{"product_id":"dorman-520-740-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 520-740 Suspension Control Arm and Ball Joint Assembly - Front Right Lower","description":"\u003ch2\u003eOverview of Dorman Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-740 suspension control arm and ball joint assembly is designed for select BMW models, including the 318i, 318is, 318ti, 320i, 323i, 323is, 325i, 325is, 328i, 328is, and Z3. This assembly combines a durable iron control arm with a pre-installed ball joint to provide reliable suspension performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased ball joint for immediate use\u003c\/li\u003e\n\u003cli\u003eIron control arm with casting\/forged construction\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware for straightforward installation\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint with threaded stud (14 mm thread diameter)\u003c\/li\u003e\n\u003cli\u003eCompatible with light suspension grade applications\u003c\/li\u003e\n\u003cli\u003eBlack finish control arm measuring up to 288.5 mm width and 237 mm length\u003c\/li\u003e\n\u003cli\u003eSingle mounting hole with 12.3 mm diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-740 suspension control arm and ball joint assembly is engineered to meet the suspension needs of various BMW models such as the 318i and 328is. Constructed from iron with a casting and forging process, this control arm offers structural integrity suitable for light suspension grade applications. The ball joint is press-in mounted and comes pre-greased, eliminating the need for additional lubrication during installation. The threaded ball joint stud ensures secure attachment, while the included mounting hardware simplifies the replacement process. This assembly does not include bushings, focusing on the core components necessary for suspension control and steering precision.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 318i, 318is, 318ti\u003c\/li\u003e\n\u003cli\u003eBMW 320i\u003c\/li\u003e\n\u003cli\u003eBMW 323i, 323is\u003c\/li\u003e\n\u003cli\u003eBMW 325i, 325is\u003c\/li\u003e\n\u003cli\u003eBMW 328i, 328is\u003c\/li\u003e\n\u003cli\u003eBMW Z3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arms causing poor handling\u003c\/li\u003e\n\u003cli\u003eBall joint wear leading to steering play or noise\u003c\/li\u003e\n\u003cli\u003eCorroded or weakened suspension components\u003c\/li\u003e\n\u003cli\u003eUneven tire wear due to suspension misalignment\u003c\/li\u003e\n\u003cli\u003eVibration or clunking noises from front suspension\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 520-740 assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary. Ensure the mounting hole aligns properly with the vehicle’s frame using the included hardware. The control arm is not adjustable, so proper alignment should be verified after installation. It is recommended to inspect related suspension components during replacement to maintain overall system integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards for fit and function. The 520-740 suspension control arm and ball joint assembly undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43988579778741,"sku":"BKKY-520-740","price":94.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520740_Fro_f01a7804-8789-4b76-a9d8-5c5d8402e2e2.jpg?v=1775007714","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-740-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}