2003 GMC Sierra 3500 2WD Parts Specifications for Engine and Transmission
-2003 GMC Sierra Trims
2WD Crew Cab SLE
2WD Crew Cab Standard
2WD Extended Cab SLE
2WD Extended Cab Standard
Engine Displacement
6.0 L
6.0 L
6.0 L
6.0 L
Horsepower (HP)
300 hp
300 hp
300 hp
300 hp
Torque (lb-ft)
360 lb-ft
360 lb-ft
360 lb-ft
360 lb-ft
Tank capacity
35 gal
35 gal
34 gal
34 gal
Transmission
4-Speed Automatic
4-Speed Automatic
4-Speed Automatic
4-Speed Automatic