Gates T41079 Engine Timing Belt Idler Pulley

Gates Timing Belt Idler Pulley T41079

The Gates T41079 timing belt idler pulley is built for engine timing systems that require a smooth backside contact surface and stable belt tracking. With steel construction and a flanged end, it is a direct-fit timing belt pulley choice for select Volkswagen, Audi, Porsche, Dodge, and Plymouth applications.

Gates PowerGrip idler pulleys are offered as fixed idlers or as replacements for tensioner bracket assemblies, depending on the application. This timing belt pulley follows that product-line approach with a steel body and OE-style dimensions for service on interference-engine vehicles.

Key Features

• Part number: T41079
• Engine timing belt idler pulley with smooth/backside contact surface
• Steel construction for timing system service
• Flanged end for belt alignment support
• Outside diameter: 72 mm
• Inside diameter: 10.3 mm
• Width: 25.4 mm
• Contents: pulley, nut, stud, washer

Detailed Description

Use the Gates T41079 when replacing a worn or noisy timing belt idler pulley in interference-engine applications. The smooth backside surface is intended for timing belt routing where the belt rides on the back of the pulley, while the flanged design helps maintain belt position during operation. This part number is commonly referenced for Volkswagen Golf, Volkswagen Jetta, and Volkswagen Cabrio service, along with other listed import applications.

This part cross-references Dayco 84019 for the same application. It also matches a wide range of interchange references used across timing belt service catalogs, including OE-style replacement listings for Volkswagen and Audi engine repair.

What It Helps Fix

• Timing belt noise caused by a worn idler pulley bearing
• Belt tracking issues from a damaged or uneven pulley surface
• Service needs on interference engines during timing belt replacement
• Excess play or rough rotation in the timing belt path
• Fitment-related replacement needs on Volkswagen Golf, Jetta, and Cabrio timing systems

Installation Notes

Verify engine code, belt routing, and pulley dimensions before installation. This timing belt pulley is used in applications with a smooth backside belt contact, so confirm the belt path matches the original design. Because the listed vehicles include interference engines, timing service should be performed with careful alignment of camshaft and crankshaft timing marks. Fits 2000-2009 Volkswagen Derby, N/A; Fits 1995-1997 Volkswagen Derby, N/A; Fits 1998-2008 Volkswagen Pointer, N/A; Fits 2000 Volkswagen Golf, N/A; Fits 1999 Volkswagen Golf, N/A; Fits 1999 Volkswagen Jetta, N/A; Fits 1996-1998 Volkswagen Cabrio, N/A; Fits 1985-1998 Volkswagen Golf, N/A; Fits 1997-1998 Volkswagen Golf, N/A; Fits 1997-1998 Volkswagen Jetta, N/A; Fits 1980-1996 Volkswagen Jetta, N/A; Fits 1991-1996 Volkswagen Passat, N/A; Fits 1995 Volkswagen Cabrio, N/A; Fits 1985-1993 Volkswagen Cabriolet, N/A; Fits 1987-1993 Volkswagen Fox, N/A; Fits 1990-1992 Volkswagen Corrado, N/A; Fits 1988-1990 Audi 80, N/A; Fits 1988 Audi 90, N/A; Fits 1980-1987 Audi 4000, N/A; Fits 1985 Volkswagen Quantum, N/A; Fits 1982-1983 Volkswagen Quantum, N/A; Fits 1980-1984 Volkswagen Rabbit Convertible, N/A; Fits 1983 Dodge Charger, N/A; Fits 1983 Plymouth Turismo, N/A; Fits 1980-1983 Volkswagen Rabbit Pickup, N/A; Fits 1980-1982 Plymouth TC3, N/A; Fits 1977-1982 Porsche 924, N/A.

Quality Assurance

Gates timing components are engineered for timing system service and are widely used in OE-style replacement applications. The T41079 is built to match the listed dimensions and contact style for the specified vehicles and engine configurations.