{"product_id":"dorman-520-739-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 520-739 Suspension Control Arm and Ball Joint Assembly - Front Left Lower","description":"\u003ch2\u003eOverview of Dorman Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-739 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 provides a reliable replacement option for maintaining proper suspension geometry and vehicle handling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased ball joint for immediate use\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint mounting with threaded stud\u003c\/li\u003e\n\u003cli\u003eConstructed from durable iron with a black finish\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware for straightforward installation\u003c\/li\u003e\n\u003cli\u003eCompatible with light suspension grade applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman 520-739 control arm features a casting\/forged iron construction, ensuring structural integrity and durability. It comes pre-greased, eliminating the need for additional lubrication during installation. The ball joint is installed and includes a threaded stud with a 14 mm thread diameter, secured via a press-in mounting type. This assembly does not include bushings but comes with one mounting hole measuring 12.3 mm in diameter. The control arm measures up to 288.5 mm in width and 237 mm in length, finished in black to resist corrosion. Mounting hardware is included to facilitate a complete replacement.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly is compatible with a range of BMW vehicles, specifically the 318i, 318is, 318ti, 320i, 323i, 323is, 325i, 325is, 328i, 328is, and Z3 models. It is designed for light suspension grade use, making it suitable for standard driving conditions and maintaining factory suspension performance.\u003c\/p\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\u003eCorrosion or fatigue in original suspension components\u003c\/li\u003e\n\u003cli\u003eMisalignment resulting in uneven tire wear\u003c\/li\u003e\n\u003cli\u003eVibration or instability during driving\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 520-739 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 correctly with the vehicle’s frame and torque mounting hardware to manufacturer specifications. This assembly is not adjustable, so proper alignment should be verified after installation.\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 520-739 suspension control arm and ball joint assembly undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43988579647669,"sku":"BKKY-520-739","price":94.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520739_Fro.jpg?v=1775007714","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-739-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}