2020 Peterbilt 579, PACCAR, MX-13, 455HP, Eaton Fuller 10 Spd Ultrashift Transmission, Day Cab, , , Stock # 1116277 Multiple matching units available. 2020 Peterbilt 579, PACCAR, MX-13, 455HP, Eaton Fuller 10 Speed Ultrashift Transmission, Day Cabs. Very well-maintained trucks with maintenance records. These trucks have fresh DOT's, Warranty and qualify for multiple finance programs. Call James (615) 881-9999 Upgrade your fleet to Pete!