{"product_id":"gates-39157-accessory-drive-belt-tensioner-assembly","title":"Gates 39157 Accessory Drive Belt Tensioner Assembly - Alternator","description":"\u003ch2\u003eOverview of Gates DriveAlign Premium OE Automatic Belt Tensioner\u003c\/h2\u003e\u003cp\u003eThe Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39157) is engineered for precise belt tension control in Volvo vehicles. Designed specifically for Volvo C30, C70, S40, and V50 models, this tensioner assembly ensures reliable accessory drive belt performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable thermoplastic material for long-lasting use\u003c\/li\u003e\n\u003cli\u003eSingle pulley design with a smooth backside contact surface\u003c\/li\u003e\n\u003cli\u003eCompatible with V-ribbed belt systems\u003c\/li\u003e\n\u003cli\u003eMounting hole quantity: 1 for straightforward installation\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.76 inches (70 mm) outside diameter, 0.81 inches (20.5 mm) width\u003c\/li\u003e\n\u003cli\u003eBearing bore inside diameter: 0.67 inches (17 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis accessory drive belt tensioner assembly from Gates features a thermoplastic construction that balances strength and weight. The pulley is designed without flanges and has a smooth backside contact surface, optimized for V-ribbed belts commonly used in Volvo accessory drive systems. The tensioner includes a single pulley with a 2.76-inch (70 mm) outside diameter and a width of 0.81 inches (20.5 mm), ensuring proper belt alignment and tension. The bearing bore inside diameter measures 0.67 inches (17 mm), providing compatibility with the specified mounting hardware. This part is an exact OE comparison, meeting original equipment specifications for fit and function.\u003c\/p\u003e\u003ch2\u003eAbout the DriveAlign Premium OE Automatic Belt Tensioner Line\u003c\/h2\u003e\u003cp\u003eThe DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering precise belt tension control with OE exact fitment. This line is designed to maintain optimal accessory drive belt tension automatically, reducing wear and improving belt life. The 39157 tensioner assembly is part of this line, offering reliable performance tailored for Volvo vehicles requiring V-ribbed belt systems.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaintains proper tension on accessory drive belts to prevent slippage\u003c\/li\u003e\n\u003cli\u003eReduces belt noise caused by improper tension\u003c\/li\u003e\n\u003cli\u003ePrevents premature belt wear and extends belt life\u003c\/li\u003e\n\u003cli\u003eEliminates vibration and misalignment in the belt drive system\u003c\/li\u003e\n\u003cli\u003eEnsures consistent performance of engine accessories such as alternators and power steering pumps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with Volvo C30, C70, S40, and V50 models before installation\u003c\/li\u003e\n\u003cli\u003eEnsure the mounting hole aligns correctly with the vehicle’s bracket\u003c\/li\u003e\n\u003cli\u003eInspect the V-ribbed belt for wear and replace if necessary during installation\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for mounting hardware\u003c\/li\u003e\n\u003cli\u003eCheck belt alignment after installation to avoid premature wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39157) is manufactured to meet OE standards, ensuring reliable fit and function. Gates provides quality assurance through rigorous testing and material selection. This part is backed by Gates’ warranty coverage, which protects against defects in materials and workmanship under normal use.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":43611094810805,"sku":"BBSC-39157","price":130.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_39157_Fro_e3e555af-e9bd-4a00-a2be-fa1c45f44d6b.jpg?v=1774983708","url":"https:\/\/www.partcatalog.com\/products\/gates-39157-accessory-drive-belt-tensioner-assembly","provider":"PartCatalog","version":"1.0","type":"link"}