{"product_id":"dorman-521-129-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 521-129 Suspension Control Arm and Ball Joint Assembly - Front Left Upper","description":"\u003ch2\u003eOverview of Dorman Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-129 suspension control arm and ball joint assembly is designed for Ford Expedition and Lincoln Navigator models. This pre-greased, iron control arm assembly includes rubber bushings and a press-in ball joint, providing reliable suspension performance for light suspension grade applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased control arm and ball joint for immediate use\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings and mounting hardware\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint with threaded stud for secure fitment\u003c\/li\u003e\n\u003cli\u003eConstructed from durable iron with a black finish\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford Expedition and Lincoln Navigator vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-129 suspension control arm and ball joint assembly is engineered with a casting\/forged iron control arm that measures up to 288.5 mm in width and 237 mm in length. It features a single mounting hole with a diameter of 12.3 mm, designed for straightforward installation. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to help absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is press-in mounted and includes a threaded stud with a 14 mm thread diameter, ensuring a secure and stable connection to the suspension system. This assembly is intended for light suspension grade use and is not adjustable.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord Expedition\u003c\/li\u003e\n\u003cli\u003eLincoln Navigator\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and vehicle handling.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive suspension noise or clunking\u003c\/li\u003e\n\u003cli\u003eUneven tire wear due to misaligned suspension\u003c\/li\u003e\n\u003cli\u003eLoose or unstable steering feel\u003c\/li\u003e\n\u003cli\u003eVibration or harshness while driving\u003c\/li\u003e\n\u003cli\u003eWorn or damaged control arm bushings or ball joints\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle is securely lifted and supported before installation\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with Ford Expedition or Lincoln Navigator model year\u003c\/li\u003e\n\u003cli\u003eUse included mounting hardware for proper fitment\u003c\/li\u003e\n\u003cli\u003eCheck torque specifications for mounting bolts and ball joint stud\u003c\/li\u003e\n\u003cli\u003eInspect surrounding suspension components for wear during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman suspension components are manufactured to meet or exceed OEM standards. The 521-129 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a limited warranty against defects in materials and workmanship, providing confidence in its reliability for Ford Expedition and Lincoln Navigator applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43990219161781,"sku":"BKKY-521-129","price":95.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521129_Fro.jpg?v=1775007806","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-129-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}