{"product_id":"dorman-540-002-suspension-ball-joint-front-lower","title":"Dorman 540-002 Suspension Ball Joint - Front Lower","description":"\u003ch2\u003eDorman 540-002 Front Lower Ball Joint\u003c\/h2\u003e\u003cp\u003eDorman 540-002 is a threaded suspension ball joint built as a direct replacement for the original equipment design on select Ford and Mercury SUVs and trucks. It is precision-engineered and tested for dependable front suspension service on the Explorer, Explorer Sport Trac, and Mountaineer.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThreaded, press-in suspension ball joint for front lower applications\u003c\/li\u003e\n\u003cli\u003eMetal construction with a grey finish\u003c\/li\u003e\n\u003cli\u003eDust boot included to help protect the joint from contamination\u003c\/li\u003e\n\u003cli\u003eCastle nut and mounting hardware included\u003c\/li\u003e\n\u003cli\u003eTapered stud with cotter pin hole\u003c\/li\u003e\n\u003cli\u003eStandard suspension grade replacement\u003c\/li\u003e\n\u003cli\u003eGrease fitting not included; non-greaseable design\u003c\/li\u003e\n\u003cli\u003eCompatible with 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer, front lower\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension ball joint, part number 540-002, is engineered for front lower suspension service where a worn joint can affect steering response, tire wear, and front-end stability. The threaded design, press-in mounting type, and tapered stud match the OE-style layout used on select Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer models. A polychloroprene dust boot is included to help shield the joint from road debris and moisture, while the metal body supports consistent fit and function in demanding suspension use. This part cross-references MOOG Chassis Products K80771 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront-end clunking or popping over bumps\u003c\/li\u003e\n\u003cli\u003eLoose or imprecise steering feel\u003c\/li\u003e\n\u003cli\u003eUneven tire wear caused by excess suspension play\u003c\/li\u003e\n\u003cli\u003eSuspension noise from a worn lower ball joint\u003c\/li\u003e\n\u003cli\u003eInspection failures related to ball joint wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 2006-2010 Ford Explorer, front lower. Fits 2007-2010 Ford Explorer Sport Trac, front lower. Fits 2006-2010 Mercury Mountaineer, front lower. Verify the press-in, threaded configuration and stud dimensions before installation. The cotter pin hole and castle nut support secure fastening during assembly. Professional installation and proper suspension alignment are recommended after replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman states this ball joint is precision-engineered and rigorously tested to provide reliable OE-style replacement performance on the listed vehicles.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52763277394101,"sku":"BKKY-540-002","price":35.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_540002_Bac.jpg?v=1783146950","url":"https:\/\/www.partcatalog.com\/products\/dorman-540-002-suspension-ball-joint-front-lower","provider":"PartCatalog","version":"1.0","type":"link"}