{"product_id":"national-710901-engine-crankshaft-seal-rear","title":"National 710901 Engine Crankshaft Seal - Rear","description":"\u003ch2\u003eOverview of National 710901 Engine Crankshaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710901 engine crankshaft seal is designed to provide reliable sealing performance for select Ford vehicles. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 4.646 inches (118.008 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 5.762 inches (146.355 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.750 inches (19.050 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable PTFE for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eHelix type: Clockwise-spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 5.748 inches (145.999 mm)\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710901 crankshaft seal is part of the 710900 series, crafted from PTFE material known for its chemical resistance and durability under high temperatures. Its 4.646-inch inside diameter and 5.762-inch outside diameter ensure a precise fit for the crankshaft and housing bore, which measures approximately 5.748 inches. The 0.750-inch thickness provides a robust sealing surface, while the clockwise-spiral lip design enhances oil retention and reduces leakage risks. This seal is specifically engineered for Ford heavy-duty models including the E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty, ensuring compatibility and reliable performance in demanding engine environments.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks around the crankshaft in Ford E-350 and F-Series Super Duty engines\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress to protect engine components\u003c\/li\u003e\n\u003cli\u003eMaintains engine oil pressure by sealing the crankshaft housing\u003c\/li\u003e\n\u003cli\u003eAddresses wear-related seal failures in heavy-duty Ford trucks and vans\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly engine repairs caused by oil leakage and contamination\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the crankshaft and housing bore are clean and free of debris before installation. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing. Use appropriate tools to press the seal evenly into the housing bore to avoid damage. Check for proper fitment with the Ford model and part number 710901 to confirm compatibility.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 710901 crankshaft seal to meet industry standards for durability and performance. The PTFE material and precision engineering contribute to long service life under typical operating conditions. Warranty details should be confirmed with the product documentation or supplier, as they may vary.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":52166024364213,"sku":"BCZK-710901","price":38.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710901_Fro.jpg?v=1775590340","url":"https:\/\/www.partcatalog.com\/products\/national-710901-engine-crankshaft-seal-rear","provider":"PartCatalog","version":"1.0","type":"link"}