- Home
- Brands
GMC- Sierra 2500HD
- 2007 Sierra 2500HD III (GMT900) Extended Cab Long Box
GMC2007 GMC Sierra 2500HD III (GMT900) Extended Cab Long Box Dimensions, Size & Specs| Production | |
|---|---|
| Model Year: | 2007 |
| Production Years: | 2007 - 2010 discontinued in 2010 |
Precise measurements of the 2007 GMC Sierra 2500HD III Extended Cab Long Box, engineered for optimal performance and comfort
| Dimensions | |
|---|---|
| Length: | 6330 mm249.2 in20.8 ft |
| Width (Opened Mirrors): | 2436 mm95.9 in8.0 ft |
| Height: | 1930 mm76.0 in6.3 ft |
| Ground Clearance: | 243 mm9.6 in0.8 ft |
| Trunk Capacity (Max): | 2138 liter75.5 cu ft |
| Weight Specifications | |
| Curb Weight: | 2594 - 3036 kg5719 - 6693 lbs |
| Maximal permitted Weight: | 4173 kg9200 lbs |
| Tire Specifications | |
| Rims Sizes: | 6.5J x 16, 7.5J x 17 |
| Tire Sizes: | 245/75 R16 (W:245 | H:75 | D:16) 265/75 R17 (W:265 | H:75 | D:17) |
The GMC Sierra 2500HD III (GMT900) Extended Cab Long Box, produced from 2007 to 2010, is a robust heavy-duty pickup truck designed for both utility and comfort. Measuring an impressive 6330 mm (249.2 inches) in length and 2436 mm (95.9 inches) in width with mirrors extended, this model offers substantial road presence and functional space. The truck stands 1930 mm (75.98 inches) tall, providing a commanding driving position and ample cabin headroom.
Weighing between 2594 and 3036 kilograms (5720 to 6695 pounds), the Sierra 2500HD is built to handle heavy loads, with a maximum weight rating of up to 4173 kilograms (9199 pounds). Its ride height or ground clearance of 243 mm (9.6 inches) ensures solid off-road capability and helps in traversing uneven terrain. The Extended Cab Long Box configuration combines a spacious cabin with a long cargo bed, making it ideal for both work and recreational uses.
Cargo capacity is notable, with rear seat folding generating a generous 2138 liters (75.5 cubic feet) of luggage space, perfect for hauling tools, equipment, or outdoor gear. The model comes equipped with efficiently sized rims—16-inch wheels with 245/75 tires or optional 17-inch wheels paired with 265/75 tires—balancing ride comfort and durability.
Overall, the GMC Sierra 2500HD III Extended Cab Long Box is a dependable choice for those needing a large, powerful pickup truck with excellent cargo space, strong towing and payload capabilities, and versatility for various driving needs.
Discover the standout features that make the 2007 GMC Sierra 2500HD III Extended Cab Long Box a leader in its class
Have a question? Please check our knowledgebase first.
The GMC Sierra 2500HD III Extended Cab Long Box from 2007 measures 6330 mm (249.2 inches) in length. When mirrors are opened, the width of the vehicle is 2436 mm (95.9 inches). These dimensions make it a substantial pickup truck designed for heavy-duty performance, providing ample space in the cargo bed while maintaining a road presence typical for its class.
This 2007 GMC Sierra 2500HD has a height of 1930 mm (75.9 inches), which includes its typical pickup truck stance. The ride height or ground clearance is 243 mm (9.6 inches), enabling it to handle off-road conditions and rough terrain effectively. The height and ground clearance contribute to its capability for hauling and towing in various environments, balancing accessibility and rugged performance.
The curb weight of the 2007 GMC Sierra 2500HD III Extended Cab Long Box ranges between 2594 kg and 3036 kg (5720 to 6692 lbs), depending on the configuration. Its maximum gross vehicle weight (GVWR) is 4173 kg (9200 lbs), indicating the combined allowable weight of the truck, passengers, cargo, and trailer tongue weight. This robust weight capacity highlights the truck’s heavy-duty utility and towing strength.
With the rear seats folded down, the 2007 GMC Sierra 2500HD Extended Cab Long Box offers an impressive cargo space of 2138 liters (75.5 cubic feet). This spacious interior storage capacity in the extended cab configuration enables effective transport of tools, equipment, or personal items while maintaining passenger comfort in the cab area. It's a practical feature for work or recreational use.
The truck comes equipped with rim sizes of 6.5J x 16, 7.5J x 17 and corresponding tire sizes of 245/75 R16 and 265/75 R17. These tire sizes offer a good balance of ground contact surface and sidewall flexibility, enhancing traction on rough terrain. The combination is well-suited for the heavy-duty nature of the vehicle, improving both off-road performance and towing stability under varied conditions.
With its length of 6330 mm (249.2 inches or over 20.7 feet) and width of 2436 mm (95.9 inches) including mirrors, the 2007 GMC Sierra 2500HD Extended Cab Long Box is larger than most standard residential garage stalls. A typical single-car garage ranges from about 5.5 to 6 meters (18 to 20 feet) in length, so parking this truck inside requires a larger or custom garage space. Owners often need to consider extra space for opening doors comfortably as well.
Compared to the previous GMT800 generation, the 2007 GMC Sierra 2500HD III (GMT900) Extended Cab Long Box is noticeably larger in length and width. The GMT900 improved on interior space, cargo capacity, and overall ride height, making it more capable for heavy-duty tasks and more comfortable for occupants. The increased dimensions contribute to improved towing and payload performance, accentuating its position as a strong workhorse in the heavy-duty pickup segment.
The GMC Sierra 2500HD Extended Cab Long Box is roughly comparable in size to heavy-duty pickups like the Ford F-250 Super Duty and Dodge Ram 2500 of the same era. It is typically longer and wider than many half-ton pickups, reflecting its 3/4 ton class designation. The cargo volume and ground clearance are also competitive, matching the requirements for towing and off-road versatility common in this segment, while its curb weight is reflective of its robust build.
The 2007 GMC Sierra 2500HD III Extended Cab Long Box is a heavy-duty pickup truck designed for tough workloads. It comes with strong suspension components, available powerful V8 engines, and advanced towing features for its time. The extended cab offers seating for additional passengers, and the long box provides ample cargo space. It balances rugged utility with comfort and technology options that were advanced in its era, making it popular among contractors, haulers, and enthusiasts needing serious capability.
This truck is ideal for users needing heavy-duty hauling and towing, such as construction professionals, farmers, and outdoor adventurers. The extended cab allows for additional passengers or storage inside, while the long box accommodates large loads of equipment or materials. Its high ground clearance and powerful drivetrain options also make it capable off-road, suitable for rugged environments, and versatile depending on the specific demands of heavy-duty truck owners.
