{"product_id":"dorman-520-959-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 520-959 Suspension Control Arm and Ball Joint Assembly - Front Left Upper","description":"\u003ch2\u003eDurable Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-959 suspension control arm and ball joint assembly is engineered for reliable performance in select Mercedes-Benz models. Designed with pre-greased components and included bushings, this assembly supports smooth suspension operation and vehicle stability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased for immediate use without additional lubrication\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings and mounting hardware for a complete installation\u003c\/li\u003e\n\u003cli\u003eAluminum control arm with a black finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint with threaded stud for secure mounting\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercedes-Benz CLS and E-Class AMG and standard models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly (part number 520-959) features a forged aluminum control arm designed for light suspension grade applications. The assembly includes a press-in ball joint with a 14 mm threaded stud, pre-installed and pre-greased to reduce maintenance needs. Rubber bushings are included to absorb vibrations and provide a quieter ride. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single 12.3 mm mounting hole for secure attachment. Mounting hardware is supplied to facilitate installation.\u003c\/p\u003e\u003ch2\u003eCompatible Mercedes-Benz Models\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm and ball joint assembly is compatible with the following Mercedes-Benz vehicles: CLS55 AMG, CLS63 AMG, CLS500, CLS550, E55 AMG, E63 AMG, E320, E350, E500, and E550. It is designed to meet the suspension requirements of these models, ensuring proper fit and function.\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\u003eBall joint wear leading to uneven tire wear or clunking noises\u003c\/li\u003e\n\u003cli\u003eCorroded or bent control arms affecting suspension alignment\u003c\/li\u003e\n\u003cli\u003eVibration or rough ride due to compromised suspension components\u003c\/li\u003e\n\u003cli\u003eLoose or missing mounting hardware impacting suspension integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 520-959 assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary during assembly. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. This control arm is not adjustable, so proper alignment should be verified after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman suspension components are manufactured to meet or exceed OEM standards for durability and fitment. The 520-959 control arm and ball joint assembly undergoes quality inspections to ensure reliable performance. Please refer to Dorman’s warranty policy for coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43988614054069,"sku":"BKKY-520-959","price":139.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520959_Fro.jpg?v=1775007766","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-959-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}