If your factory serpentine belt is squealing more than usual, then it could be because of age, mileage, and it could be showing sign of wear. If your belt is cracked, or missing ribbed sections, then it may be time for a replacement. The Gates RPM Micro-V Belt is a great OEM direct replacement serpentine belt fabricated from high-grade fibers that can handle many types of pulleys. These belts have been designed to exceed OEM build quality to provide you with a reliable belt that will deliver years of service. They have a shorter profile to provide extra flexibility along with reduced heat buildup which allows them to operate at higher speeds on smaller diameter sheaves