{"product_id":"lesjofors-4008403-coil-spring-front","title":"Lesjofors 4008403 Coil Spring - Front","description":"\u003ch2\u003eOE-Quality Front Coil Spring\u003c\/h2\u003e\u003cp\u003eLesjofors 4008403 is a front coil spring for select BMW 318i and 318is applications. It is built from high-strength steel and finished for corrosion resistance, making it a direct replacement for worn or sagging suspension springs.\u003c\/p\u003e\u003cp\u003eCompatible With 1991 BMW 318i, front and 1984-1985 BMW 318i, front, as well as 1991 BMW 318is, front.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront coil spring for suspension service and ride-height restoration\u003c\/li\u003e\n\u003cli\u003eManufactured from high-strength steel\u003c\/li\u003e\n\u003cli\u003eHeat treated, shot peened, and pre-set for consistent spring performance\u003c\/li\u003e\n\u003cli\u003eZinc phosphate coated and epoxy powder coat painted for added corrosion protection\u003c\/li\u003e\n\u003cli\u003eSeat included: No\u003c\/li\u003e\n\u003cli\u003ePart number: 4008403\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eLesjofors 4008403 is engineered as an OE-quality replacement coil spring for the front suspension on BMW 318i and BMW 318is models listed in the fitment data. Lesjofors has a long spring-making history and supplies replacement springs built to meet demanding factory-style specifications. This part cross-references BMW OE numbers 31331126399 and 31331127284 for the same application.\u003c\/p\u003e\u003cp\u003eFor buyers searching for a front coil spring for 1991 BMW 318i, front suspension repair for 1984-1985 BMW 318i, or a replacement spring for 1991 BMW 318is, this part number 4008403 provides a direct-fit service option.\u003c\/p\u003e\u003ch2\u003eWhat This Spring Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSagging front ride height\u003c\/li\u003e\n\u003cli\u003eBroken or fatigued coil spring replacement\u003c\/li\u003e\n\u003cli\u003eUneven front suspension stance\u003c\/li\u003e\n\u003cli\u003eLoss of original spring rate from age and corrosion\u003c\/li\u003e\n\u003cli\u003eFront-end noise caused by a damaged spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstall 4008403 on the front axle only for the listed BMW applications. Because coil springs store significant energy, use proper spring-compression tools and follow factory service procedures during removal and installation. Inspect related suspension components, including strut mounts and isolators, before reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eLesjofors coil springs are manufactured to OE-quality standards using heat treatment, shot peening, presetting, and protective coatings to support consistent performance and corrosion resistance.\u003c\/p\u003e","brand":"Lesjofors","offers":[{"title":"Default Title","offer_id":52401915658421,"sku":"CNHW-4008403","price":78.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/LJ_4008403_Fro.jpg?v=1777763819","url":"https:\/\/www.partcatalog.com\/products\/lesjofors-4008403-coil-spring-front","provider":"PartCatalog","version":"1.0","type":"link"}