* Alternator: Generates electricity for the vehicle's electrical system.
* Power Steering Pump: Assists in steering the vehicle.
* Air Conditioning Compressor: Compresses refrigerant for the air conditioning system.
* Water Pump: Circulates coolant through the engine to prevent overheating.
* Idler Pulley(s): Provides support and changes the direction of the belt. There are usually at least one, sometimes two or more.
* Tensioner Pulley: Keeps the belt taut. This is often combined with an idler pulley.
It's important to note that some components might have their own drive, but the serpentine belt is the main drive for the listed components above on this particular vehicle. Always consult your owner's manual for the most accurate information specific to your truck.