{"product_id":"dorman-538-129-suspension-ball-joint-front-left-lower","title":"Dorman 538-129 Suspension Ball Joint - Front Left Lower","description":"\u003ch2\u003eDorman 538-129 Front Left Lower Ball Joint\u003c\/h2\u003e\u003cp\u003eDorman 538-129 is a threaded suspension ball joint for specific Audi TT, TT Quattro, TT RS Quattro, and TTS Quattro applications. It is precision-engineered and tested as a direct replacement for the original equipment part on the front left lower position.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits select 2007-2023 Audi TT Quattro, front left lower\u003c\/li\u003e\n\u003cli\u003eFits select 2011-2014 and 2018-2023 Audi TT RS Quattro, front left lower\u003c\/li\u003e\n\u003cli\u003eFits select 2009-2023 Audi TTS Quattro, front left lower\u003c\/li\u003e\n\u003cli\u003eFits select 2007-2014 and 2016-2018 Audi TT, front left lower\u003c\/li\u003e\n\u003cli\u003eSteel construction with a grey finish\u003c\/li\u003e\n\u003cli\u003eDust boot included with rubber boot material\u003c\/li\u003e\n\u003cli\u003eStandard replacement suspension grade\u003c\/li\u003e\n\u003cli\u003eThreaded, bolt-in mounting type with 3 mounting holes\u003c\/li\u003e\n\u003cli\u003eMounting hardware included\u003c\/li\u003e\n\u003cli\u003eNo grease fitting, no greaseable design, and no adjustable feature\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension ball joint, part number 538-129, is built for the front left lower suspension position on select Audi TT platform vehicles. It uses a steel body, tapered stud, and threaded mounting design to match the OE-style service requirements for the application. The dust boot helps protect the joint from road contamination, while the standard replacement construction supports a straightforward repair on Audi TT Quattro and related models. This part cross-references Delphi TC2191 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Repair Symptoms\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront suspension clunking or popping over bumps\u003c\/li\u003e\n\u003cli\u003eExcessive play in the lower control arm area\u003c\/li\u003e\n\u003cli\u003eUneven tire wear related to worn suspension joints\u003c\/li\u003e\n\u003cli\u003eLoose or imprecise steering feel\u003c\/li\u003e\n\u003cli\u003eInspection failure from worn front suspension components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s front left lower suspension configuration before installation. Confirm stud thread length, wrench size, and mounting-hole alignment against the original part. Because this is a bolt-in, threaded ball joint, proper torque and clean mounting surfaces are important for correct fitment on Audi TT Quattro, TT RS Quattro, TTS Quattro, and TT applications. Always inspect adjacent suspension components during service.\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 replacement performance for the listed vehicles. Part number 538-129 is built to standard replacement specifications for consistent service fitment.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52763258290357,"sku":"BKKY-538-129","price":40.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_538129_Fro.jpg?v=1783144685","url":"https:\/\/www.partcatalog.com\/products\/dorman-538-129-suspension-ball-joint-front-left-lower","provider":"PartCatalog","version":"1.0","type":"link"}