Sales: (405) 486-9780 | Service: (405) 463-2494
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Sales: (405) 486-9780 | Service: (405) 463-2494
The GMC Sierra continues to set the bar for excellence in a pickup. Versatility is the Sierra’s strong point, as it offers a range of configurations, features, and engines to tackle your hardest jobs. The new GMC Sierra has four engine options, several luxury and hard-working trim levels, and several bed length and cab options to choose from. GMC’s headlining pickup offers best-in-class standard engine torque and best-in-class front head- and legroom, ensuring you have all the power and space you need. The GMC pickup trunk offers more personality and sharper styling than rivals like the Ford F-150, while delivering nearly identical power and plenty of added features. Whether you plan on pushing your Sierra 1500 to the max, or take it offroad, it’s up to the task. Visit our GMC Dealership in OKC to test drive the 2025 GMC Sierra 1500 for sale in OKC today!
The Sierra comes with your choice of four stout engine options, including a turbo-diesel for folks looking to max out their towing capacity. Options start with a turbo four and include two V8 options on top-end trim levels. Their outputs are as follows:
| Engine: | Horsepower: | Torque (lb-ft): | Towing Capacity (lbs): |
| 2.7L Turbo Max 4-Cylinder | 310 | 430 | 9,500 |
| 5.3L EcoTec3 V8 | 355 | 383 | 11,200 |
| 6.2L EcoTec3 V8 | 420 | 460 | 13,000 |
| DuraMax 3.0L Turbo-Diesel I-6 | 305 | 495 | 13,200 |
The base powertrain pairs with an eight-speed automatic transmission, while the other three options are paired with a 10-speed automatic. Performance features vary across the trim levels, with optional adaptive dampers and wheels up to 22 inches. At its quickest, the 6.2-liter V8 can jump from 0 to 60 in 5.4 seconds, and at its most fuel-efficient, the diesel will get you 23 mpg in the city and 29 mpg on the highway. Test drive one of our GMC trucks for sale in OKC at Bob Moore GMC.
The Sierra 1500 has three cab options and three bed-length options. The cabs are represented by a Regular, Double, and Crew Cab, while the beds come in a Short 69.9-inch option, a Standard 79.4-inch option, and a Long 98.2-inch option. Eight trim levels are available for purchase:
| Trim Level: | Cab and Bed Lengths: |
| GMC Sierra 1500 PRO | Reg, Double and Crew Cab, Standard, Long and Short Bed |
| GMC Sierra 1500 SLE | Double or Crew Cab, Standard or Short Bed |
| GMC Sierra 1500 Elevation | Double or Crew Cab, Standard or Short Bed |
| GMC Sierra 1500 SLT | Crew Cab, Short or Standard Bed |
| GMC Sierra 1500 AT4 | Crew Cab, Short or Standard Bed |
| GMC Sierra 1500 Denali | Crew Cab, Short or Standard Bed |
| GMC Sierra 1500 AT4X | Crew Cab, Standard Bed |
| GMC Sierra 1500 Denali Ultimate | Crew Cab, Short or Standard Bed |
The trim levels start with a couple work truck options, including the Pro and SLE. Engine options vary based on what you’d prefer, but the 5.3-liter V8 comes standard on the SLT and Denali, while the AT4 gets a standard diesel and the Denali Ultimate gets the 6.2-liter V8. We’ll highlight the Denali and AT4 class in more detail below.
The AT4 and the AT4X represent the off-road options of the Sierra. While all models offer great off-road ability, the AT4 class comes equipped with some added features that make it a champion on the most challenging trails. The AT4 comes with a 2-inch factory lift with off-road suspension and Rancho monotube shocks, an underbody skid plate, and its own set of interior accents. The AT4X adds front and rear locking differentials, multimatic DSSV dampers, a steel front bumper with an AEV skid plate, plus comfort features like power heating, massage, and ventilated front seats.
The Denali class includes the 2025 GMC Sierra 1500 Denali and Denali Ultimate, the most luxurious options in the Sierra lineup. The Denali gets a healthy serving of chrome on the front grille, with open-pore wood, patterned aluminum, and perforated leather seats in the cabin. The 2025 GMC Sierra 1500 Denali Ultimate has a Darth Vader-inspired dark chrome grille, heated, ventilated, and massaging seats, a premium sound system, and GM’s driver assistance program, Super Cruise. Super Cruise headlines a robust driver assistance program throughout the Sierra 1500 class, offering the most extensive network of hands-free driving in North America. Test drive a new GMC Sierra Denali for sale in OKC at Bob Moore GMC.
From rugged diesel power to luxurious cabs that rival the best sedans on the market, the GMC Sierra can do it all. Visit Bob Moore GMC in Oklahoma City to find your next GMC truck for sale today!