New 2026 GMCSierra 3500 HD AT4 6.6L V8 Gas engine

Located at Baker Buick GMC of Lowell.

The 2026 GMC Sierra 3500HD AT4 is a rugged and capable pickup that's ready to take on any challenge. Equipped with a powerful 6.6L V8 engine and 10-speed automatic transmission, this Sierra 3500HD AT4 delivers exceptional performance and off-road prowess.

- UPFITTER SWITCH KIT, (5)
- LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND ROWS
- AT4 PREMIUM PLUS PACKAGE
- LPO, BLACK BADGING PACKAGE
- LPO, SPORT PEDAL COVER KIT
- LPO, BODY COLOR WHEEL ARCH MOLDINGS
- SNOW PLOW PREP/CAMPER PACKAGE
- GOOSENECK / 5TH WHEEL PREP PACKAGE

This Sierra 3500HD AT4 is loaded with premium features, including a Bose premium sound system, SiriusXM with 360L, steering wheel audio controls, and a 120-volt power outlet in the bed. The off-road-focused suspension, 2-speed transfer case, and off-road high clearance step ensure you can conquer any terrain with confidence.

Inside, you'll find a wealth of advanced technology, from the 15-inch head-up display to the wireless charging and wireless phone projection. The premium leather-appointed seats are both heated and ventilated, keeping you comfortable in any weather. Safety features like the surround vision camera, rear cross-traffic alert, and trailer side blind zone alert provide added peace of mind.

Whether you're tackling tough job sites or exploring the great outdoors, the 2026 GMC Sierra 3500HD AT4 is the ultimate heavy-duty pickup. Experience its uncompromising capability and premium features for yourself. Pricing assumes qualification for the GMS discount.