{"product_id":"dorman-521-293-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 521-293 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 521-293 suspension control arm and ball joint assembly is designed specifically for Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 models. This pre-greased, aluminum control arm assembly offers a reliable replacement option for light suspension grade applications, ensuring proper vehicle handling and alignment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased for immediate installation\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings and mounting hardware\u003c\/li\u003e\n\u003cli\u003eAluminum control arm with black finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint with threaded stud included and installed\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500\u003c\/li\u003e\n\u003cli\u003eControl arm dimensions: maximum length 237 mm, maximum width 288.5 mm\u003c\/li\u003e\n\u003cli\u003eSingle mounting hole with 12.3 mm diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm and ball joint assembly (part number 521-293) is constructed from forged and cast aluminum, providing a balance of strength and lightweight performance. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, enhancing ride comfort. The ball joint is press-in mounted with a threaded stud (14 mm thread diameter) and is installed at the factory, ensuring a secure fit and reliable operation.\u003c\/p\u003e\u003cp\u003eThe control arm is designed for light suspension grade use, suitable for regular driving conditions. Its black finish helps resist corrosion, extending the service life of the component. Mounting hardware is included for a complete installation package, and the single mounting hole measures 12.3 mm in diameter, matching OEM specifications.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis control arm and ball joint assembly is compatible with the following Mercedes-Benz models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eML55 AMG\u003c\/li\u003e\n\u003cli\u003eML320\u003c\/li\u003e\n\u003cli\u003eML350\u003c\/li\u003e\n\u003cli\u003eML430\u003c\/li\u003e\n\u003cli\u003eML500\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to restore proper suspension geometry and improve vehicle stability, especially when replacing worn or damaged control arms and ball joints.\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 misalignment\u003c\/li\u003e\n\u003cli\u003eLoose or unstable steering feel\u003c\/li\u003e\n\u003cli\u003eVibration or harshness during 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\u003cp\u003eInstallation of the Dorman 521-293 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary. Ensure all mounting hardware is torqued to manufacturer specifications. It is recommended to perform a wheel alignment after installation to maintain proper 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. This suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43997070164149,"sku":"BKKY-521-293","price":146.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521293_Fro_39b6d1e1-39c5-4855-b61c-ff0738ce32eb.jpg?v=1775007834","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-293-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}