{"product_id":"eibach-ers-4-00-in-length-x-3-00-in-id-coil-over-spring","title":"Eibach ERS 4.00 in. Length x 3.00 in. ID Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e0400.300.0550S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050388209\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eUniversal Eibach ERS 4.00 in. Length x 3.00 in. ID 550 lb\/in Coil-Over Spring\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS 4.00 in. Length x 3.00 in. ID Coil-Over Spring (part 0400.300.0550S) provides a 550 lb\/in rate for consistent performance in motorsports. Designed for 3-inch ID coil-over shocks on drag cars, road racers, oval track vehicles, and custom setups. Delivers linear spring characteristics with industry-leading tolerances in height and rate.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 550 lbs\/in for predictable chassis response and handling balance in high-demand racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.00 in free length x 3.00 in inside diameter fits standard coil-over assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-tensile chrome silicon steel, shot-peened and stress-relieved for fatigue resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction:\u003c\/strong\u003e Series manufactured with tolerances of +\/- 0.2mm height and +\/-1% rate for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Scragged, preset, and silver powder coated for immediate use and corrosion protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSold as single spring; order in pairs or sets as needed for application.\u003c\/li\u003e\n\u003cli\u003eSpecial order item; processing time varies by manufacturer stock.\u003c\/li\u003e\n\u003cli\u003eInspect shock perch and thread compatibility prior to installation.\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 proper tool; set preload to achieve target ride height.\u003c\/li\u003e\n\u003cli\u003eCompatible with most 3.00 in ID coil-over shocks from QA1, Penske, Ohlins, and similar.\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\u003eRace \u0026amp; Performance Vehicles\u003c\/td\u003e\n\u003ctd\u003e3 in ID Coil-Over Equipped\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\u003eDecades of motorsports involvement with parts on winning race cars globally.\u003c\/li\u003e\n\u003cli\u003eSeries production ensures consistent rate and dimensions across batches.\u003c\/li\u003e\n\u003cli\u003eEngineered linear force for reliable setup tuning in racing environments.\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 What coil-over shocks does this spring work with?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Fits 3.00 in ID coil-overs including QA1, Bilstein, Fox, Penske, and custom race shocks used in drag, road, and dirt applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the spring material and treatment?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Made from chrome silicon steel, dual-tempered, shot-peened, nitrogen fertilized, and epoxy powder coated for durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e One-year limited warranty against defects in materials or workmanship under normal racing 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 or FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Special order - usually ships in 3-5 business days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Individual protective box, 5 x 5 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41877263056975,"sku":"EIB0400.300.0550S","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/eibach-ers-4_00-in_-length-x-3_00-in_-id-coil-over-spring-eibach.jpg?v=1766042630","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-4-00-in-length-x-3-00-in-id-coil-over-spring","provider":"Black Ops Auto Works","version":"1.0","type":"link"}