{"product_id":"dorman-520-757-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 520-757 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 520-757 suspension control arm and ball joint assembly is designed for select Mercedes-Benz models, including the 300CE, 300D, 300E, and others. This assembly combines a durable aluminum control arm with a pre-installed ball joint to provide reliable suspension performance and improved vehicle handling.\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\u003eMounting hardware included for straightforward installation\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Mercedes-Benz models from the 300 and 500 series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-757 control arm and ball joint assembly features a light suspension grade type suitable for regular driving conditions. The control arm is constructed from aluminum, offering a balance of strength and weight savings. It measures up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance. The assembly includes rubber bushings that help absorb road vibrations and reduce noise. The ball joint is pre-installed and pre-greased, eliminating the need for additional lubrication during installation. It uses a press-in mounting type with a threaded stud of 14 mm diameter, ensuring secure attachment. One mounting hole with a diameter of 12.3 mm is included, and all necessary mounting hardware comes with the package.\u003c\/p\u003e\u003ch2\u003eCompatible Mercedes-Benz Models\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly is compatible with a range of Mercedes-Benz vehicles, including the 300CE, 300D, 300E, 300SD, 300SDL, 300SE, 300SEL, 300SL, 300TD, 300TE, 350SD, 350SDL, 380SE, 380SEC, 380SEL, 420SEL, 500SEC, 500SEL, 560SEC, and 560SEL models. The part number 520-757 ensures proper fitment and performance for these specific vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arm bushings causing poor handling\u003c\/li\u003e\n\u003cli\u003eBall joint wear leading to steering looseness or noise\u003c\/li\u003e\n\u003cli\u003eCorroded or bent control arms affecting wheel alignment\u003c\/li\u003e\n\u003cli\u003eVibration and uneven tire wear due to suspension component failure\u003c\/li\u003e\n\u003cli\u003eDifficulty maintaining proper suspension geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 520-757 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 the vehicle is securely lifted and supported before removing the old control arm. Use the included mounting hardware for a proper fit. Verify torque specifications according to the vehicle manufacturer’s guidelines. Alignment check after installation is recommended to maintain optimal 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 for fit, form, and function. The 520-757 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43988584005813,"sku":"BKKY-520-757","price":71.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520757_Fro_bb2ac824-c22d-4965-9f81-41f3c0c0a4a6.jpg?v=1775007717","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-757-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}