{"product_id":"dorman-521-128-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 521-128 Suspension Control Arm and Ball Joint Assembly - Front Right Lower","description":"\u003ch2\u003eOverview of Dorman Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-128 suspension control arm and ball joint assembly is designed specifically for Scion xA and xB models. This pre-greased, steel control arm assembly offers a reliable replacement option for light suspension applications, ensuring proper vehicle handling and alignment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased 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 included and installed\u003c\/li\u003e\n\u003cli\u003eConstructed from durable steel with a black finish\u003c\/li\u003e\n\u003cli\u003eCompatible with Scion xA and xB suspension systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-128 control arm and ball joint assembly is engineered as a casting\/forged steel component, providing strength and durability for regular grade suspension needs. It features a single mounting hole with a diameter of 12.3 mm and a maximum control arm length of 237 mm and width of 288.5 mm. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, while the ball joint is press-in mounted with a 14 mm threaded stud for secure attachment. Mounting hardware is also provided to facilitate a straightforward replacement process.\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\u003eScion xA\u003c\/li\u003e\n\u003cli\u003eScion xB\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed for light suspension grade applications, making it suitable for everyday driving conditions and maintaining proper suspension geometry.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arm bushings causing poor handling\u003c\/li\u003e\n\u003cli\u003eBall joint wear leading to steering play or uneven tire wear\u003c\/li\u003e\n\u003cli\u003eCorroded or bent control arms affecting suspension alignment\u003c\/li\u003e\n\u003cli\u003eNoise or vibration from faulty suspension components\u003c\/li\u003e\n\u003cli\u003eDifficulty maintaining proper wheel alignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 521-128 control arm and ball joint assembly requires basic suspension repair tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly can be installed without additional lubrication. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all mounting hardware to manufacturer specifications. It is recommended to have a professional alignment performed after installation to maintain optimal handling and tire wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-128 suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a limited warranty against defects in material and workmanship, providing confidence in its reliability for Scion xA and xB suspension repairs.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43990199861429,"sku":"BKKY-521-128","price":98.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521128_Fro.jpg?v=1775007806","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-128-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}