{"product_id":"skf-21040-wheel-seal-front","title":"SKF 21040 Wheel Seal - Front","description":"\u003ch2\u003eWheel Seal Overview\u003c\/h2\u003e\u003cp\u003eSKF wheel seal 21040 is a front wheel seal for select Nissan trucks and pickups. It is built to keep lubricant contained and help block contaminants at the hub, supporting reliable driveline sealing in demanding service conditions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNitrile sealing surface for dependable sealing performance.\u003c\/li\u003e\n\u003cli\u003eSpecific dimensions: 0.315 in. width, 2.563 in. outside diameter, and 2.126 in. shaft diameter.\u003c\/li\u003e\n\u003cli\u003eEngineered for front wheel applications on select Nissan 620 and Nissan 720 models.\u003c\/li\u003e\n\u003cli\u003eSKF seal design and material selection are based on long-running sealing development.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eSKF 21040 is a wheel seal made for front hub sealing applications on 1978-1979 Nissan 620 and 1980-1985 Nissan 720 models. The nitrile sealing surface is selected for its sealing characteristics, while the listed dimensions help ensure proper fit at the shaft and housing interface. This part number 21040 is also cross-referenced to 145821040 and 975921040 for the same application.\u003c\/p\u003e\u003cp\u003eSKF has a long history in seal engineering, including early integrated shaft seal development and continued work on bonding methods and material design. For Nissan 620 and Nissan 720 service, that focus translates into a seal built to match the application environment and retain lubricants while helping keep out road debris and moisture.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil or grease leakage at the wheel hub\u003c\/li\u003e\n\u003cli\u003eContamination entering the sealed hub area\u003c\/li\u003e\n\u003cli\u003eWear caused by degraded sealing surfaces\u003c\/li\u003e\n\u003cli\u003eLoss of sealing integrity from age or heat exposure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify shaft diameter, outside diameter, and width before installation. Clean the hub and sealing surfaces thoroughly, and inspect the mating components for wear or scoring that could affect seal life. Confirm front-position fitment for the correct Nissan 620 or Nissan 720 application before assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eSKF manufactures seals to specific designs using premium materials and quality-focused production standards. The brand’s sealing heritage spans more than a century, with products developed to support long service life and safe operation.\u003c\/p\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":53657922338997,"sku":"BCNB-21040","price":12.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CR_21040_Fro.jpg?v=1793603639","url":"https:\/\/www.partcatalog.com\/products\/skf-21040-wheel-seal-front","provider":"PartCatalog","version":"1.0","type":"link"}