07K 145 172B (Gates)

Description

Product Description

The 07K145172B Accessory Belt Idler Pulley by Gates is an OE‑quality replacement designed for select Volkswagen and Audi applications. The idler pulley guides the serpentine (accessory) belt and helps maintain proper belt routing and alignment, ensuring smooth, reliable operation of belt‑driven accessories such as the alternator and A/C compressor (depending on configuration).

Because the pulley spins whenever the engine runs, its sealed bearing is subject to constant load, heat, and contamination. When the bearing begins to wear, it can cause chirping or grinding noises, pulley wobble, belt flutter, and premature belt wear. Replacing the worn pulley with this Gates 07K145172B restores quiet operation and consistent belt tracking for dependable accessory drive performance.

• OEM reference: 07K 145 172B
• Brand: Gates – trusted OE supplier for belts and drive components
• High‑quality sealed bearing for smooth, quiet rotation
• OE‑spec pulley profile to maintain correct belt alignment and tracking
• Helps reduce belt squeal, vibration, and uneven belt wear
• Direct‑fit replacement; no modifications required

Applications

Used on select VW/Audi models that specify idler pulley part number 07K145172B.

(Fitment varies by engine code and accessory layout—confirm by VIN or parts catalog.)

Service Notes

• Inspect and replace the serpentine belt if it’s cracked, glazed, or frayed.
• Check the belt tensioner and other pulleys for noise or play to prevent repeat failures.
• Verify correct belt routing and full belt seating in all pulley grooves before starting the engine.

Additional information

No fitment data available.