This multi-ribbed belt drives the engine cooling fan and coolant pump from the crankshaft pulley. It sits in the front accessory drive system, maintaining tension across the pulleys to keep the fan and pump at the correct operating speed. A slipping or worn belt causes the engine to overheat, as the fan and pump lose rotational speed. The belt is manufactured by Gates, whose tooling matches the original pulley groove profile and pitch length, so it seats correctly without requiring a different tensioner setting. On installation, verify the belt rides fully in each pulley groove and adjust the tensioner to the specified deflection.