{"product_id":"gates-t42139-engine-timing-belt-idler-pulley-upper","title":"Gates T42139 Engine Timing Belt Idler Pulley - Upper","description":"\u003ch2\u003eReliable Timing Belt Pulley for Audi and Volkswagen Vehicles\u003c\/h2\u003e\u003cp\u003eThe Gates Timing Belt Pulley T42139 is engineered to provide precise and consistent performance for your engine's valve train system. Designed specifically for select Audi and Volkswagen models, this steel idler pulley ensures smooth operation and durability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable steel for long-lasting strength\u003c\/li\u003e\n\u003cli\u003eInside diameter of 9 mm for accurate fitment\u003c\/li\u003e\n\u003cli\u003eWidth of 34 mm and outside diameter of 28.5 mm for optimal belt alignment\u003c\/li\u003e\n\u003cli\u003eSmooth backside contact surface to reduce wear on the timing belt\u003c\/li\u003e\n\u003cli\u003eFlanged end design: no flange, suitable for specific belt routing\u003c\/li\u003e\n\u003cli\u003eIncludes pulley and bolt for secure installation\u003c\/li\u003e\n\u003cli\u003eOE exact comparison rating for reliable replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Gates Timing Belt Pulley Product Line\u003c\/h2\u003e\u003cp\u003eThe Gates Timing Belt Pulley line focuses on precision-engineered components that maintain proper tension and alignment of timing belts in various engine configurations. The T42139 model is part of this line, offering a steel construction and exact OE comparison rating to meet the stringent requirements of Audi and Volkswagen engines.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis engine timing belt idler pulley is designed to fit Audi A3 and Volkswagen Beetle, Golf, and Jetta models. Its steel material provides the necessary rigidity and resistance to wear, while the smooth backside contact surface minimizes friction against the timing belt. The pulley measures 28.5 mm in outside diameter and 34 mm in width, with a 9 mm inside diameter, ensuring precise fitment and alignment within the valve train system. The absence of a flanged end suits specific belt routing paths in these vehicles. The included bolt facilitates secure mounting during installation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaintains proper timing belt tension and alignment\u003c\/li\u003e\n\u003cli\u003ePrevents premature belt wear caused by rough or damaged pulleys\u003c\/li\u003e\n\u003cli\u003eReduces engine noise related to timing belt misalignment\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine timing errors that can lead to performance issues\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged idler pulleys in Audi A3 and Volkswagen Beetle, Golf, and Jetta\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the engine is cool before beginning installation. Verify compatibility with your specific Audi or Volkswagen model year and engine type. Use the included bolt to securely fasten the pulley, and check belt tension after installation to prevent slippage or misalignment. It is recommended to inspect the entire timing belt system during replacement to identify any additional worn components.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Gates Timing Belt Pulley T42139 meets OE exact comparison standards, ensuring it matches original equipment specifications for fit and function. Gates products are manufactured under strict quality controls to provide reliable performance. Please refer to Gates' official warranty policy for detailed coverage information.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":52135929479349,"sku":"BBSC-T42139","price":64.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_T42139_Ang.jpg?v=1775231700","url":"https:\/\/www.partcatalog.com\/products\/gates-t42139-engine-timing-belt-idler-pulley-upper","provider":"PartCatalog","version":"1.0","type":"link"}