If those new wiper blades aren't properly clearing the windshield of your Peterbilt 379, it could be a problem with the windshield wiper arm. Replace it with Dorman's quality constructed and "try on" tested windshield wiper arm. Value priced and built to last.
Includes wiper arm and spray nozzle
14-Inches long with hook style wiper end
Durable enamel paint resists fading and peeling
High-tensile strength spring rate maintains proper wiper blade to glass contact
Bolt on, steel construction for easy installation and lasting performance