{"product_id":"national-710618-engine-crankshaft-seal","title":"National 710618 Engine Crankshaft Seal - Front","description":"\u003ch2\u003eOverview of National 710618 Engine Crankshaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710618 engine crankshaft seal is designed for reliable sealing performance in select Audi, Porsche, and Volkswagen models. 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: 1.378 inches (35.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.895 inches (48.130 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.394 inches (10.000 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE for enhanced durability and chemical resistance\u003c\/li\u003e\n\u003cli\u003eHelix type: Clockwise-spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 1.890 inches (48.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710618 crankshaft seal belongs to the 710600 series and features a 32-type design optimized for engine sealing applications. Its PTFE construction offers resistance to heat, oil, and wear, making it suitable for demanding engine environments. The seal’s clockwise-spiral lip design ensures a tight fit around the crankshaft, reducing the risk of oil leakage and contamination. With precise dimensions—1.378 inch inside diameter and 1.895 inch outside diameter—this seal fits housing bores measuring approximately 1.890 inches, ensuring compatibility with specific engine configurations.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis engine crankshaft seal is compatible with a range of Audi, Porsche, and Volkswagen vehicles, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAudi A3, A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, Allroad Quattro, S4, TT, TT Quattro\u003c\/li\u003e\n\u003cli\u003ePorsche Cayenne, Panamera\u003c\/li\u003e\n\u003cli\u003eVolkswagen Beetle, Cabrio, CC, Eos, EuroVan, Golf, Golf City, Golf SportWagen, Jetta, Jetta City, Passat, Passat CC, R32, Touareg, Q7\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by the 710618 Crankshaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks around the crankshaft area\u003c\/li\u003e\n\u003cli\u003eReduces engine contamination from external debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper oil pressure within the engine\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on crankshaft bearings by retaining lubrication\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly engine repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710618 crankshaft seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the PTFE lip. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing. It is recommended to inspect the crankshaft surface for wear or damage before installation to ensure a proper fit and long service life.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 710618 crankshaft seal to meet industry standards for durability and performance. The PTFE material and precision engineering contribute to consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448354930869,"sku":"BCZK-710618","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710618_Fro.jpg?v=1774734772","url":"https:\/\/www.partcatalog.com\/products\/national-710618-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}