{"product_id":"dayco-89170-accessory-drive-belt-idler-pulley","title":"Dayco 89170 Accessory Drive Belt Idler Pulley - Grooved Pulley","description":"\u003ch2\u003eOverview of Dayco Accessory Drive Belt Idler Pulley 89170\u003c\/h2\u003e\u003cp\u003eThe Dayco 89170 accessory drive belt idler pulley is engineered for reliable performance in Chevrolet and GMC trucks and SUVs. Designed with durable steel construction and precise specifications, this pulley supports serpentine belt systems on various models including Silverado, Sierra, Tahoe, and Yukon.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-strength steel for durability\u003c\/li\u003e\n\u003cli\u003eCompatible with serpentine belt systems featuring 6 grooves\u003c\/li\u003e\n\u003cli\u003eBearing inner diameter of 12 mm and bearing width of 12 mm\u003c\/li\u003e\n\u003cli\u003eSupports maximum belt width of 6 ribs\u003c\/li\u003e\n\u003cli\u003eSingle bearing design for smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dayco 89170 idler pulley is a critical component in the accessory drive belt system, designed to maintain proper tension and alignment of the serpentine belt. Its steel material ensures resistance to wear and heat, essential for heavy-duty applications found in Chevrolet C1500, K2500, GMC Sierra 2500 HD, and other compatible models. The pulley features six grooves to accommodate serpentine belts with up to six ribs, ensuring optimal belt tracking and reduced slippage. The bearing specifications, including a 12 mm inner diameter and 12 mm width, provide smooth rotation and long service life under demanding conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis idler pulley is compatible with a range of Chevrolet and GMC vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Silverado 2500 HD and 3500 Classic\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 HD and 3500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe and Suburban models\u003c\/li\u003e\n\u003cli\u003eGMC Yukon and Savana 2500\/3500 vans\u003c\/li\u003e\n\u003cli\u003eChevrolet Express 2500 and 3500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by Dayco 89170 Idler Pulley\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates belt misalignment and slipping in serpentine belt systems\u003c\/li\u003e\n\u003cli\u003eReduces noise caused by worn or damaged pulleys\u003c\/li\u003e\n\u003cli\u003ePrevents premature belt wear due to improper tension\u003c\/li\u003e\n\u003cli\u003eSupports smooth operation of accessory components like alternators and power steering pumps\u003c\/li\u003e\n\u003cli\u003eHelps avoid overheating caused by belt failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the serpentine belt is properly routed before installing the idler pulley\u003c\/li\u003e\n\u003cli\u003eCheck the bearing for smooth rotation and absence of play before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate torque specifications for mounting bolts to avoid damage\u003c\/li\u003e\n\u003cli\u003eInspect the belt for wear and replace if necessary during installation\u003c\/li\u003e\n\u003cli\u003eConsult vehicle-specific service manuals for detailed installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDayco manufactures the 89170 idler pulley to meet or exceed OEM standards for fit, form, and function. The steel construction and precision bearings contribute to reliable performance in demanding automotive environments. While specific warranty details may vary, Dayco typically offers coverage against defects in materials and workmanship, providing confidence in the product's durability and longevity.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43391585353909,"sku":"BCWL-89170","price":49.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_89170_Fro.jpg?v=1774728863","url":"https:\/\/www.partcatalog.com\/products\/dayco-89170-accessory-drive-belt-idler-pulley","provider":"PartCatalog","version":"1.0","type":"link"}