2024 GMC Sierra 3500HD: What’s Under the Hood

GMC pickup trucks have always been known for their rugged, work-ready performance, and the 2024 GMC Sierra 3500HD is no exception. Two engine options give you overwhelming power, and efficient brakes and transmissions keep you in control.

Overwhelming Power

The two powertrain options offered by the 2024 GMC Sierra 3500HD push the limits of raw pickup power. A 6.6-liter V8 engine comes standard on both the 2024 GMC Sierra 3500HD PRO and 2024 GMC Sierra 3500HD SLE, producing up to 401 horsepower and 464 lb-ft of torque.

For those who need even more power out of their new jobsite workhorse, the available enhanced 6.6-liter Duramax® Turbo Diesel V8 engine produces up to 470 horsepower and a dominant 975 lb-ft of torque.

Efficient Transmissions

With this much raw power at your disposal, you need a heavy-duty transmission to ensure smooth gear changes. The Allison® 10-speed automatic transmission is electrically controlled and can handle overdrive, keeping you in control in any situation.

The transmission’s Tow/Haul mode reduces shift cycling while towing or hauling, improving handling with heavy loads. Plus, with Auto Grade Braking, you can stay in control, even while hauling or towing downhill.

Responsive Brakes

The four-wheel antilock disc brakes that come standard on the 2024 GMC Sierra 3500HD use DuraLife™ brake rotors, with extra-hardened surfaces to resist corrosion and quieter performance. An available diesel exhaust brake offers even more braking power, using energy from the turbocharger for increased stopping power to the rear wheels. When combined with Tow/Haul Mode and Auto Grade Braking, carrying the biggest loads just got easier.

Try Out the 2024 GMC Sierra 3500HD Today

The 2024 GMC Sierra 3500HD delivers raw power for the toughest jobs. Come down to Patriot Buick GMC, your Boyertown, PA GMC dealership, and take one for a test drive today!