HANGZHOU AIX AUTOPARTS CO.,LTD.
HANGZHOU AIX AUTOPARTS CO.,LTD.
What is a belt tensioner?
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What is a belt tensioner? What is a belt tensioner?

A Drive Belt Tensioner is a pulley mounted to either a spring mechanism or to an adjustable pivot point that is used to keep constant tension on the serpentine belt. That is the big long belt in the front of the vehicle engine.
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