Motor: Mack E7 4 valve elec 350 hp - inline injection pump Air to Air: Yes Air Conditioning: Not Working Transmission: Mack T2180B 13 speed PTO: air operated passenger side with air operated married hydraulic pump Wetline: to operate dump trailer Rear: Mack 44,000 lbs Ratio: 4.42 Power Divider: Yes Suspension: Camelback Rubber Bushing 44,000 lbs Tires: 11R22.5 Rims: 10 Bolt F/A 20" open T/A Length: 22‘5" Width: 8‘ Height: 9‘2" Odometer Reading: 693,204 Hour Meter Reading: 25,800 Wheelbase: 182" Cab to Axle: 100" Cab to End: 151" Weight: 17,440 lbs GVW: 56,000 lbs Added Details: runs well, single frame, air slide 5th wheel - can pull frameless