{"product_id":"dorman-521-491-suspension-control-arm-rear-upper-forward","title":"Dorman 521-491 Suspension Control Arm - Rear Upper Forward","description":"\u003ch2\u003eDorman 521-491 Rear Upper Forward Control Arm\u003c\/h2\u003e\u003cp\u003eDorman 521-491 is a suspension control arm engineered as a direct replacement for the original equipment on select Mercedes-Benz vehicles. Built with an aluminum body, coated finish, and rubber bushings, it is made for the rear upper forward position at the knuckle on specific CL-Class and S-Class applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrecision-engineered replacement control arm for select Mercedes-Benz rear suspension applications\u003c\/li\u003e\n\u003cli\u003eAluminum construction with casting\/forged design for OE-style fit and function\u003c\/li\u003e\n\u003cli\u003eCoated black finish for added corrosion resistance\u003c\/li\u003e\n\u003cli\u003eRubber bushing included for suspension articulation and noise isolation\u003c\/li\u003e\n\u003cli\u003eWelded ball joint mounting type with threaded stud design\u003c\/li\u003e\n\u003cli\u003eNo ball joint installed, allowing replacement of the arm assembly as specified for the application\u003c\/li\u003e\n\u003cli\u003eCompatible with rear upper forward, position at knuckle fitments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm is built for the rear upper forward location on select Mercedes-Benz CL500, CL55 AMG, CL600, S350, S430, S500, S55 AMG, and S600 models. The aluminum casting\/forged construction is paired with a coated black finish and a rubber bushing to support suspension geometry and help maintain consistent rear-end alignment characteristics. Dorman 521-491 is a practical OE-style replacement for vehicles that need a direct-fit rear upper forward control arm, including Mercedes-Benz CL500 rear upper forward, Mercedes-Benz S430 rear upper forward, and Mercedes-Benz S500 rear upper forward applications.\u003c\/p\u003e\u003cp\u003eThis part cross-references Delphi TC1752 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear suspension looseness or instability\u003c\/li\u003e\n\u003cli\u003eClunking or knocking from worn control arm bushings\u003c\/li\u003e\n\u003cli\u003eUneven tire wear related to rear suspension wear\u003c\/li\u003e\n\u003cli\u003eAlignment drift caused by worn rear upper control arm components\u003c\/li\u003e\n\u003cli\u003eExcessive play at the knuckle connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the rear upper forward position at the knuckle before installation. This control arm does not include mounting hardware, and the ball joint is not installed. Inspect adjacent suspension components, fasteners, and alignment settings during service, and replace any worn related parts before final alignment.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman designs this control arm as a precision-engineered replacement and subjects it to rigorous testing to support reliable OE-style service on the listed Mercedes-Benz applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52752774791349,"sku":"BKKY-521-491","price":79.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521491_Fro.jpg?v=1782886985","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-491-suspension-control-arm-rear-upper-forward","provider":"PartCatalog","version":"1.0","type":"link"}