{"product_id":"eibach-ers-18-00-in-length-x-3-00-in-id-coil-over-spring-6","title":"Eibach ERS 18.00 in. Length x 3.00 in. ID Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1800.300.0600S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050288233\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 18.00 in. Length x 3.00 in. ID Coil-Over Spring - 600 lb\/in Rate\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Tensile Chrome Silicon Steel:\u003c\/strong\u003e Provides resistance to fatigue for extended service life in racing environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShot-Peened Construction:\u003c\/strong\u003e Increases surface strength and prevents stress cracks during repeated high-impact use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreset and Scramblized Ends:\u003c\/strong\u003e Ensures square, stable seating on perches for accurate installation and load distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Powder Coat Finish:\u003c\/strong\u003e Resists corrosion and maintains appearance in harsh track conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise 600 lb\/in Rate:\u003c\/strong\u003e Delivers firm damping control with 18 in length supporting up to 1,980 lbs max load and 13.81 in max travel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVerify shock absorber stroke length matches spring travel to avoid bottoming out.\u003c\/li\u003e\n\u003cli\u003eInspect regularly for wear in competitive use; replace if rate changes exceed 5%.\u003c\/li\u003e\n\u003cli\u003eShips in protective cardboard sleeve to prevent damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eRequires compatible 3.00 in ID coilover perches and retainers; not for use without proper strut housing.\u003c\/li\u003e\n\u003cli\u003eTorque hardware to manufacturer specs; use thread locker on adjuster threads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eCoilover Systems\u003c\/td\u003e\n\u003ctd\u003eDrag Racing, Circle Track, Road Race, Off-Road\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Eibach?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMotorsport-proven in professional series like NHRA and SCCA.\u003c\/li\u003e\n\u003cli\u003eManufactured in ISO-certified facilities with tight tolerances.\u003c\/li\u003e\n\u003cli\u003eBacked by engineering focused on racing demands for reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this spring fit specific coilover brands?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Universal design works with most aftermarket coilovers accepting 3.00 in ID springs, including QA1, Bilstein, and Fox; confirm perch compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used and wire diameter?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e High-tensile chrome silicon steel with 0.827 in wire diameter, 3.37 in mean diameter, and 8.10 active coils for precise response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and installation tip?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 1-year manufacturer defect warranty; pair with matched rate springs front\/rear and align after install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Standard ground shipping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Cardboard sleeve, approx. 19 x 5 x 5 in box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.31 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":39715179364431,"sku":"EIB1800.300.0600S","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/eibach-ers-18_00-in_-length-x-3_00-in_-id-coil-over-spring-eibach_e4f546a8.jpg?v=1766039965","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-18-00-in-length-x-3-00-in-id-coil-over-spring-6","provider":"Black Ops Auto Works","version":"1.0","type":"link"}