{"product_id":"dorman-521-522-suspension-control-arm-and-ball-joint-assembly-front-right-upper","title":"Dorman 521-522 Suspension Control Arm and Ball Joint Assembly - Front Right Upper","description":"\u003ch2\u003eOverview of Dorman Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-522 suspension control arm and ball joint assembly is designed for select Mercedes-Benz models, including GL320, GL350, GL450, GL500, GL550, ML63 AMG, ML320, ML350, ML450, ML500, ML550, R63 AMG, R320, R350, and R500. This assembly combines a durable aluminum control arm with a pre-installed ball joint to provide reliable suspension performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased ball joint for immediate use\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings for vibration dampening\u003c\/li\u003e\n\u003cli\u003eAluminum control arm with casting\/forged construction\u003c\/li\u003e\n\u003cli\u003eThreaded ball joint stud with press-in mounting type\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Mercedes-Benz GL, ML, and R-Class models\u003c\/li\u003e\n\u003cli\u003eMounting hardware included for straightforward installation\u003c\/li\u003e\n\u003cli\u003eControl arm dimensions: maximum width 288.5 mm, maximum length 237 mm\u003c\/li\u003e\n\u003cli\u003eBlack finish for corrosion resistance and durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm and ball joint assembly (part number 521-522) is engineered to meet the suspension needs of various Mercedes-Benz vehicles. The control arm is constructed from lightweight aluminum using casting and forging methods, ensuring strength and resistance to wear. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce road noise and absorb shocks, contributing to a smoother ride. The ball joint features a threaded stud and a press-in mounting type, designed for secure attachment and reliable steering control. The black finish helps protect the control arm from corrosion, extending its service life.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMercedes-Benz GL320, GL350, GL450, GL500, GL550\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz ML63 AMG, ML320, ML350, ML450, ML500, ML550\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz R63 AMG, R320, R350, R500\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis assembly is intended for light suspension grade applications and is not adjustable. It is suitable for replacing worn or damaged control arms and ball joints to restore proper suspension geometry and vehicle handling.\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 misaligned suspension\u003c\/li\u003e\n\u003cli\u003eLoose or unstable steering feel\u003c\/li\u003e\n\u003cli\u003eVibration or harshness over bumps\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\u003eBefore installation, verify compatibility with your specific Mercedes-Benz model and year. The assembly includes mounting hardware for ease of installation. Since the ball joint is pre-greased and installed, no additional lubrication is necessary. Use proper tools to press the ball joint into place if removal or replacement is required. Torque all fasteners to manufacturer specifications to ensure safety and performance.\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. This suspension control arm and ball joint assembly undergoes quality inspections to ensure durability and reliability. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52123238891701,"sku":"BKKY-521-522","price":106.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521522_Fro.jpg?v=1775162885","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-522-suspension-control-arm-and-ball-joint-assembly-front-right-upper","provider":"PartCatalog","version":"1.0","type":"link"}