2003 GMC Sierra 1500 Extended Cab Specs, Features & Options
Here's everything you need to know about each trim in the 2003 GMC Sierra 1500 Extended Cab lineup. Compare pricing, specs, key features and more.
1 of 8  Sierra 1500 Extended Cab Work Truck Pickup 4D 6 1/2 ft | 2 of 8 Sierra 1500 Extended Cab SLE Pickup 4D 8 ft | 3 of 8 Sierra 1500 Extended Cab Pickup 4D 8 ft | 4 of 8 Sierra 1500 Extended Cab Pickup 4D 6 1/2 ft | 5 of 8 Sierra 1500 Extended Cab SLT Pickup 4D 8 ft | 6 of 8 Sierra 1500 Extended Cab SLE Pickup 4D 6 1/2 ft | 7 of 8 Sierra 1500 Extended Cab SLT Pickup 4D 6 1/2 ft | 8 of 8  Sierra 1500 Extended Cab Denali Pickup 4D 6 1/2 ft | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Fair Market Price | $5,068 | $6,272 | $6,766 | $6,987 | $7,703 | $7,795 | $8,577 | $8,853 | ||
| Fuel Economy | City 14/Hwy 19/Comb 16 MPG | City 13/Hwy 17/Comb 15 MPG | City 13/Hwy 16/Comb 14 MPG | City 13/Hwy 16/Comb 14 MPG | City 13/Hwy 16/Comb 14 MPG | City 13/Hwy 16/Comb 14 MPG | City 13/Hwy 16/Comb 14 MPG | City 11/Hwy 15/Comb 13 MPG | ||
| Fuel Type | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | ||
| Horsepower | 200 @ 4600 RPM | 285 @ 5200 RPM | 285 @ 5200 RPM | 285 @ 5200 RPM | 285 @ 5200 RPM | 285 @ 5200 RPM | 285 @ 5200 RPM | 325 @ 5000 RPM | ||
| Torque | 260 lb-ft | 325 lb-ft | 325 lb-ft | 325 lb-ft | 325 lb-ft | 325 lb-ft | 325 lb-ft | 370 lb-ft | ||
| Towing Capacity | 8,100 lbs | 8,700 lbs | 8,700 lbs | 8,800 lbs | 8,700 lbs | 8,800 lbs | 8,800 lbs | 10,000 lbs | ||
| Payload | 1,652 pounds | 1,303 pounds | 1,590 pounds | 1,652 pounds | 1,303 pounds | 1,481 pounds | 1,481 pounds | 1,787 pounds | ||
| Body Styles | Pickup | Pickup | Pickup | Pickup | Pickup | Pickup | Pickup | Pickup | ||
| Engine | V6, 4.3 Liter | V8, 5.3 Liter | V8, 5.3 Liter | V8, 5.3 Liter | V8, 5.3 Liter | V8, 5.3 Liter | V8, 5.3 Liter | V8, 6.0 Liter | ||
| Curb Weight | 4,548 pounds | 4,810 pounds | 4,810 pounds | 4,548 pounds | 4,810 pounds | 4,548 pounds | 4,548 pounds | 5,013 pounds |
| Emergency & Security Services | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard | ||
| Child Seat Anchors | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | ||
| Child Door Locks | Not available | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| Cruise Control | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard | ||
| Navigation System | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Optional | ||
| Hands Free Phone | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard |
| Cruise Control | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard |
| Torque | 260 @ 4600 RPM | 325 @ 5200 RPM | 325 @ 5200 RPM | 325 @ 5200 RPM | 325 @ 5200 RPM | 325 @ 5200 RPM | 325 @ 5200 RPM | 370 @ 5000 RPM |
| Leather Seats | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard | ||
| Dual Power Front Seats | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard | ||
| Power Driver's Seat | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard |
| Power Windows | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard | ||
| Tilt Steering Wheel | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
| Alloy Wheels | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Standard |
| Drivetrain | 2WD | 2WD | 4WD | 4WD | 4WD | 4WD | 4WD | AWD | ||
| Recommended Fuel | Regular | Regular | Regular | Regular | Regular | Regular | Regular | Regular | ||
