This Evan-Fischer accessory belt idler pulley is a direct replacement for a bunch of VW models, and it fits on either the driver or passenger side, upper position.
If you've got a squealing belt or notice some wear, this might be the fix.

It's a smooth pulley, meaning no grooves, with an outside diameter of 2.56 inches and an inside diameter of 0.67 inches.

The part numbers it crosses to are 89161, 36106, 231161, 419597, 252822G000, and 4627039AA, among others.

It's built to be a direct bolt-on, so no modifications needed.

Plus, it comes with a 1-year unlimited-mileage warranty, so they've got your back.

It ships fast, usually the same or next business day, and you've got 30 days to return it if something's off.

It's a solid, reliable part to keep your serpentine belt running smooth and quiet.
