{"product_id":"national-228250-engine-crankshaft-seal","title":"National 228250 Engine Crankshaft Seal - Rear","description":"\u003ch2\u003eOverview of National Engine Crankshaft Seal 228250\u003c\/h2\u003e\u003cp\u003eThe National 228250 engine crankshaft seal is designed to provide reliable sealing performance for various Ford, Kia, Mazda, and Mercury vehicles. Engineered with a fluoro-elastomer material and a counter-clockwise-spiral lip design, this oil seal ensures effective protection against oil leaks and contaminants.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 3.268 inches (83.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.945 inches (100.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.354 inches (9.000 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable fluoro-elastomer for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eHelix type: Counter-clockwise spiral lip design for enhanced sealing\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 3.937 inches (100.000 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 228250, Series 220000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis National engine crankshaft seal (part number 228250) is constructed from fluoro-elastomer, a material known for its resistance to high temperatures, oils, and chemicals commonly found in engine environments. The seal features a counter-clockwise spiral lip design that improves sealing efficiency by maintaining consistent contact with the crankshaft, reducing the risk of oil leakage. With an inside diameter of 3.268 inches and an outside diameter of 3.945 inches, it fits precisely into housings with a bore size of approximately 3.937 inches, ensuring a secure and tight fit.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis crankshaft seal is compatible with a range of vehicles including Ford Aspire, Capri, Escort, and Tracer models; Kia Rio and Sephia; Mazda Miata, MX-3, and Protege; as well as Mercury Capri and Tracer. The National 228250 seal is suitable for engine applications requiring a 32-type oil seal with the specified dimensions, making it a reliable replacement part for maintaining engine integrity.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 228250 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks around the crankshaft area\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the engine\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication by sealing oil within the engine\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the crankshaft and surrounding components\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine performance issues related to oil loss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 228250 crankshaft seal, ensure the housing bore is 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 performance. Lubricate the seal lip lightly with engine oil before installation to reduce initial wear and facilitate proper seating.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational engine crankshaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precision design contribute to long service life under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the 228250 part.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448292999349,"sku":"BCZK-228250","price":45.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_228250_Fro.jpg?v=1774734628","url":"https:\/\/www.partcatalog.com\/products\/national-228250-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}