2020 Peterbilt 389, PACCAR, MX-13, 455HP, Fuller 13 Speed Transmission, Sleeper 2020 Peterbilt 389, PACCAR, MX-13, 455HP, Fuller 13 Speed Transmission, Sleeper, , , Stock # 1134435 2020 Peterbilt 389, PACCAR, MX-13, 455HP, Fuller 13 Speed Transmission, 72 inch Sleeper, Lots of Chrome, Light Kit on Sleeper and Air Cleaners, Two Tone Paint, Platinum Interior, Navigation, This is a must See Truck. Stock # 1134435; Suspension Type: Spring; Color: WHITE; Tire Size: 22.5; Transmission Speed: 13 Spd; Engine Model: MX-13; Wheel Base: 260; Rear Axle Capacity: 40000