Dayco 89247 No Slack Automatic Belt Tensioner

Dayco 89247 No Slack Automatic Belt Tensioner is an automatic belt tensioner designed to keep the serpentine belt properly tensioned in automotive engine drive systems. Identified by the part number 89247, this Dayco component uses an automatic tensioning mechanism to minimize belt slack and prevent belt slip as the engine runs. By maintaining consistent belt tension, it helps stabilize the drive of accessories such as the alternator, power steering pump, and air conditioning compressor in compatible applications. The “No Slack” designation highlights its focus on reducing belt slack during operation, contributing to smoother belt operation and reduced wear on the belt path. As a Dayco tensioner, it represents the brand’s serpentine belt drive solutions with mounting considerations typical of Dayco tensioners. When selecting this part, verify that Dayco 89247 matches the intended vehicle’s belt drive specifications and mounting configuration to ensure proper fit and performance.