{"product_id":"national-8773s-power-steering-pump-shaft-seal","title":"National 8773S Power Steering Pump Shaft Seal","description":"\u003ch2\u003ePower Steering Pump Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 8773S Power Steering Pump Shaft Seal is engineered to provide reliable sealing performance for a variety of vehicles including Cadillac, Chevrolet, Ford, and more. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain system integrity and prevent fluid leaks in power steering pumps.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.687 inch (17.45 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.254 inch (31.85 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.250 inch (6.35 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eHelix type: Clockwise-spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 1.250 inch (31.75 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 8773S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 8773S power steering pump shaft seal is part of the 8000 series and is specifically designed to fit a wide range of vehicles such as the Ford Mustang, Chevrolet Impala, Cadillac DeVille, and Dodge Charger. Its nitrile construction offers excellent resistance to hydraulic fluids and wear, ensuring long-lasting performance. The seal features a clockwise-spiral lip design that enhances sealing efficiency by preventing fluid leakage around the pump shaft. With precise inside and outside diameters, this seal fits housing bores of 1.250 inches, making it suitable for many power steering pump applications.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents power steering fluid leaks from the pump shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the power steering system\u003c\/li\u003e\n\u003cli\u003eMaintains hydraulic pressure for consistent steering performance\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature pump wear due to fluid loss\u003c\/li\u003e\n\u003cli\u003eAddresses seal failure symptoms such as whining noises or steering difficulty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip with power steering fluid to ease installation and prevent damage\u003c\/li\u003e\n\u003cli\u003eUse proper tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the clockwise-spiral lip facing the fluid side\u003c\/li\u003e\n\u003cli\u003eInspect the shaft for wear or damage that could compromise seal performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 8773S power steering pump shaft seal to meet industry standards for durability and performance. The nitrile material and precise engineering ensure reliable sealing under typical operating conditions. This part is backed by National's quality control processes, providing confidence in fitment and function for compatible vehicles including Cadillac, Chevrolet, Ford, and Dodge models.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448242667701,"sku":"BCZK-8773S","price":12.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_8773S_Fro_69c76f53-00b6-4d9b-ba8c-e08860797ce4.jpg?v=1774734556","url":"https:\/\/www.partcatalog.com\/products\/national-8773s-power-steering-pump-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}