Gates T41238 Engine Timing Belt Idler Pulley - Left

Gates T41238 Timing Belt Idler Pulley

The Gates T41238 is an engine timing belt idler pulley built with a steel body and a smooth backside contact surface. It is an OE Exact replacement for applications that require precise belt routing and stable timing belt operation.

Gates PowerGrip idler pulleys are offered as fixed idlers or as replacements for tensioner bracket applications, with metallic or plastic construction depending on the part. This Gates timing belt pulley is part of the PowerGrip line and is engineered for direct-fit service on select Volkswagen and Audi engines.

Key Features

• Steel construction for durable timing system service
• Smooth/backside contact surface for backside belt routing
• OE Exact comparison rating for factory-style fit and function
• Inside diameter: 10 mm
• Outside diameter: 80 mm
• Width: 34.2 mm
• Non-flanged design
• Fits select 2010-2014 Volkswagen Golf, left
• Fits select 2009-2014 Volkswagen Jetta, left
• Fits select 2013-2014 Volkswagen Beetle, left
• Fits select 2010-2013 Audi A3, left

Detailed Description

Gates T41238 timing belt idler pulley is a direct replacement component for the engine valve train system. It is designed for vehicles that use a smooth backside idler pulley in the timing belt path, helping maintain proper belt tracking and consistent tension across the timing drive. This part cross-references OE number 03G109244 for the same application.

Compatible With 2013-2014 Volkswagen Beetle, left; 2010-2014 Volkswagen Golf, left; 2009-2014 Volkswagen Jetta, left; and 2010-2013 Audi A3, left. Search terms such as Volkswagen Golf timing belt idler pulley left side, Volkswagen Jetta engine timing belt pulley, and Audi A3 timing belt pulley replacement apply to this part number, Gates T41238.

Common Problems This Part Can Address

• Timing belt noise from a worn idler pulley bearing
• Belt tracking issues caused by pulley wear or surface damage
• Uneven timing belt movement from a failing smooth idler
• Service replacement for a damaged OE timing belt pulley
• Restoration of proper timing belt routing in the engine valve train

Installation Notes and Tips

Verify engine code and left-side fitment before installation, especially on interference-engine applications. Inspect the timing belt, tensioner, and related pulleys during service, and replace any worn components at the same time to maintain proper timing system operation. Confirm pulley alignment and torque fasteners to the vehicle manufacturer’s specifications.

Quality Assurance

Gates PowerGrip components are built for timing system service and this pulley carries an OE Exact comparison rating for factory-style replacement. Gates T41238 is intended for direct-fit use in the listed Volkswagen and Audi applications.