455 HP Volvo D-13 engine with a 12-speed automatic I-Shift transmission. It includes a cold weather package with block heater and oil pan heat, an 18,000 lb. front axle, and a 40,000 lb. PRIMAXX rear suspension with disc brakes and locking differential. The 279" wheelbase chassis features a 125-gallon fuel tank and all-aluminum wheels. Inside, enjoy a driver’s X-5 high-back seat, leather-wrapped steering wheel, and storage-equipped passenger seat. The 21.5' heated Bibeau AR500 steel dump box comes with a high lift gate, vibrator, electric tarp, and three steerable pushers.