CUMMINS ISX DIESEL ENGINE, TANDEM AXLES, A/C-HEAT, 13 SPEED TRANSMISSION, HENDRICKSON AIR RIDE SUSPENSION, 11R24.5 TIRES, 40,000LB REARS, 13,200 ON FRONT, AIR SLIDE 5TH WHEEL, SHOWING 303,181 MILES, VIN 1XKWD49X7BJ280409