11281748131 - Tensioner Pulley & Brand car parts

The Tensioner Pulley (part number 11281748131) is a key component in a vehicle's serpentine belt system, designed to maintain proper tension on the belt. This ensures that various engine components, such as the alternator, power steering pump, and air conditioning compressor, operate efficiently. The pulley works with a spring-loaded tensioner arm to adjust the tension of the belt automatically.

Here’s a detailed description of its function and importance:

• Function: It keeps the serpentine belt tight and running smoothly by applying constant pressure. If the tension is too loose or too tight, it can cause belt slippage, premature wear, or damage to engine components.
• Construction: The pulley is typically made of durable materials like plastic or metal, designed to handle high temperatures and stress.
• Symptoms of Failure: If the tensioner pulley fails, you may hear squealing noises, experience belt misalignment, or see visible signs of wear on the pulley or belt.

Regular inspection and maintenance of the tensioner pulley are important for keeping your vehicle’s engine running smoothly and preventing costly repairs due to a broken or worn-out pulley.