The DAYCO 1.1" x 93.3" poly rib heavy duty serpentine belt for PACCAR is engineered to effectively minimize noise and vibration during operation. Its heat-resistant construction provides dependable performance even in high-temperature environments. This serpentine belt supports efficient load distribution, contributing to smoother engine function. Its premium poly rib design reduces wear. The belt is specifically tailored to fit PACCAR engines, ensuring perfect compatibility for optimal operation.