| Transmission Type | Automatic | Automatic | Automatic | Automatic | Automatic | Automatic | Automatic | Automatic |
| Bed Length | 6.5 feet | 8 feet | 8 feet | 6.5 feet | 8 feet | 6.5 feet | 6.5 feet | 6.5 feet | ||
| Curb Weight | 4548 pounds | 4810 pounds | 4810 pounds | 4548 pounds | 4810 pounds | 4548 pounds | 4548 pounds | 5013 pounds | ||
| Fuel Capacity | 26 gallons | 34 gallons | 34 gallons | 26 gallons | 34 gallons | 26 gallons | 26 gallons | 26 gallons | ||
| Front Head Room | 41 inches | 41 inches | 41 inches | 41 inches | 41 inches | 41 inches | 41 inches | 41 inches | ||
| Front Leg Room | 41.3 inches | 41.3 inches | 41.3 inches | 41.3 inches | 41.3 inches | 41.3 inches | 41.3 inches | 41.3 inches | ||
| Minimum Ground Clearance | 8 inches | 8 inches | 8 inches | 8 inches | 8 inches | 8 inches | 8 inches | Not Available | ||
| Overall Length | 227.7 inches | 246.6 inches | 246.6 inches | 227.7 inches | 246.6 inches | 227.7 inches | 227.7 inches | 227.7 inches | ||
| Payload Capacity | 1652 pounds | 1303 pounds | 1590 pounds | 1652 pounds | 1303 pounds | 1481 pounds | 1481 pounds | 1787 pounds | ||
| Front Shoulder Room | 65.2 inches | 65.2 inches | 65.2 inches | 65.2 inches | 65.2 inches | 65.2 inches | 65.2 inches | 65.2 inches | ||
| Truck Bed Volume | 57 feet | 71 feet | 71 feet | 57 feet | 71 feet | 57 feet | 57 feet | Not Available | ||
| Turning Diameter | 45.3 feet | 50.4 feet | 50.4 feet | 45.3 feet | 50.4 feet | 45.3 feet | 45.3 feet | 37.4 feet | ||
| Wheel Base | 143.5 inches | 157.5 inches | 157.5 inches | 143.5 inches | 157.5 inches | 143.5 inches | 143.5 inches | 143.5 inches | ||
| Width with mirrors | 83.5 inches | 83.5 inches | 83.5 inches | 83.5 inches | 83.5 inches | 83.5 inches | 83.5 inches | 83.5 inches |
FAQs
Does the 2003 GMC Sierra 1500 Extended Cab have a turbo?
No, the 2003 Sierra 1500 Extended Cab does not have any trim packages that offer a turbo engine at this time. For a more detailed look at the 2003 Sierra 1500 Extended Cab specs, features and options check out Kelley Blue Book's 2003 GMC Sierra 1500 Extended Cab specs page.
Is the GMC Sierra 1500 Extended Cab underpowered?
It depends on your definition of underpowered. The 2003 Sierra 1500 Extended Cab ranges in power from the Work Truck Pickup 4D 6 1/2 ft with 200 horsepower to the Denali Pickup 4D 6 1/2 ft with 325 horsepower. For a more detailed look at the 2003 Sierra 1500 Extended Cab specs, features and options check out Kelley Blue Book's 2003 GMC Sierra 1500 Extended Cab specs page.
How much horsepower does a 2003 Sierra 1500 Extended Cab have?
The 2003 Sierra 1500 Extended Cab ranges in power from the Work Truck Pickup 4D 6 1/2 ft with 200 horsepower to the Denali Pickup 4D 6 1/2 ft with 325 horsepower. For a more detailed look at the 2003 Sierra 1500 Extended Cab specs, features and options check out Kelley Blue Book's 2003 GMC Sierra 1500 Extended Cab specs page.
All 2003 GMC Sierra 1500 Extended Cab Trims and Styles
- 2003 GMC Sierra 1500 Extended Cab Work Truck Pickup 4D 6 1/2 Ft
- 2003 GMC Sierra 1500 Extended Cab SLE Pickup 4D 8 Ft
- 2003 GMC Sierra 1500 Extended Cab Pickup 4D 8 Ft
- 2003 GMC Sierra 1500 Extended Cab Pickup 4D 6 1/2 Ft
- 2003 GMC Sierra 1500 Extended Cab SLT Pickup 4D 8 Ft
- 2003 GMC Sierra 1500 Extended Cab SLE Pickup 4D 6 1/2 Ft
- 2003 GMC Sierra 1500 Extended Cab SLT Pickup 4D 6 1/2 Ft
- 2003 GMC Sierra 1500 Extended Cab Denali Pickup 4D 6 1/2 Ft
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