{"product_id":"national-471504-engine-crankshaft-seal","title":"National 471504 Engine Crankshaft Seal - Front","description":"\u003ch2\u003eOverview of National 471504 Engine Crankshaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 471504 engine crankshaft seal is designed specifically for Jeep CJ5 models, providing reliable sealing performance. Manufactured from durable nitrile material, this oil seal ensures effective protection against oil leaks and contaminants.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.750 inches (44.450 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.441 inches (62.000 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.312 inches (7.920 mm)\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 2.437 inches (61.900 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Nitrile with Redicoat coating for enhanced durability\u003c\/li\u003e\n\u003cli\u003ePart number: 471504, Series 470000\u003c\/li\u003e\n\u003cli\u003eZero duplication part for precise fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National 471504 engine crankshaft seal is engineered to maintain a tight seal around the crankshaft of Jeep CJ5 vehicles. The nitrile construction offers resistance to oil, heat, and wear, while the Redicoat treatment improves the seal’s longevity and performance under demanding engine conditions. With an inside diameter of 1.750 inches and an outside diameter of 2.441 inches, this seal fits precisely within the housing bore of 2.437 inches, ensuring minimal leakage and optimal engine operation.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis crankshaft seal is used to prevent oil leaks and contamination in the engine crankshaft area. It addresses common issues such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOil leakage from the crankshaft seal area\u003c\/li\u003e\n\u003cli\u003eContaminant ingress causing premature engine wear\u003c\/li\u003e\n\u003cli\u003eSeal degradation due to heat and oil exposure\u003c\/li\u003e\n\u003cli\u003eVibration-related seal failure\u003c\/li\u003e\n\u003cli\u003eMaintaining engine oil pressure and cleanliness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the crankshaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the engine specifications\u003c\/li\u003e\n\u003cli\u003eCheck for proper seating to prevent leaks\u003c\/li\u003e\n\u003cli\u003eConsult Jeep CJ5 service manual for torque and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational 471504 crankshaft seals are manufactured to meet OEM specifications and undergo rigorous quality control to ensure durability and performance. The product is a zero duplication part, guaranteeing exact fitment for Jeep CJ5 models. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448301093045,"sku":"BCZK-471504","price":19.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_471504_Fro.jpg?v=1774734660","url":"https:\/\/www.partcatalog.com\/products\/national-471504-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}