Explore full specifications of the GMC Sierra 2003 on VehicleInforCheck — including engine types, horsepower, torque, transmission, fuel economy, safety ratings, and trim level options. Whether you're researching a used GMC Sierra 2003 or comparing models, VehicleInforCheck offers accurate, verified vehicle data to help you make informed decisions.
GMC Sierra 2003 Specifications & Features
Select GMC Sierra 2003 type:
4.3 AT (200 hp) 4.3 AT (200 hp) 4.3 AT (200 hp) 4.3 AT (200 hp) 4.3 MT (200 hp) 4.3 MT (200 hp) 4.3 MT (200 hp) 4.3 MT (200 hp) 5.3 AT (288 hp) 5.3 AT (288 hp) 5.3 AT (288 hp) 5.3 AT (288 hp) 5.3 AT (288 hp) 5.3 AT (288 hp) 5.3 MT (288 hp) 5.3 MT (288 hp) 5.3 MT (288 hp) 5.3 MT (288 hp) 5.3 MT (288 hp) 5.3 MT (288 hp) 6.0 AT (323 hp) 6.0 AT (323 hp) 6.0 MT (323 hp) 6.0 MT (323 hp)
The GMC Sierra 2003 is a prime example of GMC engineering in 2003. With options ranging from base trims to high-performance variants, this model year includes diverse configurations suited for a variety of drivers. Get deep insights into technical specifications, trim equipment, 0-100 acceleration, curb weight, drivetrain layout, and more — all from trusted automotive data sources on VehicleInforCheck.