{"product_id":"eibach-ers-18-00-in-length-x-3-00-in-id-coil-over-spring-2","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\"\u003e1800.300.0700S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050288530\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 18.00 in. Length x 3.00 in. ID Coil-Over Spring 700 lb\/in - Universal Fit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS 18.00 in. Length x 3.00 in. ID Coil-Over Spring (part 1800.300.0700S) delivers a 700 lb\/in rate for coilover suspension systems in drag racing, road course, circle track, and custom street performance builds. This spring fits standard 3-inch ID coilover struts and shocks on a broad range of high-performance vehicles. Its firm rate supports quick response, stable cornering, and maintained tire contact under load.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 18.00 inches provides extended travel capacity for tall coilover setups in racing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 3.00 inches matches common coilover perch sizes for direct compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 700 lb\/in generates stiff damping to control chassis motion and improve lap times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chrome-silicon high-tensile steel alloy resists fatigue for repeated high-stress cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess:\u003c\/strong\u003e Shot-peened, preset, squared\/ground ends, and dual-phase epoxy silver coating ensure rate retention and rust protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor competition use; pair with matching rate springs front\/rear for balance.\u003c\/li\u003e\n\u003cli\u003eStore in dry conditions; avoid chemical cleaners to preserve coating.\u003c\/li\u003e\n\u003cli\u003eLTL shipping not required; handles like standard auto parts.\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\u003eConfirm coilover perch fits 3.00 in. ID exactly; use spring rubbers or isolators.\u003c\/li\u003e\n\u003cli\u003eCompatible with Eibach Pro-Truck, Pro-Street coilovers and most adjustable strut cartridges.\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 Suspension\u003c\/td\u003e\n\u003ctd\u003eDrag\/Road\/Track\/Street\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\u003eUsed by factory teams in NHRA, NASA, and SCCA racing series.\u003c\/li\u003e\n\u003cli\u003eCNC-controlled winding for exact rate and dimension tolerances.\u003c\/li\u003e\n\u003cli\u003eTested to 1 million compression cycles for track 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 fit my coilover kit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Fits any coilover strut or shock with 3.00 in. ID perch and 18+ in. height clearance, including QA1, Bilstein, Fox, and King applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What steel is used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Premium chrome-silicon alloy with tensile strength over 220,000 psi for heat resistance up to 500°F.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e One-year limited warranty on manufacturing defects; lifetime protection against sagging from normal competition use.\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 UPS 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 plastic sleeve in fiberboard box, 19 x 4 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.3 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":40729630408783,"sku":"EIB1800.300.0700S","price":103.7,"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_e82a3025.jpg?v=1766041918","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-18-00-in-length-x-3-00-in-id-coil-over-spring-2","provider":"Black Ops Auto Works","version":"1.0","type":"link"}