Gates T42044 Engine Timing Belt Idler Pulley - Injection Pump Idler Pulley or Upper

Gates Timing Belt Idler Pulley T42044

The Gates T42044 is an engine timing belt idler pulley built with a steel body and a smooth backside contact surface. It is used in upper timing belt and injection pump idler pulley locations across select Audi and Volkswagen applications, including Audi A3, Audi Q3, Volkswagen Jetta, and Volkswagen Golf.

Key Features

• Steel construction for timing system durability
• Smooth/backside contact surface for belt routing
• Inside diameter: 8
• Outside diameter: 28
• Width: 29
• Flanged end: No
• Contents: pulley only

Product Details

Gates PowerGrip idler pulleys are offered as fixed idlers or as replacements for a tensioner bracket, depending on the application. The T42044 follows that product-line approach with a smooth running surface and steel construction for use in timing belt systems where precise belt tracking matters. This part cross-references 03L109244D and 058109244 for the same application. The Gates T42044 is a direct-fit timing belt pulley for select Audi and Volkswagen engines, including upper timing positions and injection pump idler pulley locations.

Common Uses

• Replacing a worn or noisy timing belt idler pulley
• Restoring proper belt tracking in the timing system
• Addressing pulley wear that can affect belt alignment
• Servicing upper timing belt components on Audi A3, Audi Q3, and Volkswagen Jetta
• Maintaining timing system operation on Volkswagen Golf and Passat applications

Installation Notes

Verify the engine code, belt tooth count where noted, and pulley position before installation. This part is listed for upper and injection pump idler pulley locations, with some applications marked for interference engines. Confirm the vehicle’s timing belt service configuration before replacing the pulley, and inspect the belt, tensioner, and related components at the same time.

Quality Assurance

Gates PowerGrip timing components are engineered for timing belt service applications and built to meet the demands of engine valve train systems. Part number T42044 is specified for select Audi and Volkswagen fitments from 1997-2016.