{"product_id":"national-7457n-differential-pinion-seal","title":"National 7457N Differential Pinion Seal - Rear Outer","description":"\u003ch2\u003eOverview of National 7457N Differential Pinion Seal\u003c\/h2\u003e\u003cp\u003eThe National 7457N differential pinion seal is engineered to provide reliable sealing performance for driveline applications. Designed for select Chevrolet, Ford, and Pontiac models, this oil seal helps maintain proper lubrication and prevent leaks in the differential assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.656 inches (42.060 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.627 inches (66.730 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.455 inches (11.560 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: durable polyacrylate for effective sealing\u003c\/li\u003e\n\u003cli\u003eRedicoat surface treatment for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eSeries: 7000, Type: 1s\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet Camaro, Ford E-100 Econoline, Ford Econoline, Pontiac Firebird, and Pontiac GTO\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Specifications and Features\u003c\/h2\u003e\u003cp\u003eThe 7457N differential pinion seal features a precise inside diameter of 1.656 inches (42.060 mm) and an outside diameter of 2.627 inches (66.730 mm), ensuring a secure fit within the housing bore measuring approximately 2.623 inches (66.620 mm). Its 0.455-inch (11.560 mm) thickness provides a robust barrier against oil leakage. Constructed from polyacrylate, this seal offers chemical resistance and durability under typical driveline operating conditions. The Redicoat treatment enhances the seal’s surface, reducing wear and extending service life.\u003c\/p\u003e\u003ch2\u003eApplications and Compatibility\u003c\/h2\u003e\u003cp\u003eThis differential pinion seal is compatible with various driveline systems in Chevrolet, Ford, and Pontiac vehicles. Specifically, it fits models such as the Chevrolet Camaro, Ford E-100 Econoline, Ford Econoline, Pontiac Firebird, and Pontiac GTO. The part number 7457N ensures correct identification for replacement needs in these vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks in differential pinion shafts\u003c\/li\u003e\n\u003cli\u003eMaintains lubrication integrity within the differential housing\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress to protect internal components\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature wear of driveline parts\u003c\/li\u003e\n\u003cli\u003eSupports smooth differential operation and vehicle performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 7457N differential pinion seal, ensure the housing bore and shaft surfaces are clean and free of debris. Proper alignment during installation is critical to avoid seal damage. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the original part to maintain effective sealing. Lubricate the seal lip lightly with gear oil before installation to reduce initial wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 7457N differential pinion seal to meet industry standards for durability and performance. The polyacrylate material and Redicoat treatment contribute to consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448237293749,"sku":"BCZK-7457N","price":35.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_7457N_Fro.jpg?v=1774734546","url":"https:\/\/www.partcatalog.com\/products\/national-7457n-differential-pinion-seal","provider":"PartCatalog","version":"1.0","type":"link"}