{"product_id":"elring-721-680-engine-valve-stem-oil-seal","title":"Elring 721.680 Engine Valve Stem Oil Seal","description":"\u003ch2\u003eElring 721.680 Valve Stem Oil Seal\u003c\/h2\u003e\u003cp\u003eElring 721.680 is an engine valve stem oil seal made from FPM (fluoride rubber) for reliable sealing at the valve stem. With a 17 mm height, 11 mm inner diameter, 25.8 mm outer diameter, and 6 mm valve stem diameter, it is built for precise fitment in supported Ford, Lincoln, and Mazda applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine valve stem oil seal for sealing the valve guide area\u003c\/li\u003e\n\u003cli\u003eFPM (fluoride rubber) construction for heat- and oil-resistant service\u003c\/li\u003e\n\u003cli\u003e17 mm height for proper installed seal profile\u003c\/li\u003e\n\u003cli\u003e11 mm inner diameter and 25.8 mm outer diameter\u003c\/li\u003e\n\u003cli\u003eDesigned for 6 mm valve stem diameter applications\u003c\/li\u003e\n\u003cli\u003eElring part number 721.680 for catalog and service matching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication Details\u003c\/h2\u003e\u003cp\u003eThis seal is used in engines found in vehicles such as the Ford F-150, Ford Explorer, and Lincoln MKZ, along with other listed Ford, Lincoln, and Mazda models. Fits 2011-2021 Ford Explorer, N\/A; Fits 2010-2021 Ford F-150, N\/A; Fits 2007-2016 Lincoln MKZ, N\/A. This part cross-references MAHLE (e.g., SS46052) for the same application. The Elring 721.680 part number also helps confirm the correct seal when matching service parts by OE reference.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil leakage past the valve stem seal\u003c\/li\u003e\n\u003cli\u003eExcessive oil consumption from worn stem seals\u003c\/li\u003e\n\u003cli\u003eBlue exhaust smoke caused by oil entering the combustion chamber\u003c\/li\u003e\n\u003cli\u003eOil fouling on spark plugs and combustion components\u003c\/li\u003e\n\u003cli\u003eLoss of sealing performance during cylinder head service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify valve stem diameter, seal height, and outer diameter before installation. Clean the valve guide area thoroughly and inspect the valve stem for wear or scoring before fitting the new seal. Use proper valve seal installation tools and follow the engine service procedure for the specific Ford, Lincoln, or Mazda application. Confirm the part number 721.680 against the original seal and engine specifications before assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eElring is a recognized name in engine sealing systems, and this valve stem oil seal is manufactured to support precise sealing performance in service applications. The FPM material selection is suited to the heat and oil exposure common in overhead valve train environments.\u003c\/p\u003e","brand":"Elring","offers":[{"title":"Default Title","offer_id":52958128406709,"sku":"DTWD-721.680","price":16.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/EL_721680_FRO.jpg?v=1786425051","url":"https:\/\/www.partcatalog.com\/products\/elring-721-680-engine-valve-stem-oil-seal","provider":"PartCatalog","version":"1.0","type":"link"}