{"product_id":"bilstein-47-311039-suspension-kit-front","title":"Bilstein 47-311039 Suspension Kit - Front","description":"\u003ch2\u003eBilstein B8 6112 Suspension Kit Overview\u003c\/h2\u003e\u003cp\u003eThe Bilstein B8 6112 suspension kit (part number 47-311039) is engineered for Lexus and Toyota light trucks, including the 4Runner, FJ Cruiser, and GX460. Designed to enhance vehicle handling and ride quality, this kit features a monotube internal design and a snap ring grooved coilover body for reliable performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMonotube internal design for consistent damping\u003c\/li\u003e\n\u003cli\u003eSnap ring grooved body (coilover) construction\u003c\/li\u003e\n\u003cli\u003eFront main spring rate of 700 lbs\/in for improved load handling\u003c\/li\u003e\n\u003cli\u003eStroke\/travel length of 4.79 inches (121.7 mm)\u003c\/li\u003e\n\u003cli\u003eCollapsed length of 16.86 inches (428.3 mm) and extended length of 21.65 inches (550 mm)\u003c\/li\u003e\n\u003cli\u003e60mm piston diameter and 18mm shaft diameter for durability\u003c\/li\u003e\n\u003cli\u003eZinc plated dampers with black springs finish\u003c\/li\u003e\n\u003cli\u003eSpring seat included for secure installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Bilstein B8 6112 suspension kit is designed specifically for light trucks such as the Lexus GX460 and Toyota 4Runner and FJ Cruiser models. The monotube shock absorber design provides consistent damping performance by allowing better heat dissipation and reducing fade during extended use. The snap ring grooved coilover body ensures secure spring placement and easy adjustment. With a front main spring rate of 700 lbs\/in, this kit supports heavier loads and improves vehicle stability under various driving conditions.\u003c\/p\u003e\u003cp\u003eThe kit features a piston diameter of 60mm and a shaft diameter of 18mm, contributing to its robust construction. The stroke length of 4.79 inches allows for adequate suspension travel, balancing comfort and control. Finished with zinc plated dampers and black springs, the components resist corrosion and maintain durability over time. The included spring seat ensures proper spring positioning and secure fitment.\u003c\/p\u003e\u003ch2\u003eAbout the B8 6112 Product Line\u003c\/h2\u003e\u003cp\u003eThe Bilstein B8 6112 series is tailored for light truck applications, focusing on coilover-style suspension kits that combine monotube shock technology with high spring rates. This product line is engineered to provide enhanced handling and load capacity for vehicles like the Lexus GX460 and Toyota 4Runner and FJ Cruiser, making it suitable for both on-road and moderate off-road use.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eImproves handling and stability on rough or uneven terrain\u003c\/li\u003e\n\u003cli\u003eReduces body roll during cornering and heavy load conditions\u003c\/li\u003e\n\u003cli\u003eRestores suspension travel and ride height for lifted or modified vehicles\u003c\/li\u003e\n\u003cli\u003eEnhances load carrying capacity for towing or hauling\u003c\/li\u003e\n\u003cli\u003eAddresses worn or fatigued factory shocks and springs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Bilstein B8 6112 suspension kit (part number 47-311039) requires basic suspension knowledge and appropriate tools. The kit includes spring seats but does not come with boots or reservoirs. Ensure the vehicle is securely lifted and supported before removing factory components. Verify spring orientation and preload settings during assembly to maintain proper suspension geometry. It is recommended to have a professional alignment performed after installation to optimize handling and tire wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBilstein suspension components are manufactured to meet strict quality standards, utilizing durable materials and advanced engineering. The B8 6112 suspension kit undergoes rigorous testing to ensure consistent performance and longevity. Warranty details are provided by Bilstein and typically cover defects in materials and workmanship under normal use. Consult the manufacturer’s warranty documentation for specific terms and conditions.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":52275140919477,"sku":"BBGL-47-311039","price":786.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/B5_47311039_Fro.jpg?v=1775849525","url":"https:\/\/www.partcatalog.com\/products\/bilstein-47-311039-suspension-kit-front","provider":"PartCatalog","version":"1.0","type":"link"}