# 2025 GMC Sierra 2500HD AT4 Duramax 4x4 Onyx Black
**Low Miles â" 6.6L Duramax â" Allison 10-Speed â" Clean CARFAX!**#
If you're looking for a heavy-duty diesel that can **work hard all week and still feel like a premium truck every day**, this **2025 GMC Sierra 2500HD AT4 Crew Cab 4x4** is the one to see. Finished in **Onyx Black** with a **Jet Black leather interior and Kalahari accents**, this AT4 has the aggressive look and upscale interior that make it one of GMC's most desirable HD trucks.
Under the hood is the powerhouse combination truck buyers want: the **6.6L Duramax V8 Turbo Diesel paired with the Allison 10-speed automatic transmission**. Whether you're pulling equipment, towing a large trailer, heading to the ranch, or putting in highway miles across the Permian Basin, this Sierra is built to handle serious work.
Even better, this truck has a **Clean CARFAX** and its odometer is **13,531 miles below market average**, giving you the opportunity to own a nearly new Duramax AT4 without paying new-truck money.
### Duramax Power. AT4 Capability.
**6.6L Duramax Turbo Diesel:** Serious diesel torque and heavy-duty capability for towing, hauling, and demanding work.
**Allison 10-Speed Automatic:** One of the most sought-after heavy-duty powertrain combinations on the market.
**AT4 Off-Road Capability:** Built for drivers who need more than pavement, whether that's ranch roads, jobsites, hunting country, or weekend adventures.
**Premium AT4 Interior:** Jet Black leather with distinctive **Kalahari accents** gives this work-capable truck a genuinely upscale cabin.
**4WD & Crew Cab:** Plenty of capability outside with plenty of passenger and gear space inside.
**Clean CARFAX:** Added confidence when shopping for your next heavy-duty diesel.
**13,531 Miles Below Market Average:** Hard to beat when you're looking for a late-model Duramax that's already taken the initial depreciation hit.
### Built for West Texas
This is exactly the kind of truck that belongs in **Midland, Odessa, the Permian Basin, and West Texas**. Tow the equipment trailer, head to the oilfield, work the ranch during the week, then clean it up and take the family out on the weekend.
### The Premier Advantage â" West Texas' Work Truck Headquarters
At **Premier Chrysler Dodge Jeep RAM of Lamesa**, we specialize in **hard-to-find trucks and heavy-duty diesels**. We keep the buying process straightforward with **no big-city pressure and no gimmicksâ"just great trucks at competitive prices**.
We proudly serve truck buyers throughout **Lamesa, Lubbock, Midland, Odessa, Big Spring, Brownfield, Snyder, Post, San Angelo, Abilene, Amarillo, the Permian Basin, Hobbs and Eastern New Mexico, and nationwide**.
We offer **competitive financing, accept all trades, and sell trucks nationwide**, so you don't have to be in West Texas to take advantage of the right truck.
**6.6L Duramax. Allison 10-Speed. AT4. 4WD. Crew Cab. Clean CARFAX. 13,531 miles below market average.**
**Hard-to-find Duramax AT4s don't stay around forever. Come see this 2025 GMC Sierra 2500HD AT4 today at Premier CDJR of Lamesa or ask us about nationwide delivery!**#