{"product_id":"timken-sp620303-wheel-bearing-and-hub-assembly","title":"Timken SP620303 Wheel Bearing and Hub Assembly - Front","description":"\u003ch2\u003eTimken SP620303 Wheel Bearing and Hub Assembly Overview\u003c\/h2\u003e\u003cp\u003eThe Timken SP620303 wheel bearing and hub assembly is engineered for reliable performance in heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD, this assembly ensures precise fitment and durability under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e36 spline quantity for secure axle engagement\u003c\/li\u003e\n\u003cli\u003e8 wheel studs for robust wheel mounting\u003c\/li\u003e\n\u003cli\u003e4 flange bolt holes for stable attachment\u003c\/li\u003e\n\u003cli\u003eWheel pilot diameter of 123.99 mm (4.881 inches) for accurate wheel centering\u003c\/li\u003e\n\u003cli\u003eBrake pilot diameter of 126.95 mm (4.998 inches) to support brake component alignment\u003c\/li\u003e\n\u003cli\u003eHub pilot diameter of 114.04 mm (4.490 inches) for proper hub positioning\u003c\/li\u003e\n\u003cli\u003eFlange offset of 2.927 mm (74.35 inches) and flange diameter of 221.30 mm (8.713 inches)\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter of 180.00 mm (7.087 inches) matching OEM specifications\u003c\/li\u003e\n\u003cli\u003eDesigned for driven axle applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Timken SP620303 is a wheel bearing and hub assembly tailored for driven axles on select Chevrolet and GMC heavy-duty trucks. Its 36-spline design ensures a secure connection to the axle shaft, while the 8-wheel stud configuration provides a stable mounting surface for wheels. The precise wheel pilot diameter of 123.99 mm (4.881 inches) and brake pilot diameter of 126.95 mm (4.998 inches) facilitate proper alignment of wheels and brake components, reducing vibration and wear. The hub pilot diameter of 114.04 mm (4.490 inches) guarantees accurate hub placement, critical for maintaining vehicle stability and handling. Flange offset and diameter measurements conform to factory specifications, ensuring compatibility with OEM parts and maintaining proper wheel positioning.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Timken wheel bearing and hub assembly is compatible with the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Sierra 2500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Sierra 3500 HD\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 HD\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 3500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 2500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 3500 HD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates wheel bearing noise caused by wear or damage\u003c\/li\u003e\n\u003cli\u003eResolves wheel wobble and vibration issues\u003c\/li\u003e\n\u003cli\u003ePrevents premature brake component misalignment\u003c\/li\u003e\n\u003cli\u003eCorrects hub misalignment affecting steering and handling\u003c\/li\u003e\n\u003cli\u003eRestores secure wheel mounting to prevent lug nut loosening\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eProper installation of the Timken SP620303 requires attention to torque specifications for flange bolts and wheel studs. Ensure the hub pilot and wheel pilot diameters align correctly with the vehicle’s components to avoid premature wear. It is recommended to inspect axle splines for damage before installation and to use appropriate tools to avoid contamination of the bearing surfaces. Professional installation is advised to maintain vehicle safety and performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eTimken manufactures the SP620303 wheel bearing and hub assembly to meet or exceed OEM standards for durability and performance. The product undergoes rigorous quality control testing to ensure reliability in heavy-duty applications. Warranty coverage details should be confirmed with the supplier or manufacturer, as Timken typically offers limited warranties covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Timken","offers":[{"title":"Default Title","offer_id":45135260090549,"sku":"BCPZ-SP620303","price":232.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TM_SP620303_Ang.jpg?v=1775100235","url":"https:\/\/www.partcatalog.com\/products\/timken-sp620303-wheel-bearing-and-hub-assembly","provider":"PartCatalog","version":"1.0","type":"link"}