Sierra 3500

Spider

AWD4WD

8-Cylinder Turbo

Diesel

Discover the unparalleled power and capability of the 2026 GMC Sierra 3500HD SLT. This exceptional heavy-duty pickup is engineered to conquer any challenge, whether you're tackling tough job sites or embarking on thrilling adventures. Boasting a powerful Duramax 6.6L V8 Turbodiesel engine, the Sierra 3500HD delivers an impressive 470 horsepower and an astounding 975 lb-ft of torque, ensuring you have the muscle to haul heavy loads with ease. Paired with a smooth-shifting 10-speed automatic transmission and robust 4-wheel-drive system, this truck is ready to tackle any terrain with confidence. . 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) . Suspension Package . 6-Speaker Audio System . Premium GMC Infotainment System . Automatic Temperature Control . 120-Volt Bed Mounted Power Outlet . Remote Vehicle Starter System . Keyless Open &amp; Start . Lane Departure Warning System . LED Cargo Area Lighting . Heated Driver &amp; Front Outboard Passenger Seats . Hitch Guidance with Hitch View Step inside the spacious and well-appointed cabin of the Sierra 3500HD SLT, where premium leather-appointed seats, a heated steering wheel, and a host of advanced technology features create an unparalleled driving experience. Stay connected and entertained with the premium GMC Infotainment System, while the available 13.4&quot; diagonal information display keeps you informed at a glance. Whether you're tackling tough jobs or embarking on epic adventures, the 2026 GMC Sierra 3500HD SLT is the ultimate heavy-duty companion. With its exceptional power, advanced capabilities, and refined interior, this truck is built to exceed your expectations and make every journey a true pleasure. Why Buy from Southwest Buick GMC Lawton? Southwest Buick GMC makes car buying straightforward with true transparent pricing, no hidden fees, and no market adjustments. We offer strong trade-in values and a wide selection of new Buick and GMC models, certified pre-owned options, and quality used vehicles. We'll buy your car even if you don't purchase from us. Proudly serving drivers in Lawton, Duncan, Chickasha, Elgin, Wichita Falls, Norman, OKC, and surrounding areas. Shop online or stop by today for a dealership experience built on honesty and efficiency. Price includes: $500 - Purchase Allowance. Exp. 12/01/2025

New 2026 GMC Sierra 3500 SLT w/ Texas SLT Premium Package

New 2026 GMC Sierra 3500 SLT w/ Texas SLT Premium Package Lawton OK 73505

Texas SLT Premium Package

Gooseneck/5TH Wheel Prep Package

LPO, Hitch Package

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SouthWest Buick GMC of Lawton

 for sale in Lawton, OK. Learn more about this vehicle.

New 2026 GMC Sierra 3500 SLT w/ Texas SLT Premium Package for sale in Lawton, OK 73505: Truck Details - 762347443 | Kelley Blue Book

MSRP	$87,650
Listing Price	$80,138

New 2026 GMC Sierra 3500

w/ Texas SLT Premium Package SLT