox; confirm perch compatibility. -
Q: What material is used and wire diameter?
A: High-tensile chrome silicon steel with 0.827 in wire diameter, 3.37 in mean diameter, and 8.10 active coils for precise response. -
Q: What is the warranty and installation tip?
A: 1-year manufacturer defect warranty; pair with matched rate springs front/rear and align after install.
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Cardboard sleeve, approx. 19 x 5 x 5 in box
- Weight: 5.31 lbs
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