SKU: 2000.375.0300S | UPC: 803050346049
Eibach ERS 20.00 in. Length x 3.75 in. ID Coil-Over Spring - 300 lb/in Rate
The Eibach ERS 20.00 in. Length x 3.75 in. ID Coil-Over Spring (MPN 2000.375.0300S) suits custom coil-over assemblies on race cars, drift builds, and performance street vehicles. Its 300 lb/in linear rate ensures responsive handling and stability under load. Built for endurance in demanding conditions, this spring maintains shape through repeated cycles.
Key Features
- Spring Rate: 300 lb/in provides firm response for track driving and cornering control without harshness on street surfaces
- Free Length: 20.00 inches fits extended coil-over setups for adjustable ride height and damping
- Inner Diameter: 3.75 inches slides easily over common shock bodies from QA1, Penske, and Ohlins
- Material: High-tensile chrome-silicon steel alloy resists fatigue for 100,000+ cycles of high-stress use
- Finish: Shot-peened, heat-treated, and epoxy powder coated to prevent rust and reduce friction
Product Notes
- Linear rate spring; pair with matched rates for front/rear balance
- Preset during manufacturing to eliminate initial sag
- Packaged in protective sleeve; 5.60 lbs net weight
Installation Notes
- Professional installation recommended.
- Adjust coil-over perch to achieve 20 in installed height; compress spring safely with tool
- Compatible with standard Eibach spring seats and hats; verify shock diameter under 3.75 in
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Coil-Over Applications | Race/Street/Drift |
Why Choose Eibach?
- Trusted by pro racing teams in Formula Drift and NASA
- Made in Germany with tight tolerances for consistent performance
- Proven durability in motorsport applications worldwide
Frequently Asked Questions
-
Q: What coil-over shocks fit this spring?
A: Designed for 3.75 in ID compatibility with most aftermarket coil-overs including Bilstein, Koni, and custom builds; confirm shock body OD before install -
Q: What material and finish does it have?
A: Chromium-silicon high-tensile steel, shot-peened for strength, with black epoxy powder coat for corrosion resistance in wet conditions -
Q: What warranty applies?
A: Eibach offers limited lifetime warranty against manufacturing defects when installed properly
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Cardboard box, 21 x 5 x 5 inches
- Weight: 5.60 lbs (6.20 lbs shipping)
Coilover Springs
Shop coilover springs, replacement coilover coils, ID60 and ID65 sport springs, ERS race springs, QA1 high-travel coilover springs, off-road lift coils, and Jeep coilover replacement springs from Eibach, Swift Springs, Hyperco, QA1, H&R, Vogtland, KW, Ground Control, Rock Krawler, RockJock, ARB / Old Man Emu, and other coilover-spring specialists. Find coilover springs for street/track sport-compact and European coilover platforms (ID60, ID62, ID65, ID70, 2.25 inch, 2.5 inch), race-application ERS springs, off-road lift coils for Wrangler JK/JL/Gladiator/JT/JKU, ARB / OME Toyota Land Cruiser and 4Runner replacement coils, RockJock lift springs, and QA1 high-travel muscle-car coilover coils. Coilover springs are the replaceable coils that wrap the shock body inside a coilover assembly. Swapping the spring changes ride height, spring rate, and the balance between comfort and cornering support without buying a new coilover. Filter by inner diameter (ID), free length, spring rate...
View Coilover Springs Products
Coilovers & Components
Coilovers and coilover components are stocked at Black Ops Auto Works for trucks, SUVs, muscle cars, and street performance builds. Shop complete coilover kits, coilover springs, lowering springs, shock boots, dampening adjustment extenders, and suspension hardware for Ford, Toyota, Chevrolet, Jeep, Dodge, and Porsche platforms. Every product is filterable by year, make, model, trim, and drivetrain so the correct coilover setup ships the first time. Black Ops Auto Works carries 2,259 coilover and component SKUs across street, off-road, and track categories. What This Collection Covers Coilovers combine a coil spring and a shock absorber into a single adjustable unit, giving control over ride height and, on many models, damping stiffness. This collection also includes the individual components used to service, upgrade, or protect an existing coilover system. Product Categories Complete coilover kits, individual coilover shocks, coilover springs, lowering springs, protective shock...
View Coilovers & Components Products
Eibach
Eibach suspension parts at Black Ops Auto Works include Pro-Kit and Sportline lowering springs, Pro-Truck lift kits and sport shocks, Anti-Roll-Kits and sway bars, Pro-Spacer wheel spacers, camber arm kits, and ERS coilover springs. Black Ops Auto Works carries 1,268 Eibach SKUs spanning Jeep and Dodge muscle car and SUV platforms, Toyota and Lexus off-road trucks and SUVs, Ram and Ford heavy duty trucks, and European sport models like BMW M2, M3, and M4. What This Collection Covers This collection brings together the full range of Eibach suspension products, including lowering springs, Pro-Truck lift kits, sport shocks, anti-roll kits, sway bars, adjustable end links, camber arm kits, wheel spacers, and ERS coilover springs. Product Types in This Collection Shoppers will find Pro-Kit and Special Edition lowering springs, SUV Pro-Kit springs, Pro-Truck lift stages and sport shocks, front and rear anti-roll bar kits, adjustable end links, alignment camber arm kits, and steering s...
View Eibach Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products


