
The 2026 GMC Sierra 3500HD Pro In-Transit delivers the diesel power and capability you need for serious work and reliable daily operation.
- Duramax 6.6L V8 Turbodiesel with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD capability
- 2-Speed Active Electronic AutoTrac Transfer Case
- Dual rear wheels for enhanced load-carrying stability
- Suspension Package for improved ride and handling
- GMC Infotainment System with Apple CarPlay and Android Auto compatibility
- Lane Departure Warning System and Forward Collision Alert
- IntelliBeam Automatic High Beam technology
- OnStar Services capability for emergency communication
- Remote keyless entry and wireless phone projection
- Electronic Stability Control and traction control
- Power steering, windows, and 4-way adjustable seats
- Chrome bumpers and grille with flat black insert
- 40-gallon rear fuel tank for extended range
This Sierra 3500HD Pro In-Transit comes equipped with a heavy-duty electrical system featuring a 170 Amp alternator and 80 Amp-Hour battery to support demanding job site conditions. The diesel engine includes an engine block heater and is B20-diesel compatible, offering flexibility in fuel choices. The dual rear wheels provide the extra stability you need when hauling serious loads, while the electronic transfer case gives you command over terrain and traction.
Safety comes standard with dual front impact airbags, front side impact airbags, an overhead airbag, and occupant sensing technology. Lane Departure Warning, Forward Collision Alert, and Front Pedestrian Braking work together to keep you aware of potential hazards. Electronic Stability Control and anti-lock brakes ensure confident handling in varied conditions.
Inside, the cab features a vinyl seat trim with a front 40/20/40 split-bench configuration, giving you flexibility for passengers or cargo. The GMC Infotainment System pairs with Apple CarPlay and Android Auto for seamless smartphone integration. Climate control, power windows, and illuminated entry make daily operation more convenient.
The Pro In-Transit trim balances capability with value, offering the work-ready features you need without unnecessary extras. With gray exterior paint, 17-inch painted steel wheels, and chrome accents, this truck presents a professional appearance ready for any job.
This 2026 Sierra 3500HD is built to perform. Come see it in our showroom and experience the combination of diesel efficiency, smart technology, and rugged capability that makes this truck a wise choice for demanding applications. Not all customers may qualify for all rebates listed, see dealer for details. Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 08/03/2026 Price includes $225 in dealer added accessories.
