How Often Should the Tensioner Pulley Be Replaced?

1 Answers
Cole
07/29/25 4:14am
The tensioner pulley is generally replaced every 2 to 3 years or after driving approximately 60,000 to 70,000 kilometers. It is usually replaced along with the timing belt. The tensioner pulley is a belt tensioning device used in the automotive transmission system, mainly composed of a fixed housing, tensioning arm, pulley body, torsion spring, rolling bearing, and spring sleeve. It can automatically adjust the tension according to the belt's varying tightness, ensuring a stable, safe, and reliable transmission system. The tensioner pulley is a wear-prone component in automotive parts. Over time, the belt can easily stretch. Additionally, the tensioner pulley makes the belt run more smoothly, reduces noise, and prevents slippage.
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