{"product_id":"skf-21390a-transfer-case-output-shaft-seal-rear","title":"SKF 21390A Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eReliable Transfer Case Output Shaft Seal for Ford Super Duty\u003c\/h2\u003e\u003cp\u003eThe SKF 21390A transfer case output shaft seal is designed to provide a precise fit and durable sealing solution for Ford F-250 Super Duty and F-350 Super Duty models. Engineered to maintain optimal performance, this seal helps prevent fluid leaks and protects your transfer case components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeal Type: HMSA92 for effective sealing performance\u003c\/li\u003e\n\u003cli\u003eShaft Diameter: 2.114 inches ensuring accurate fitment\u003c\/li\u003e\n\u003cli\u003eWidth: 0.441 inches for proper sealing depth\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford F-250 Super Duty and F-350 Super Duty transfer cases\u003c\/li\u003e\n\u003cli\u003ePart Number: 21390A for easy identification and replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe SKF 21390A transfer case output shaft seal features a HMSA92 seal type, which is designed to provide a tight barrier against contaminants and fluid leakage. With a shaft diameter of 2.114 inches and a width of 0.441 inches, this seal fits precisely on the output shaft of the transfer case, ensuring reliable operation. The dimensions are critical for maintaining the integrity of the transfer case system in Ford F-250 Super Duty and F-350 Super Duty trucks, which require robust sealing solutions due to their heavy-duty use.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to component damage\u003c\/li\u003e\n\u003cli\u003eProtects against dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case output shaft area\u003c\/li\u003e\n\u003cli\u003eReduces wear on transfer case components by ensuring a secure seal\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure in Ford Super Duty trucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the SKF 21390A transfer case output shaft seal, ensure the shaft diameter matches the specified 2.114 inches for proper fit. Clean the sealing surface thoroughly before installation to prevent contamination. Use appropriate tools to avoid damaging the seal during installation, and verify the seal is seated evenly to maintain effective sealing performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSKF is a recognized manufacturer of automotive sealing solutions, known for precision engineering and durability. The 21390A transfer case output shaft seal is manufactured to meet OEM specifications for Ford F-250 Super Duty and F-350 Super Duty models. While specific warranty details are not provided, SKF products typically come with quality assurance backed by industry standards to ensure reliable service life.\u003c\/p\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":52218737524917,"sku":"BCNB-21390A","price":13.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CR_21390A_Fro.jpg?v=1775665469","url":"https:\/\/www.partcatalog.com\/products\/skf-21390a-transfer-case-output-shaft-seal-rear","provider":"PartCatalog","version":"1.0","type":"link"}