{"product_id":"dayco-89172-accessory-drive-belt-idler-pulley","title":"Dayco 89172 Accessory Drive Belt Idler Pulley - Power Steering","description":"\u003ch2\u003eOverview of Dayco Accessory Drive Belt Idler Pulley 89172\u003c\/h2\u003e\u003cp\u003eThe Dayco accessory drive belt idler pulley 89172 is engineered for reliable performance in Mercury Quest and Nissan Villager vehicles. Constructed from durable steel, this serpentine belt idler pulley supports smooth belt operation and helps maintain proper tension in the accessory drive system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Steel construction for strength and durability\u003c\/li\u003e\n\u003cli\u003eBelt Type: Designed for serpentine belts\u003c\/li\u003e\n\u003cli\u003eBearing Inner Diameter: 17 mm for precise fitment\u003c\/li\u003e\n\u003cli\u003eBearing Width: 12 mm ensuring stable rotation\u003c\/li\u003e\n\u003cli\u003eSupports up to 4-rib belt width\u003c\/li\u003e\n\u003cli\u003eSingle bearing design for efficient operation\u003c\/li\u003e\n\u003cli\u003eFlat pulley profile compatible with specified belt types\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dayco 89172 idler pulley features a steel body that withstands the stresses of continuous engine operation. Its 17 mm bearing inner diameter and 12 mm bearing width provide a secure and smooth rotation, reducing wear on the serpentine belt. The pulley is designed to accommodate belts with up to four ribs, making it suitable for the accessory drive belt systems found in Mercury Quest and Nissan Villager models. The flat pulley design ensures proper belt alignment and tension, which is critical for the longevity of the belt and connected components.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis accessory drive belt idler pulley is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMercury Quest\u003c\/li\u003e\n\u003cli\u003eNissan Villager\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is specifically designed to replace worn or damaged idler pulleys in the accessory drive belt system, helping to maintain optimal belt tension and prevent slippage or noise.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by Dayco 89172\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates belt slippage caused by worn idler pulleys\u003c\/li\u003e\n\u003cli\u003eReduces noise from misaligned or damaged pulleys\u003c\/li\u003e\n\u003cli\u003ePrevents premature serpentine belt wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper belt tension for accessory components\u003c\/li\u003e\n\u003cli\u003eImproves overall accessory drive system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dayco 89172 idler pulley, ensure the serpentine belt is properly routed according to the vehicle’s belt diagram. Use appropriate tools to remove the old pulley and avoid damaging the belt or surrounding components. Verify the bearing rotates smoothly before installation. After installation, double-check belt tension and alignment to prevent operational issues.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the 89172 idler pulley to meet OEM specifications, ensuring compatibility and durability. The steel construction and precision bearings contribute to long service life. While specific warranty details may vary, Dayco products typically come with a limited warranty against defects in materials and workmanship, providing confidence in product reliability for Mercury Quest and Nissan Villager owners.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391586369717,"sku":"BCWL-89172","price":41.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_89172_Fro.jpg?v=1774728863","url":"https:\/\/www.partcatalog.com\/products\/dayco-89172-accessory-drive-belt-idler-pulley","provider":"PartCatalog","version":"1.0","type":"link"}