Belt Tensioner – 07k 903 315S (Gates)

Description

Product Description

The 07K903315S Belt Tensioner by Gates is an OE‑quality accessory drive tensioner designed for select Volkswagen and Audi applications. The tensioner maintains the correct serpentine belt tension as the engine runs, compensating for belt stretch and vibration to keep the belt tracking properly and driving critical accessories such as the alternator and A/C compressor.

A worn tensioner can develop weak spring force, a noisy bearing, or pulley wobble. This may cause belt squeal, erratic belt tracking, premature belt wear, or even belt loss. Replacing the tensioner with a new Gates 07K903315S helps restore proper belt tension, reduce noise, and improve the reliability of the entire accessory drive system.

• OEM reference: 07K 903 315S
• Brand: Gates – trusted OE supplier for belt drive components
• Maintains correct belt tension for consistent accessory operation
• High‑quality pulley bearing for quiet, smooth rotation
• Durable spring mechanism designed to handle heat and engine vibration
• Direct‑fit replacement for quick installation and proper alignment

Applications

Used on select VW/Audi models that specify belt tensioner part number 07K903315S.

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

Service Notes

• It’s often best practice to replace the belt when replacing the tensioner.
• Inspect idler pulleys and other belt-driven components for noise or play.
• Verify belt routing and alignment before starting the engine.

Cross Reference

• 07K 903 315F
• 07K 903 315H
• 07K 903 315M
• 07K 903 315S

Additional information

No fitment data available.