{"product_id":"dorman-521-421-suspension-control-arm-and-ball-joint-assembly-rear-left-upper-or-rear-right-upper","title":"Dorman 521-421 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper or Rear Right Upper","description":"\u003ch2\u003eReliable Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-421 suspension control arm and ball joint assembly is engineered for Ford Escape, Mazda Tribute, and Mercury Mariner models. Designed to restore precise steering and suspension performance, this assembly comes pre-greased and ready for installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased for immediate use without additional lubrication\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings for effective vibration dampening\u003c\/li\u003e\n\u003cli\u003eMachined ball joint mounting with threaded stud for secure fit\u003c\/li\u003e\n\u003cli\u003eConstructed from durable stamped steel with a black finish\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford Escape, Mazda Tribute, and Mercury Mariner\u003c\/li\u003e\n\u003cli\u003eMounting hardware included for straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Construction and Design Features\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly features a stamped steel control arm designed for light suspension grade applications. The black finish provides corrosion resistance, while the included rubber bushings help absorb road shocks and reduce noise. The ball joint is machined and installed with a threaded stud, ensuring a precise and secure connection to the vehicle’s suspension system. With a control arm maximum width of 288.5 mm and length of 237 mm, this assembly fits the specified vehicle models accurately. The assembly is pre-greased, eliminating the need for immediate maintenance after installation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Dorman 521-421 assembly is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord Escape\u003c\/li\u003e\n\u003cli\u003eMazda Tribute\u003c\/li\u003e\n\u003cli\u003eMercury Mariner\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace worn or damaged suspension control arms and ball joints, restoring proper alignment and handling characteristics.\u003c\/p\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive play or looseness in the suspension control arm\u003c\/li\u003e\n\u003cli\u003eUnusual noises such as clunking or squeaking during driving\u003c\/li\u003e\n\u003cli\u003eUneven tire wear caused by misalignment\u003c\/li\u003e\n\u003cli\u003eReduced steering responsiveness or stability\u003c\/li\u003e\n\u003cli\u003eVibration or harshness felt through the steering wheel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 521-421 suspension control arm and ball joint assembly requires basic suspension knowledge and tools. Since the assembly comes pre-greased and includes bushings and mounting hardware, it is ready for direct installation. Ensure the vehicle is securely lifted and supported before beginning work. Torque all fasteners to manufacturer specifications and verify proper alignment 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, form, and function. The 521-421 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. Please refer to Dorman’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51931944157365,"sku":"BKKY-521-421","price":74.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521421_Fro.jpg?v=1775007854","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-421-suspension-control-arm-and-ball-joint-assembly-rear-left-upper-or-rear-right-upper","provider":"PartCatalog","version":"1.0","type":"link"}