Yes, the 2026 GMC Sierra 2500HD features a massive 36-gallon fuel tank. This specific capacity is standard across all heavy-duty bed configurations. Browse our 2500HD models in stock to schedule your test drive today.
No, it is exclusively available in a Single Rear Wheel configuration. This setup makes the truck much easier to park in narrow Marion parking lots than a massive dually, while still retaining exceptional structural strength for hauling heavy trailers.
It carries up to 3,979 lbs of maximum payload capacity when properly equipped. This means you can confidently haul massive pallets of brick or lumber to a Grant County job site without the rear suspension sagging under the weight.
It features a 36-gallon fuel tank. This immense capacity gives you excellent driving range, allowing you to pull a camper across state lines without making frequent, inconvenient gas station stops.
Yes, the Six-Function MultiPro Tailgate is available. This unique tailgate acts as a built-in standing desk or folds down into a wide bed step, ensuring you can load heavy toolboxes without straining your back. For a complete overview of the trim levels offering this feature, read our 2026 GMC Sierra HD lineup overview.
Yes, an integrated trailer brake controller is standard on most trims. This digital system gives you precise, fingertip control over your trailer brakes, which prevents dangerous trailer swaying when slowing down on I-69. If you ever need an aftermarket controller calibrated, our Marion truck service technicians can help.
Yes, the Allison 10-speed automatic transmission is standard with both gas and diesel engines. This heavy-duty gearbox provides smooth, predictable gear shifts even when hauling maximum payload weight up a steep hill.
Yes, selecting the AT4X trim provides a 1.5-inch factory lift. This lift provides the necessary ground clearance to clear deep mud and jagged rocks without damaging the undercarriage on rough rural trails. Explore more regarding these trims directly on the GMC Sierra 2500HD official features page.
It features a massive 13.4-inch diagonal touchscreen display. This huge digital interface makes reading navigation maps and backing up a trailer incredibly easy without forcing you to squint.
Yes, an available 120-volt bed-mounted power outlet is offered. This high-output socket allows you to charge your cordless drill batteries or run a small air compressor directly from the truck bed while working off the grid.
Yes, the available Transparent Trailer View utilizes up to 14 camera angles. The software digitally stitches the camera images together so you can effectively look straight through your camper to see vehicles trailing directly behind your blind spots.
If you want to learn more about the payload limits, technology features, or towing capabilities of the new Sierra 2500HD, our team is ready to assist you.
