

Tulsa, OK shoppers who are in the market for a heavy-duty truck with durable features that heighten capability and performance should take a look at the 2023 GMC Sierra 3500 HD at Mark Allen Buick GMC.
The 2023 GMC Sierra 3500 HD has several engines that include the 6.6L V8 gas engine. This engine is mated to a heavy-duty 6-speed automatic transmission that cranks out up to 401 horsepower and 464 pound-feet of torque. The 2023 GMC Sierra 3500 HD has an available 6.6L Duramax turbo-diesel engine that generates 445 horsepower and 910 pound-feet of torque, and an Allison 10-speed automatic transmission is available with Auto Grade Braking and Tow/Haul mode.
The Electronic shift 2-speed transfer case with push-button controls is a performance system that allows you to easily shift between 2WD High, 4WD, 4WD Low, and more. The 2023 GMC Sierra 3500 HD offers available performance packages that further elevate capability. The available X31 Off-Road Package includes skid plates, twin-tube Rancho shocks, Hill Descent Control, and an off-road suspension.