{"product_id":"national-229005-engine-crankshaft-seal","title":"National 229005 Engine Crankshaft Seal - Rear","description":"\u003ch2\u003eOverview of National Engine Crankshaft Seal 229005\u003c\/h2\u003e\u003cp\u003eThe National 229005 engine crankshaft seal is designed to provide reliable sealing performance for various BMW, Jeep, Lexus, Lincoln, Porsche, and Toyota 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: 90.00 mm (3.543 inches)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 110.31 mm (4.343 inches)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 12.00 mm (0.472 inches)\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable fluoro-elastomer for high resistance to heat and chemicals\u003c\/li\u003e\n\u003cli\u003eHelix type: Counter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 110.00 mm (4.331 inches)\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple vehicle makes and models including BMW 3 Series, Porsche 911, Toyota Supra, and Jeep Cherokee\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThe National 229005 crankshaft seal is constructed from fluoro-elastomer, a material known for its excellent resistance to high temperatures, oils, and automotive fluids. The seal features a counter-clockwise spiral lip design that enhances sealing efficiency by directing contaminants away from the shaft. With an inside diameter of 90 mm and an outside diameter of 110.31 mm, this seal fits precisely into the housing bore of 110 mm, ensuring a secure fit and optimal performance. The 12 mm thickness provides durability and longevity under demanding engine conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis engine crankshaft seal is compatible with a wide range of vehicles, including BMW models such as the 128i, 135i, 318i, 320i, 328i, 330i, 335i, and M3; Porsche models including 911, 924, 928, 944, 968, Boxster, and Cayman; as well as Jeep Cherokee and Comanche, Lexus GS300 and SC300, Lincoln Continental and Mark VII, and Toyota Supra. The part number 229005 ensures you receive the correct seal for these specific applications.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 229005 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks around the crankshaft area\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the engine\u003c\/li\u003e\n\u003cli\u003eMaintains engine oil pressure and performance\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on crankshaft and bearing surfaces\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 229005 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the lip or seal body. Verify the seal orientation matches the counter-clockwise spiral lip design for optimal sealing. Lubricate the seal lip lightly with clean engine oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 229005 crankshaft seal to meet stringent OEM standards, ensuring reliable performance and durability. The fluoro-elastomer material and precision design contribute to long service life under normal operating conditions. This product is backed by National's quality assurance processes. Please refer to the manufacturer's warranty documentation for specific coverage details.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448293327029,"sku":"BCZK-229005","price":26.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_229005_Fro_23c7d886-63b3-407f-9bc4-6a8c7390b13f.jpg?v=1774734629","url":"https:\/\/www.partcatalog.com\/products\/national-229005-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}