{"product_id":"national-223420-engine-crankshaft-seal","title":"National 223420 Engine Crankshaft Seal - Front or Right","description":"\u003ch2\u003eOverview of National Engine Crankshaft Seal 223420\u003c\/h2\u003e\u003cp\u003eThe National 223420 engine crankshaft seal is designed to provide reliable sealing performance for various Ford, Nissan, Mazda, and Kia vehicles. Engineered with a fluoro-elastomer sealing material and a clockwise-spiral lip design, this oil seal ensures effective protection against oil leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.339 inches (34.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.898 inches (48.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.276 inches (7.000 mm)\u003c\/li\u003e\n\u003cli\u003eHelix type: Clockwise-spiral lip design for enhanced sealing\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable fluoro-elastomer for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple vehicle makes and models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 223420 crankshaft seal features a 1.339-inch (34 mm) inside diameter and a 1.898-inch (48.2 mm) outside diameter, fitting housing bores of approximately 1.890 inches (48 mm). Its 0.276-inch (7 mm) thickness provides a secure fit and effective sealing surface. The clockwise-spiral lip design helps maintain consistent contact with the crankshaft, reducing the risk of oil leakage under various operating conditions. Constructed from fluoro-elastomer, this seal offers resistance to high temperatures, oils, and automotive fluids, making it suitable for demanding engine environments.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis engine crankshaft seal is compatible with a range of vehicles, including Ford Escort, Tempo, and Probe; Nissan 200SX, 300ZX, Sentra, and Pathfinder; Mazda 323, 626, Miata, MX-3, MX-6, and Protege; Kia Sportage and Sephia; Mercury Capri and Villager; and Infiniti QX4 and G20 models. The part number 223420 ensures precise fitment for these applications, supporting proper engine sealing and performance.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 223420 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\u003eMinimizes wear on the crankshaft and surrounding components\u003c\/li\u003e\n\u003cli\u003eMaintains engine oil pressure and efficiency\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 223420 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 sealing lip. Verify the seal orientation matches the clockwise-spiral lip design for optimal performance. 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 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 223420 part number.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448285888693,"sku":"BCZK-223420","price":19.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_223420_Fro.jpg?v=1774734612","url":"https:\/\/www.partcatalog.com\/products\/national-223420-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}