{"product_id":"national-472572-manual-transmission-output-shaft-seal","title":"National 472572 Manual Transmission Output Shaft Seal","description":"\u003ch2\u003eOverview of National Manual Transmission Output Shaft Seal 472572\u003c\/h2\u003e\u003cp\u003eThe National Manual Transmission Output Shaft Seal 472572 is engineered to provide reliable sealing performance for select Chevrolet and Pontiac manual transmissions. Designed with durable nitrile material, this oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality nitrile for enhanced durability and resistance to wear\u003c\/li\u003e\n\u003cli\u003eInside diameter of 1.875 inches (47.630 mm) to fit specific output shafts\u003c\/li\u003e\n\u003cli\u003eOutside diameter measures 2.754 inches (69.950 mm) for precise housing bore compatibility\u003c\/li\u003e\n\u003cli\u003eSeal thickness of 0.312 inches (7.920 mm) ensures proper fit and sealing pressure\u003c\/li\u003e\n\u003cli\u003eRedicoat finish for improved corrosion resistance and extended service life\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National output shaft seal, part number 472572, is designed specifically for manual transmissions in Chevrolet and Pontiac vehicles, including models such as the Camaro, Corvette, Firebird, Grand Am, Grand LeMans, LeMans, Malibu, and Monte Carlo. The seal’s nitrile construction offers excellent resistance to oil, heat, and wear, making it suitable for demanding transmission environments. With an inside diameter of 1.875 inches and an outside diameter of 2.754 inches, it fits precisely into a housing bore of 2.750 inches (69.850 mm), ensuring a secure and leak-free installation. The 0.312-inch thickness provides the necessary sealing surface to prevent transmission fluid leaks along the output shaft.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transmission fluid leaks from the output shaft area\u003c\/li\u003e\n\u003cli\u003eProtects manual transmission internals from dirt and contaminants\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature transmission wear due to fluid loss\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper lubrication and transmission performance\u003c\/li\u003e\n\u003cli\u003eAddresses seal degradation caused by heat and mechanical stress\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transmission output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches manufacturer specifications, typically with the lip facing the fluid side\u003c\/li\u003e\n\u003cli\u003eInspect the shaft for wear or damage that could compromise the seal’s effectiveness\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transmission fluid or compatible lubricant to the seal lip prior to installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational’s Manual Transmission Output Shaft Seal 472572 is manufactured to meet strict quality standards, ensuring consistent dimensions and material properties. The seal is part of the 470000 series and features a Redicoat finish to resist corrosion. This product is backed by National’s warranty against defects in material and workmanship, providing confidence in its durability and performance when installed correctly in compatible Chevrolet and Pontiac manual transmissions.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448303747253,"sku":"BCZK-472572","price":22.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_472572_Fro.jpg?v=1774734667","url":"https:\/\/www.partcatalog.com\/products\/national-472572-manual-transmission-output-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}