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2003 GMC Truck Sierra 3500 Regular Cab
The 2003 Sierra 3500 Regular Cab is a 2-door, 3-passenger full size pickup, available in two trims, the Standard Long Box 4WD and the SLE Long Box 4WD. The 2003 Sierra 3500 Regular Cab's closest competitors include the Chevrolet Silverado 2500HD Extended Cab, the Dodge Ram 3500 Regular Cab 4X4, and the Ford F-350 SD SuperCab 4x4.
Upon introduction, both trims are equipped with a standard 6.0-liter, V8, 300-horsepower engine. A 5-speed manual transmission with overdrive is standard, and a 4-speed automatic transmission with overdrive is optional.
The 2003 Sierra 3500 Regular Cab is freshened for 2003.
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