13L Volvo Engine, 455HP, I-Shift, With Engine Brake, Hill Start Assist, Manual Main Shut Off, 13,200 Front Axle Weight, 40,000 Rear Axle Weight, 150 Gal Left Side And 100 Gal Ride Side Fuel, Full Cab Fairings With Visor, Hood MDT Mirrors Both Sides, Wide Angle Mirrors Both Sides, Cab Parking Heater,