{"product_id":"dorman-520-975-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 520-975 Suspension Control Arm and Ball Joint Assembly - Rear Upper Forward","description":"\u003ch2\u003eDurable Suspension Control Arm and Ball Joint Assembly for BMW Models\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-975 suspension control arm and ball joint assembly is engineered to restore precise handling and suspension performance for select BMW vehicles. Designed specifically for models such as the 525i, 528i, 530i, 540i, 740i, 740iL, 750iL, and M5, this assembly offers a reliable replacement option that meets regular suspension grade requirements.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased for immediate installation and smooth operation\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings and mounting hardware for a complete setup\u003c\/li\u003e\n\u003cli\u003eConstructed from durable steel with a black finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eBall joint installed with a pinch bolt stud type for secure attachment\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 525i, 528i, 530i, 540i, 740i, 740iL, 750iL, and M5 models\u003c\/li\u003e\n\u003cli\u003ePart number 520-975 ensures exact fit and function\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis suspension control arm assembly features a casting\/forged steel control arm with a maximum width of 288.5 mm and length of 237 mm, designed to meet the demands of light suspension grade applications. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, while the pressed attachment type ensures a secure fit. The ball joint is factory-installed and features a 14 mm thread diameter with a pinch bolt stud type, providing reliable steering and suspension articulation. One mounting hole with a diameter of 12.3 mm is included, along with all necessary mounting hardware for straightforward replacement.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cp\u003eThis Dorman 520-975 suspension control arm and ball joint assembly is compatible with a range of BMW vehicles, including the 525i, 528i, 530i, 540i, 740i, 740iL, 750iL, and M5. It is designed to restore factory suspension geometry and improve vehicle stability, making it suitable for owners seeking a direct replacement part that meets OEM specifications.\u003c\/p\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arm bushings causing excessive play\u003c\/li\u003e\n\u003cli\u003eFaulty ball joints leading to uneven tire wear or steering issues\u003c\/li\u003e\n\u003cli\u003eCorroded or bent control arms affecting alignment and handling\u003c\/li\u003e\n\u003cli\u003eSuspension noise or vibrations due to degraded components\u003c\/li\u003e\n\u003cli\u003eReduced vehicle stability and control during cornering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 520-975 assembly requires basic suspension knowledge and tools. Since the part comes pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before removing the old control arm. Verify that the mounting hole aligns correctly and torque all fasteners to manufacturer specifications. An alignment check is recommended after installation to maintain proper suspension geometry.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman suspension components are manufactured to meet or exceed industry standards for durability and performance. The 520-975 control arm and ball joint assembly undergoes rigorous quality control to ensure fitment and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship, providing confidence in the product's reliability.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43988619755701,"sku":"BKKY-520-975","price":54.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520975_Fro.jpg?v=1775007770","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-975-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}