059903341G Tensioner Pulley - replacement parts

The 059903341G Tensioner Pulley is a crucial component in a vehicle’s accessory drive system. It plays a vital role in maintaining proper tension in the serpentine belt, which drives various engine accessories like the alternator, air conditioning compressor, and power steering pump. Here’s a detailed description:

1. Function: The tensioner pulley helps maintain the correct tension in the serpentine belt, ensuring it runs smoothly without slipping. The belt needs consistent tension to drive engine accessories effectively, and the tensioner pulley works in conjunction with a spring-loaded tensioner to keep it taut.

2. Design: This pulley is typically made from durable materials like steel or plastic, and it often has a smooth, grooved surface to allow the belt to make proper contact. It is mounted on a spring-loaded tensioner assembly, which adjusts automatically to changes in belt tension as the belt wears or stretches over time.

3. Role in the System: The tensioner pulley works in conjunction with the belt tensioner, which is responsible for adjusting the tension of the belt as needed. As the engine operates, the pulley ensures that the belt remains under the proper amount of tension for optimal performance.

4. Symptoms of Failure: If the tensioner pulley wears out, you may notice several symptoms, including:

   • Squealing or chirping noises coming from the engine bay.
   • Erratic or unstable belt movement.
   • Loss of power to engine accessories.
   • Visible damage or wear on the pulley or serpentine belt.

5. Replacement: It’s crucial to replace a damaged or worn tensioner pulley as soon as possible to prevent further damage to the belt or other components in the accessory drive system. A malfunctioning pulley can lead to poor performance of various engine accessories and, in severe cases, may cause the serpentine belt to snap, which could result in engine damage.

The 059903341G Tensioner Pulley is typically used in certain Audi and Volkswagen models. As always, make sure to confirm its compatibility with your vehicle before replacement.

Detailed link: 059903341g