2015 Peterbilt 579 driver side wiper blade size: 22
2015 Peterbilt 579 passenger side wiper blade size: 22
2014 Peterbilt 579 driver side wiper blade size: 22
2014 Peterbilt 579 passenger side wiper blade size: 22
2013 Peterbilt 579 driver side wiper blade size: 22
2013 Peterbilt 579 passenger side wiper blade size: 22
