This toothed V-belt transmits power from the engine crankshaft to the driven accessory pulley in the drive system. It sits in the front engine accessory drive, routing around the alternator, water pump, or fan hub pulleys. The belt’s toothed profile prevents slip on the pulley grooves, maintaining consistent rotational speed to the driven component. A worn or glazed belt produces a squealing noise at startup or under load and can cause the driven accessory to underperform. The manufacturer’s construction matches the original belt’s tooth profile and pitch length, so it seats correctly in the pulley grooves without requiring tensioner adjustment beyond the standard range. On installation, inspect the pulley grooves for wear and replace the belt if it shows cracking on the backside or missing teeth.