High-Performance Heavy-Duty Serpentine Belt The PPE High-Performance Heavy-Duty Serpentine Drive Belt provides reliability and durability to your vehicle, stock or modified, street or racing, domestic or imported. Each belt is precisely manufactured to the specified length for a seamless installation. The premium rubber material enables prolonged belt life and outstanding resistance to engine heat and cracking. The aramid fiber embedded in the belt prevents belt stretching even under high-load operations while reducing belt noise and vibration at the same time. NOTE:  6-Rib, 74.8’’/1900mm Belt Effective Length Verify the belt’s effective length and V-rib profile before purchasing. OEM P/N for reference: GM 55490583