{"product_id":"dorman-531-921-suspension-ball-joint-front-lower","title":"Dorman 531-921 Suspension Ball Joint - Front Lower","description":"\u003ch2\u003eDorman 531-921 Front Lower Ball Joint\u003c\/h2\u003e\u003cp\u003eDorman 531-921 is a metal suspension ball joint engineered as a direct replacement for the original equipment on specific vehicles. It is built for front lower suspension service on Mazda RX-7 and Mazda 626 applications from the late 1970s through the mid-1980s.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement suspension ball joint for front lower position\u003c\/li\u003e\n\u003cli\u003eMetal housing and metal bearing material\u003c\/li\u003e\n\u003cli\u003eGreaseable design with zerk fitting included\u003c\/li\u003e\n\u003cli\u003ePressed mounting type with taper stud\u003c\/li\u003e\n\u003cli\u003eCastle nut, cotter pin, and mounting hardware included\u003c\/li\u003e\n\u003cli\u003eDust boot made from polychloroprene\u003c\/li\u003e\n\u003cli\u003eStud thread diameter: 12 mm with M1.5 thread pitch\u003c\/li\u003e\n\u003cli\u003eHousing press fit diameter: 43.05 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1979-1985 Mazda RX-7, front lower.\u003c\/li\u003e\n\u003cli\u003eFits 1979-1982 Mazda 626, front lower.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis part cross-references Mevotech Original Grade GK9095 and Mevotech Supreme MK9095 for the same application. The Dorman 531-921 is also listed with interchange references including 817349310, K-9095, and K9095.\u003c\/p\u003e\u003ch2\u003eDetailed Replacement Overview\u003c\/h2\u003e\u003cp\u003eUse Dorman 531-921 when replacing a worn front lower ball joint on a Mazda RX-7 or Mazda 626. The pressed-in design, taper stud, and included castle nut and cotter pin support a proper suspension connection at the steering knuckle, while the greaseable construction gives service access through the zerk fitting. For shoppers searching for a Mazda RX-7 front lower ball joint or a Mazda 626 front lower suspension ball joint, this part number matches the listed OE-style application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive front suspension play\u003c\/li\u003e\n\u003cli\u003eClunking or knocking from the lower control arm area\u003c\/li\u003e\n\u003cli\u003eUneven tire wear related to worn ball joint movement\u003c\/li\u003e\n\u003cli\u003eLoose or imprecise steering feel\u003c\/li\u003e\n\u003cli\u003eVisible boot damage or grease loss at the joint\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003ePress-fit ball joints require proper removal and installation equipment to avoid damage to the control arm. Confirm the housing press fit diameter, stud thread size, and front lower position before installation. After service, torque fasteners to the vehicle specification and verify cotter pin engagement. Because this is a greaseable joint, service the zerk fitting after installation according to the vehicle maintenance schedule.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman states that this suspension ball joint is precision-engineered and rigorously tested for reliable replacement on the specified vehicles. The metal construction, pressed mounting design, and included service components support consistent fitment for the listed Mazda applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52756088914101,"sku":"BKKY-531-921","price":28.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_531921_Fro.jpg?v=1782973668","url":"https:\/\/www.partcatalog.com\/products\/dorman-531-921-suspension-ball-joint-front-lower","provider":"PartCatalog","version":"1.0","type":"link"}