A "serpentine belt" is a long, flexible belt that snakes around various engine parts in a car. It helps power important components like the alternator, air conditioning, and power steering. Full definition
Professional frame - off restoration, adjustable Air Ride suspension, 4 - wheel power disc brakes, power steering and windows, digital gauges, Vintage Air with serpentine belt system, 409ci engine with 4 - speed manual transmission, Offenhouser accessories. (barrett-jackson.com)
We are not looking at the failure of one specific serpentine belt tensioner. (humblemechanic.com)