{"product_id":"national-710602-engine-crankshaft-seal","title":"National 710602 Engine Crankshaft Seal - Rear","description":"\u003ch2\u003eOverview of National 710602 Engine Crankshaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710602 engine crankshaft seal is designed to provide reliable sealing performance for select Chevrolet, GMC, Hummer, and Isuzu vehicles. Engineered with precision dimensions and a counter-clockwise spiral lip design, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 3.228 inches (82.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.798 inches (96.470 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.354 inches (9.000 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE for enhanced durability and chemical resistance\u003c\/li\u003e\n\u003cli\u003eHelix type: Counter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 3.790 inches (96.270 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 710602, Series 710600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis National crankshaft seal (part number 710602) is constructed from PTFE material, known for its resistance to heat, chemicals, and wear. The seal features a counter-clockwise spiral lip design that ensures a tight fit around the crankshaft, reducing the risk of oil leakage. With an inside diameter of 3.228 inches and an outside diameter of 3.798 inches, it fits precisely into housings with a bore diameter of approximately 3.790 inches. The 0.354-inch thickness provides a robust barrier against contaminants while maintaining flexibility for installation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis engine crankshaft seal is compatible with various models from Chevrolet, GMC, Hummer, and Isuzu, including Chevrolet Colorado and Canyon, GMC Canyon and Colorado, Hummer H3 and H3T, and Isuzu i-280, i-290, i-350, and i-370. The part number 710602 is specifically designed to meet the sealing requirements of these vehicles’ crankshaft assemblies.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710602 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 crankshaft bearings caused by oil loss\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine performance issues related to oil pressure drops\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710602 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the PTFE lip. Verify the seal orientation matches the counter-clockwise spiral lip design for optimal sealing. 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 seals are manufactured to meet industry standards for durability and performance. The 710602 crankshaft seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. 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":43448354046133,"sku":"BCZK-710602","price":27.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710602_Fro.jpg?v=1774734771","url":"https:\/\/www.partcatalog.com\/products\/national-710602-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}