This GMC Sierra 2500HD boasts a Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display (Includes (KSG) Adaptive Cruise Control., SUMMIT WHITE.*This GMC Sierra 2500HD Comes Equipped with These Options *GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness). , DENALI PREFERRED EQUIPMENT GROUP includes standard equipment, ATMOSPHERE/BROWNSTONE, FORGE PERFORATED LEATHER SEAT TRIM, Wireless phone projection for Apple CarPlay and Android Auto, Wireless Charging, Wipers, front rain-sensing, Windows, power rear, express down, Windows, power front, drivers express up/down, Window, power, rear sliding with rear defogger, Window, power front, passenger express up/down.*Know You're Making a Reliable Purchase *Carfax reports: No Accidents Reported, 15 Service Records.