Sierra 3500

Spider

AWD4WD

8-Cylinder

Gasoline

2026 GMC Sierra 3500HD Pro 4WD 8' Long Bed Summit White | 6.6L V8 Gas | X31 Off-Road | Upfitter Switches Shop the 2026 GMC Sierra 3500HD Pro 4WD with 8-foot bed, 6.6L V8 gas engine, X31 Off-Road Package, upfitter switches, and heavy-duty capability. Built for the Job. Ready for Upfitting. The 2026 GMC Sierra 3500HD Pro 4WD with 8-foot bed is engineered for contractors, fleets, and serious work. Finished in Summit White, this heavy-duty pickup delivers proven 6.6L V8 gas power, rugged 4WD capability, and a long bed designed to handle oversized loads, equipment, and upfits. With a 10-speed automatic transmission, 3.73 rear axle, and factory upfitter switch kit, this Sierra Pro is ready for plows, utility bodies, service beds, and job-site demands. Power &amp; Capability 6.6L V8 Gas Engine 10-Speed Automatic Transmission 4WD with 2-Speed Electronic Shift Transfer Case 3.73 Rear Axle Ratio Dual Heavy-Duty 70-Amp-Hour Batteries Off-Road Suspension Hill Descent Control X31 Off-Road Package Built to work in tough conditions, on and off the pavement. Work-Focused Exterior &amp; Utility 8-Foot Long Bed EZ-Lift Power Lock &amp; Release Tailgate Spray-On durability with LED cargo lighting LED Smoked Amber Roof Marker Lamps Chrome grille with flat black insert bars 18&quot; Silver 8-Spoke Painted Steel Wheels Deep-tinted glass Exterior rear parking camera Interior &amp; Technology Durable Vinyl Seating 6-Speaker Audio System GMC Infotainment System Wireless Apple CarPlay &amp; Android Auto Push-button start Remote keyless entry Convenience Package Power accessories designed for daily use Upfit &amp; Commercial Ready Upfitter Switch Kit (5 switches) Heavy-duty electrical system Long-bed configuration ideal for plows, racks, and toolboxes Fleet-friendly design with low operating costs Why Choose the 2026 Sierra 3500HD Pro Long Bed? 8-foot bed for maximum cargo capacity Proven 6.6L V8 gas power Factory upfitter switches X31 off-road capability Ideal for contractors, fleets, and municipal use The 2026 GMC Sierra 3500HD Pro 4WD Long Bed is the no-nonsense heavy-duty truck built to work hard every day. Contact us today for fleet pricing or to schedule a test drive. Sale price may include incentives not eligible for all customers. Sales price does not include sales tax, registration and title or dealer conveyance fee of $729. See Dealer for all details. Price includes standard rebates. Additional rebates may be available, please see dealer for details: $500 - Buick &amp; GMC Consumer Cash Program. Exp. 02/02/2026

New 2026 GMC Sierra 3500 Pro

New 2026 GMC Sierra 3500 Pro New Britain CT 06051

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 for sale near you in New Britain, CT. Get more information and car pricing for this vehicle on Autotrader.

New 2026 GMC Sierra 3500 Pro for sale in New Britain, CT 06051: Truck Details - 769833134 - Autotrader