{"product_id":"inmotion-wa512221-wheel-bearing-and-hub-assembly-rear","title":"InMotion WA512221 Wheel Bearing and Hub Assembly - Rear","description":"\u003ch2\u003eRear Wheel Hub Assembly for GM Applications\u003c\/h2\u003e\u003cp\u003eThe InMotion WA512221 wheel bearing and hub assembly is a direct replacement rear hub built for precise fitment and dependable wheel support. Engineered from OE data and measurements, it is made for select Pontiac, Buick, and Chevrolet rear applications, including Grand Prix, Impala, Monte Carlo, Aztek, Regal, Allure, Century, and LaCrosse models.\u003c\/p\u003e\u003cp\u003eUse WA512221 when you need a rear wheel hub assembly that matches the original application dimensions and mounting layout. The design focuses on correct fit, stable wheel mounting, and long service life in standard-grade rear positions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear wheel bearing and hub assembly for select GM vehicles\u003c\/li\u003e\n\u003cli\u003eDirect replacement design based on OE data and measurements\u003c\/li\u003e\n\u003cli\u003eFlange bolt hole quantity: 4\u003c\/li\u003e\n\u003cli\u003eWheel stud quantity: 5\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter: 115.0 mm \/ 4.53 in.\u003c\/li\u003e\n\u003cli\u003eWheel pilot diameter: 70.1\u003c\/li\u003e\n\u003cli\u003eBrake pilot diameter: 70.5\u003c\/li\u003e\n\u003cli\u003eHub pilot diameter: 71.8\u003c\/li\u003e\n\u003cli\u003eFlange offset: 64.8\u003c\/li\u003e\n\u003cli\u003eFlange diameter: 150.5\u003c\/li\u003e\n\u003cli\u003eRectangular flange shape\u003c\/li\u003e\n\u003cli\u003eABS sensor not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eInMotion WA512221 is a rear wheel bearing and hub assembly designed for vehicles that require a standard-grade OE-style replacement at the rear axle. The hub is manufactured with high-precision processes and strict quality-control criteria to maintain the dimensional accuracy needed for proper wheel mounting and bearing support. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., RW8221) for the same application. For buyers searching for a rear wheel hub assembly for 2000-2005 Chevrolet Impala, 2003-2008 Pontiac Grand Prix, or 2001-2005 Pontiac Aztek, WA512221 provides a direct-fit solution built around the original application measurements.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWheel play or looseness at the rear hub\u003c\/li\u003e\n\u003cli\u003eNoise from a worn rear wheel bearing and hub assembly\u003c\/li\u003e\n\u003cli\u003eImproper wheel mounting caused by hub wear\u003c\/li\u003e\n\u003cli\u003eVibration related to hub or bearing deterioration\u003c\/li\u003e\n\u003cli\u003eFitment issues from an incorrect rear replacement hub\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConfirm rear position fitment before ordering; this part is for rear applications only.\u003c\/li\u003e\n\u003cli\u003eVerify bolt circle, pilot diameters, and flange dimensions against the original hub.\u003c\/li\u003e\n\u003cli\u003eABS sensor is not included, so confirm your vehicle’s sensor arrangement before installation.\u003c\/li\u003e\n\u003cli\u003eInspect related brake and suspension components during hub replacement.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when replacing a wheel bearing and hub assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eInMotion manufactures this hub assembly using OE-based measurements and controlled production standards to support accurate fitment and consistent performance. The part is built as a direct replacement for the listed rear applications, including Pontiac Grand Prix, Chevrolet Impala, and Buick Regal models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2003-2008 Pontiac Grand Prix, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2005 Buick Allure, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2004-2005 Buick Century, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2005 Buick LaCrosse, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2000-2005 Chevrolet Impala, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 Chevrolet Monte Carlo, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2001-2005 Pontiac Aztek, Rear, Standard Grade\u003c\/li\u003e\n\u003cli\u003eFits 2003-2004 Buick Regal, Rear, Standard Grade\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"InMotion","offers":[{"title":"Default Title","offer_id":52404432208053,"sku":"HKKS-WA512221","price":91.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WJ_WA512221_Fro.jpg?v=1777767758","url":"https:\/\/www.partcatalog.com\/products\/inmotion-wa512221-wheel-bearing-and-hub-assembly-rear","provider":"PartCatalog","version":"1.0","type":"link"}