This Chevrolet Silverado 3500HD CC delivers a Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. WT CONVENIENCE PACKAGE includes (AKO) tinted windows, (C49) rear-window defogger and (DBG) power trailer mirrors with heated upper glass and manual extending/folding, WORK TRUCK PREFERRED EQUIPMENT GROUP includes standard equipment, WINTER GRILLE COVER.*This Chevrolet Silverado 3500HD CC Comes Equipped with These Options *SNOW PLOW PREP PACKAGE includes (KW5) 220-amp alternator, includes increased front GAWR on Heavy Duty models, (NZZ) skid plates (transfer case and oil pan), pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance , USB PORTS, REAR, DUAL, CHARGE-ONLY, UPFITTER SWITCH KIT, (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com., TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, TIRES, LT235/80R17E ALL-TERRAIN, BLACKWALL (STD), SUMMIT WHITE, SPARE TIRE DELETE, SKID PLATES protect the oil pan, front axle and transfer case, SEATS, FRONT 40/20/40 SPLIT-BENCH with covered armrest storage and under-seat storage (lockable) (STD), REAR CAMERA KIT. Kit includes camera, fixed position bracket & 19 ft cable with attachment clips. Rear camera radio calibration provided from the factory. See Upfitter Integration Bulletin for installation instructions at www.gmupfitter.com.