This Chevrolet Silverado 2500HD delivers a Gas V8 6.6L/ engine powering this Automatic transmission. ENGINE, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp 299 kW @ 5200 rpm, 464 lb-ft of torque 629 N-m @ 4000 rpm) (STD), Wireless phone projection for Apple CarPlay and Android Auto, Windows, power rear, express down.* This Chevrolet Silverado 2500HD Features the Following Options *Window, power front, passenger express down, Window, power front, drivers express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 20" (50.8 cm) machined aluminum with Grazen Metallic painted accents, 10-spoke, USB Ports, 2, Charge/Data ports located on instrument panel, Transmission, 10-Speed automatic (Standard with (L8T) 6.6L V8 gas engine.), Transfer case, two-speed electronic shift with push button controls (Requires 4WD models.), Trailer brake controller, integrated, Tires, LT275/65R20 all-terrain, blackwall, Tire, spare LT275/70R18 all-terrain, blackwall.