A serpentine belt, which is also known as a multi-vee, poly-v or multi-rib belt, is much thinner than a drive belt in appearance. This belt is flat on one side and ribbed on the other. A serpentine belt lasts longer than traditional drive belts and is easier to install. This single and continuous belt transmit power between multiple accessories devices in an engine, such as an alternator, power steering pump, water pump, air conditioning compressor, etc.