Keep your Peterbilt 379 truck's windshield clear with this high-quality passenger side windshield wiper shaft assembly. This robust replacement part features durable metal construction designed specifically for the Peterbilt 379 model. The shaft assembly, identified by part number 18-03153, is engineered to provide smooth and reliable wiper operation in all weather conditions. This essential component ensures proper wiper arm movement and blade control, maintaining optimal windshield visibility for safe driving. The assembly includes the main shaft, mounting brackets, and necessary hardware for a proper fit. Direct replacement design makes installation straightforward while maintaining original equipment functionality. This wiper shaft is a critical component for maintaining your truck's safety systems and should be replaced if showing signs of wear or irregular operation.