{"product_id":"dorman-521-054-suspension-control-arm-and-ball-joint-assembly-rear-right-upper-rearward","title":"Dorman 521-054 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper Rearward","description":"\u003ch2\u003eDorman 521-054 Rear Right Upper Rearward Control Arm\u003c\/h2\u003e\u003cp\u003eDorman 521-054 is a direct replacement suspension control arm and ball joint assembly for specific Hyundai and Kia applications. It is built for the rear right upper rearward position and uses a steel casting\/forged control arm with a pre-greased, installed ball joint for consistent suspension movement.\u003c\/p\u003e\u003cp\u003eCompatible with 2009-2014 Hyundai Genesis, 2011-2016 Hyundai Equus, and 2015-2017 Kia K900, this assembly is made to restore stable rear suspension geometry and predictable handling. The Dorman 521-054 also includes rubber bushings and mounting hardware for a service-ready replacement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement suspension control arm and ball joint assembly\u003c\/li\u003e\n\u003cli\u003eFits the rear right upper rearward suspension position\u003c\/li\u003e\n\u003cli\u003eSteel control arm with black finish\u003c\/li\u003e\n\u003cli\u003eBall joint is installed and pre-greased\u003c\/li\u003e\n\u003cli\u003eRubber bushings included\u003c\/li\u003e\n\u003cli\u003eMounting hardware included\u003c\/li\u003e\n\u003cli\u003eThreaded ball joint stud with 14 mm thread diameter\u003c\/li\u003e\n\u003cli\u003ePressed attachment type with one mounting hole\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm assembly is engineered for OE-style fitment on select Hyundai Genesis, Hyundai Equus, and Kia K900 models. The forged\/casting steel construction supports light-duty suspension service, while the installed ball joint and rubber bushings help maintain smooth articulation and directional stability. The Dorman 521-054 is a practical replacement when the original rear suspension link shows wear, looseness, or alignment-related issues.\u003c\/p\u003e\u003cp\u003eThis part cross-references Delphi TC7430 for the same application. It also cross-references Mevotech Supreme CMS90192 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Can Help Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear suspension clunking or knocking from worn joints or bushings\u003c\/li\u003e\n\u003cli\u003eExcessive play in the rear right upper rearward link\u003c\/li\u003e\n\u003cli\u003eUneven rear tire wear related to suspension looseness\u003c\/li\u003e\n\u003cli\u003eUnstable rear-end tracking or wandering during driving\u003c\/li\u003e\n\u003cli\u003eAlignment problems caused by a worn control arm assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify vehicle fitment by year, make, model, and rear right upper rearward position before installation. Because the ball joint is already installed and the assembly is pre-greased, the part is ready for suspension service once the original component is removed. After installation, a professional wheel alignment is recommended to confirm rear suspension geometry.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman uses an industry-focused evaluation process for this replacement assembly to support smooth ride quality, directional stability, and predictable suspension response. The part number is 521-054.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52752771219637,"sku":"BKKY-521-054","price":63.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521054_Fro.jpg?v=1782886838","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-054-suspension-control-arm-and-ball-joint-assembly-rear-right-upper-rearward","provider":"PartCatalog","version":"1.0","type":"link"}