{"product_id":"elring-686-870-engine-crankshaft-seal","title":"Elring 686.870 Engine Crankshaft Seal - Rear","description":"\u003ch2\u003eOverview of Elring Engine Crankshaft Seal 686.870\u003c\/h2\u003e\u003cp\u003eThe Elring 686.870 engine crankshaft seal is designed for reliable sealing performance in select Dodge, Jeep, and Mercedes-Benz vehicles. Engineered with durable materials and precise dimensions, this seal helps maintain engine integrity by preventing oil leaks around the crankshaft.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: PTFE (polytetrafluoroethylene) combined with ACM (polyacrylate rubber) for enhanced durability and chemical resistance\u003c\/li\u003e\n\u003cli\u003eInside Diameter: 93.0 mm, ensuring a precise fit for compatible crankshafts\u003c\/li\u003e\n\u003cli\u003eHousing Type: Aluminium housing for lightweight strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eRadial Shaft Seal Design: SP type, optimized for effective sealing under radial shaft movement\u003c\/li\u003e\n\u003cli\u003eSwirl Type: LD, designed to improve sealing efficiency and reduce leakage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Elring 686.870 crankshaft seal features a PTFE and ACM composite material that offers excellent wear resistance and flexibility, suitable for high-temperature engine environments. The aluminium housing provides structural support while resisting corrosion, which is critical for long-term engine performance. With a 93.0 mm inside diameter, this seal is engineered to fit specific crankshaft sizes found in various Dodge, Jeep, and Mercedes-Benz models, including the Grand Cherokee, E320, ML350, and Sprinter 3500 series. The SP radial shaft seal design combined with the LD swirl type enhances the seal's ability to maintain a tight barrier against oil leaks, even under dynamic engine conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDodge Grand Cherokee\u003c\/li\u003e\n\u003cli\u003eJeep Grand Cherokee\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz E320, E350, GL320, GL350, GLE350d, GLS350d\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz ML320, ML350\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz R320, R350, S350\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz Sprinter 2500, Sprinter 3500, Sprinter 3500XD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Crankshaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks around the crankshaft area\u003c\/li\u003e\n\u003cli\u003eReduces engine contamination from external debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper oil pressure by sealing the crankshaft housing\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on crankshaft bearings caused by oil leakage\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly engine repairs related to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the crankshaft surface is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the PTFE\/acm sealing lip during fitting\u003c\/li\u003e\n\u003cli\u003eVerify the inside diameter (93.0 mm) matches the crankshaft specifications of your vehicle\u003c\/li\u003e\n\u003cli\u003eApply a thin layer of engine oil to the seal lip to facilitate smooth installation\u003c\/li\u003e\n\u003cli\u003eCheck for proper seating of the aluminium housing to prevent misalignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eElring manufactures the 686.870 crankshaft seal to meet stringent automotive standards, ensuring reliable sealing performance and durability. The use of high-quality PTFE and ACM materials combined with precision aluminium housing construction supports long service life. While specific warranty details may vary, Elring products typically come with manufacturer-backed quality guarantees to protect against defects in materials and workmanship.\u003c\/p\u003e","brand":"Elring","offers":[{"title":"Default Title","offer_id":43413452652725,"sku":"DTWD-686.870","price":44.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/EL_686870_Fro.jpg?v=1774730696","url":"https:\/\/www.partcatalog.com\/products\/elring-686-870-engine-crankshaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}