{"product_id":"national-240356-steering-gear-sector-shaft-seal","title":"National 240356 Steering Gear Sector Shaft Seal","description":"\u003ch2\u003eSteering Gear Sector Shaft Seal\u003c\/h2\u003e\u003cp\u003eNational 240356 is a steering gear sector shaft seal built for classic manual-steering applications. It uses nitrile sealing material and precise dimensional sizing to help maintain a tight seal at the steering gear housing.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNitrile construction for sealing performance in steering gear service\u003c\/li\u003e\n\u003cli\u003eOil seal design for sector shaft applications\u003c\/li\u003e\n\u003cli\u003eMeasured to match the specified shaft and housing bore dimensions\u003c\/li\u003e\n\u003cli\u003ePart of National Series 240000\u003c\/li\u003e\n\u003cli\u003eFits a wide range of vintage Chrysler, Dodge, Ford, Lincoln, Mercury, Checker, DeSoto, Fargo, and Plymouth applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis National steering gear sector shaft seal is engineered for vehicles that use a manual steering gear setup or the listed steering gear configurations. The seal dimensions include a 1.250-inch shaft size, 1.686-inch housing bore, and 0.187-inch width, with nitrile used for the sealing material. National 240356 is a direct-fit sealing component for restoring the steering gear interface on many older vehicles, including Ford F-100, Ford F-250, and Ford F-350 applications with the specified 3-tooth type and manual steering. It also covers numerous Chrysler, Dodge, Plymouth, Mercury, Lincoln, DeSoto, Checker, and Fargo models listed in the fitment data. This part cross-references Gates (e.g., 12334, 22494) for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Repair Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStops steering gear oil seepage at the sector shaft\u003c\/li\u003e\n\u003cli\u003eAddresses fluid loss from worn or hardened seal material\u003c\/li\u003e\n\u003cli\u003eHelps correct steering gear contamination from external leakage\u003c\/li\u003e\n\u003cli\u003eReplaces a damaged seal during steering gear service\u003c\/li\u003e\n\u003cli\u003eSupports restoration work on older manual-steering systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the shaft diameter, housing bore, and seal width before installation. Fitment varies by make, model, year, and steering configuration, and some applications require manual steering or specific tooth-type steering gear details. Review the vehicle notes carefully before ordering. National 240356 should be installed as a precision sealing component during steering gear service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNational has supplied sealing solutions for more than 75 years and is recognized for its focus on advanced sealing design for modern and legacy vehicles. Part number 240356 is backed by that sealing expertise and the dimensional consistency expected for steering gear service.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":53604146282677,"sku":"BCZK-240356","price":18.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_240356_Fro.jpg?v=1792998921","url":"https:\/\/www.partcatalog.com\/products\/national-240356-steering-gear-sector-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}