2024 Peterbilt 520, PACCAR, PX-9, 360HP, Allison 6 Speed Transmission, Day Cab, , , Stock # 1679057 ON THE GROUND and IN STOCK, New 2024 Peterbilt 520 Cab Chassis with Dual Seated Drive. 215" Wheelbase and Cab to Axle with 120" Overhang. 66,000 lbs GVW. PX9 360 HP 1150 TQ Engine with Allison 4500RDSP Transmission