The 2003 GMC Sierra Denali is considered the flagship of the Sierra line-up. It’s offered in one trim level – the Extended Cab – with an advanced all time AWD system. Under the hood, the Sierra Denali boasts a 325 horsepower 6.0-liter gas-powered V8 that generates 370 lbs-ft of torque mated to a 4-speed overdrive-enabled automatic transmission. In addition to luxury leather upholstery and a state-of-the-art Bose sound system, the Denali comes equipped with heated lumbar seats, dual zone climate control, keyless entry, power accessories and ABS brakes.
Select a 2003 GMC Sierra Denali model/trim package