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- 2015 Sierra 3500HD IV (GMTK2XX) Regular Cab Long Box
GMC2015 GMC Sierra 3500HD IV (GMTK2XX) Regular Cab Long Box Dimensions, Size & Specs| Production | |
|---|---|
| Model Year: | 2015 |
| Production Years: | 2015 - 2019 discontinued in 2019 |
Precise measurements of the 2015 GMC Sierra 3500HD IV Regular Cab Long Box, engineered for optimal performance and comfort
| Dimensions | |
|---|---|
| Length: | 5699 mm224.4 in18.7 ft |
| Width (Opened Mirrors): | 2035 - 2438 mm80.1 - 96.0 in6.7 - 8.0 ft |
| Height: | 1965 - 1979 mm77.4 - 77.9 in6.4 - 6.5 ft |
| Ground Clearance: | 204 - 229 mm8.0 - 9.0 in0.7 - 0.8 ft |
| Trunk Capacity (Max): | 2162 liter76.4 cu ft |
| Weight Specifications | |
| Curb Weight: | 2714 - 3394 kg5983 - 7482 lbs |
| Maximal permitted Weight: | 4717 - 6123 kg10399 - 13499 lbs |
| Tire Specifications | |
| Rims Sizes: | 7.5J x 17, 8J x 18 |
| Tire Sizes: | 235/80 R17 (W:235 | H:80 | D:17) 265/70 R18 (W:265 | H:70 | D:18) |
The GMC Sierra 3500HD IV (GMTK2XX) Regular Cab Long Box model was produced between 2015 and 2019 as a robust and durable heavy-duty pickup truck designed for demanding work and towing requirements. With an exterior length of 5699 mm (224.3 inches), this long box configuration provides substantial cargo space in its bed, complementing its strong structural footprint. The width, measured including opened mirrors, ranges from 2035 mm to 2438 mm (80.1 to 96 inches), which enhances visibility and maneuverability despite its size, while the height varies between 1965 mm and 1979 mm (77.4 to 77.9 inches), giving it a commanding road presence. The curb weight of the vehicle spans from 2714 kg to 3394 kg (5986 to 7479 lbs), reflecting its heavy-duty build which allows for a maximum gross weight between 4717 kg and 6123 kg (10,399 to 13,498 lbs). This capability makes the Sierra 3500HD IV highly suitable for intensive towing and payload tasks. The cargo capacity behind the rear seats (with seats folded) stands at an impressive 2162 liters (76.3 cubic feet), offering ample room for gear and equipment. Ground clearance ranges from 204 mm to 229 mm (8 to 9 inches), providing adequate ride height for off-road capability and rough terrain navigation. The truck rolls on a variety of rim sizes from 7.5J x 17 to 8J x 18 inches and is equipped with tire sizes from 235/80 R17 up to 265/70 R18, balancing load capacity and ride quality. Overall, the 2015-2019 GMC Sierra 3500HD Regular Cab Long Box is a powerful pickup tailored for professional use, combining large dimensions, high weight ratings, and strong durability needed for heavy workloads.
Discover the standout features that make the 2015 GMC Sierra 3500HD IV Regular Cab Long Box a leader in its class
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The 2015 GMC Sierra 3500HD IV Regular Cab Long Box measures 5699 mm (224.3 inches) in length. When considering width, the vehicle spans between 2035 mm (80.1 inches) with mirrors folded to 2438 mm (96 inches) when mirrors are fully extended. This width range accounts for practical situations such as driving with mirrors folded for narrow spaces and fully extended for better rear visibility during towing or regular driving.
The truck's height ranges from 1965 mm (77.4 inches) to 1979 mm (77.9 inches), depending on specific trim and suspension details. The ride height or ground clearance varies between 204 mm (8.0 inches) to 229 mm (9.0 inches). This significant ground clearance supports off-road capability and performance when hauling or carrying heavy loads.
The curb weight of this generation of the Sierra 3500HD ranges from 2714 kg (5,985 lbs) to 3394 kg (7,481 lbs) depending on specific equipment and configuration. Its maximum allowable weight (Gross Vehicle Weight Rating or GVWR) stretches from 4717 kg (10,398 lbs) to 6123 kg (13,500 lbs), highlighting its capacity to handle heavy payloads and towing demands efficiently.
With the rear seats folded, the 2015 GMC Sierra 3500HD IV Regular Cab Long Box offers 2162 liters (approximately 76.3 cubic feet) of luggage or cargo capacity. This large volume supports significant storage needs, making it highly practical for transporting bulky items, tools, or equipment typically required for work or heavy-duty use cases.
The truck is equipped with rim sizes including 7.5J x 17 inches, 8J x 18 inches, or 8J x 18 inches based on selected trims or packages. Corresponding tire sizes that complement these rims are 235/80 R17 and 265/70 R18. These size options provide a balance of durability and performance suitable for a heavy-duty pickup truck, catering to various driving and loading conditions.
Given its substantial length of 5699 mm (224.3 inches or approximately 18.6 feet) and width of up to 2438 mm (96 inches or 8 feet) with mirrors extended, fitting the Sierra 3500HD IV Regular Cab Long Box in a typical residential garage can be challenging. Most standard garages are around 6 meters (approximately 20 feet) deep with widths near 2.4 meters (8 feet), making it a tight fit, especially when mirrors are open. Folding mirrors may help, but drivers should measure their garage space carefully before parking this truck indoors.
Compared to the previous generation, the 2015 GMC Sierra 3500HD IV (GMTK2XX) underwent updates that maintained similar exterior dimensions to preserve its heavy-duty utility. The length at 5699 mm (224.3 inches) and width with mirrors extended up to 2438 mm (96 inches) remained largely consistent, focusing improvements more on interior comfort, powertrain, and technology rather than drastic size changes. This approach ensured that existing users transitioning to the newer model would retain familiar handling characteristics and garage compatibility, while benefiting from refreshed features.
The 2015 GMC Sierra 3500HD IV Regular Cab Long Box stands competitive among heavy-duty pickups like the Ford Super Duty F-350 and Ram 3500. Dimensionally, its length of 5699 mm (224.3 inches) is comparable to these rivals, though it may be slightly longer or shorter depending on the exact configurations. The wide mirror span up to 2438 mm (96 inches) is typical for heavy-duty trucks equipped with towing mirrors. Curb weights and GVWR align with segment standards, offering strong payload and towing capabilities. The Sierra's large cargo volume of 2162 liters (76.3 cubic feet) also compares favorably, emphasizing its practicality for work or fleet use.
With a ride height or ground clearance of 204 to 229 mm (8 to 9 inches), the Sierra 3500HD IV Regular Cab Long Box is well-suited for off-road and rough terrain conditions often encountered in heavy-duty utility work. This clearance minimizes the risk of undercarriage damage over uneven ground and supports ingress and egress from difficult job sites. While not as high as specialized off-road vehicles, it balances ground clearance with vehicle stability and towing capacity.
The 2015 GMC Sierra 3500HD IV is classified as a heavy-duty pickup truck, specifically a Regular Cab with a Long Box configuration designed for maximum utility and cargo space. It is widely used for commercial, agricultural, and industrial applications where hauling heavy loads and towing are routine. Its robust build supports a variety of jobs requiring both strength and reliability, while the extended cargo area provides ample room for tools, supplies, and large equipment.
