2024 Peterbilt 579, Cab Height: , Cummins, X15, 500HP, Fuller 12 Speed Transmission, Sleeper, , , Stock # 1705340 2024 Peterbilt 579, Cummins, X15 @500HP, Fuller 12 Speed Automated Transmission, 44" Flat Top Sleeper, Low Low Air Leaf Suspension, 22.5 LP Tires, Factory Split tank for wet Kit Application, 226" WB, 3.36 Ratio.