{"product_id":"dorman-521-506-suspension-control-arm","title":"Dorman 521-506 Suspension Control Arm - Rear Right Lower Rearward","description":"\u003ch2\u003eDurable Aluminum Suspension Control Arm for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-506 suspension control arm is engineered for reliable performance on select Mercedes-Benz models including CLS55 AMG, E55 AMG, and SL600. Crafted from aluminum with a coated black finish, this control arm offers strength and corrosion resistance for long-lasting suspension support.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from lightweight, durable aluminum with casting and forging techniques\u003c\/li\u003e\n\u003cli\u003eIncludes a black rubber bushing with a 14.3 mm inside diameter for smooth articulation\u003c\/li\u003e\n\u003cli\u003eOverall length of 262.5 mm designed to match factory specifications\u003c\/li\u003e\n\u003cli\u003eBall joint mounting type is welded with a threaded stud (ball joint not included)\u003c\/li\u003e\n\u003cli\u003eCoated black finish enhances corrosion resistance and durability\u003c\/li\u003e\n\u003cli\u003ePress-in end type with bushing linkage for secure fitment\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Mercedes-Benz models such as CLS350, E500, and SL550\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Construction\u003c\/h2\u003e\u003cp\u003eThis suspension control arm features a robust aluminum construction combining casting and forging methods to ensure structural integrity under dynamic driving conditions. The included rubber bushing, finished in black, measures 39.6 mm outside diameter and 92 mm in length, providing effective vibration dampening and noise reduction. The control arm’s 262.5 mm overall length aligns precisely with OEM specifications for a direct replacement. The welded ball joint mounting type with a threaded stud allows for secure attachment of the ball joint, although the ball joint itself is not included with this part.\u003c\/p\u003e\u003ch2\u003eCompatible Mercedes-Benz Models\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm (part number 521-506) is compatible with a range of Mercedes-Benz vehicles, including CLS55 AMG, CLS63 AMG, CLS350, CLS500, CLS550, E55 AMG, E63 AMG, E320, E350, E500, E550, SL55 AMG, SL500, SL550, and SL600. Ensure compatibility by verifying your vehicle’s model and year before installation.\u003c\/p\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arm bushings causing steering instability\u003c\/li\u003e\n\u003cli\u003eCorroded or weakened control arm structure affecting suspension alignment\u003c\/li\u003e\n\u003cli\u003eExcessive vibration or noise from faulty suspension components\u003c\/li\u003e\n\u003cli\u003eLoose or damaged ball joint mounting points\u003c\/li\u003e\n\u003cli\u003eUneven tire wear due to suspension misalignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 521-506 control arm requires basic suspension knowledge and appropriate tools. Since the ball joint is not included, inspect the existing ball joint for wear and replace if necessary. The control arm features a press-in end and bushing linkage, so proper pressing tools are recommended for bushing installation or removal. Always torque mounting hardware to manufacturer specifications and perform a wheel alignment after installation to ensure optimal handling and tire wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-506 control arm undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43997212672181,"sku":"BKKY-521-506","price":145.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521506_Fro_ceba968f-07af-4645-9463-99dfe7f372a7.jpg?v=1775007868","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-506-suspension-control-arm","provider":"PartCatalog","version":"1.0","type":"link"}