{"product_id":"eibach-ers-18-00-in-length-x-3-75-in-id-silver-coil-over-spring-1","title":"Eibach ERS 18.00 in. Length x 3.75 in. ID Silver Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1800.375.0250S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050446183\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 18.00 in. Length x 3.75 in. ID Silver Coil-Over Spring - Universal Coilover Fit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS 18.00 in. Length x 3.75 in. ID Silver Coil-Over Spring delivers a precise 250 lb\/in rate for coilover suspension systems in racing and street performance applications. This universal spring fits most strut-style coilovers with 3.75\" ID perches, providing consistent damping control and handling response. Built for track demands, it maintains shape under high loads for reliable lap times.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e18.00\" Free Height:\u003c\/strong\u003e Allows full suspension travel in tall coilover setups for drag racing, autocross, or road course use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.75\" Inside Diameter:\u003c\/strong\u003e Matches standard coilover perches on strut shocks for secure, centered installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250 lb\/in Spring Rate:\u003c\/strong\u003e Balances stiffness and compliance for sharp cornering and stability at speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Powder Coat Finish:\u003c\/strong\u003e Identifies 200-299 lb\/in rates while resisting corrosion in harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Silicon Steel Construction:\u003c\/strong\u003e Shot-peened, stress-relieved, and nitrogen-infused for fatigue resistance and long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSold individually; order pairs for front or rear applications.\u003c\/li\u003e\n\u003cli\u003eInspect spring seats and rubbers for proper seating during assembly.\u003c\/li\u003e\n\u003cli\u003eStandard ground shipping; heavy item may incur freight surcharge on LTL.\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\u003eCompress spring with rated coilover compressor tool rated for 3.75\" ID.\u003c\/li\u003e\n\u003cli\u003eCompatible with most adjustable coilover perches; verify OD 4.64\" clearance.\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\u003eAll\u003c\/td\u003e\n\u003ctd\u003eCoilover Strut Systems\u003c\/td\u003e\n\u003ctd\u003e3.75\" ID Perch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 E46\/E92\u003c\/td\u003e\n\u003ctd\u003eCustom Coilover Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic EG\/EK\u003c\/td\u003e\n\u003ctd\u003eRace Coilovers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eNA\/NB\u003c\/td\u003e\n\u003ctd\u003eStrut Coilovers\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\u003eTrusted by factory race teams in Formula Drift, NASA, and SCCA.\u003c\/li\u003e\n\u003cli\u003eHigh-tensile chrome silicon steel exceeds SAE standards for consistency.\u003c\/li\u003e\n\u003cli\u003ePrecision wound on CNC machines in the USA for exact rate tolerance.\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 my coilover shock?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, designed for any coilover with 3.75\" ID perch and sufficient height clearance; check shock body diameter against 4.64\" OD.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and treatments are used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Premium chrome silicon high-tensile steel, 100% shot-peened for strength, heat-treated, and nitrogen gas infused to prevent sagging.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and wire diameter?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty against manufacturing defects; 0.890\" wire diameter for high load capacity.\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\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 Protective cardboard tube, 20\" x 6\" x 6\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":40535467786319,"sku":"EIB1800.375.0250S","price":160.0,"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_75-in_-id-silver-coil-over-spring-eibach_4b3e8bf9.jpg?v=1766041559","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-18-00-in-length-x-3-75-in-id-silver-coil-over-spring-1","provider":"Black Ops Auto Works","version":"1.0","type":"link"}