New GMC Sierra 2500 HD for Sale Miami FL

Your search for a new GMC Sierra 2500 HD for sale in Miami, FL, can start right here at Williamson Buick GMC. This heavy-duty pickup is built for the work you see along Krome Avenue, where equipment trailers and loaded flatbeds are part of the daily traffic.

Our new Sierra 2500 HD inventory spans work and lifestyle builds, including Regular Cab Pro trucks and Crew Cab Denali Ultimate models. The mix of cab styles, bed lengths, and engines lets you narrow it down to trucks that fit your plans.

The job usually decides it. Contractors rebuilding roofs and seawalls often want an 8-foot long bed and room for a gooseneck. A family pulling a fifth-wheel camper up US-27 toward Lake Okeechobee will likely lean toward a Crew Cab with the Duramax diesel. Race weekends at Homestead-Miami Speedway bring out enclosed car haulers, too, so schedule a test drive with the setup you plan to tow.

The 2026 GMC Sierra 2500 HD comes standard with a 6.6L V8 gas engine and an Allison 10-speed automatic transmission. The available Duramax 6.6L Turbo-Diesel V8 makes 470 horsepower and 975 lb-ft of torque, and a properly equipped Regular Cab model can tow up to 22,390 pounds with a gooseneck or fifth-wheel hitch.

• Standard engine: 6.6L V8 gas with Allison 10-speed automatic transmission
• Available engine: Duramax 6.6L Turbo-Diesel V8 with 470 HP and 975 lb-ft of torque
• Max available towing: up to 22,390 pounds (gooseneck/fifth-wheel, Regular Cab, properly equipped)
• Max available conventional towing: up to 20,000 pounds (Crew Cab)
• Max available payload: up to 4,049 pounds (Regular Cab)
• Cabs and beds: Regular, Double, and Crew Cab, with a 6-foot 9-inch standard bed or 8-foot long bed
• Tech: 13.4-inch diagonal touchscreen and 12.3-inch diagonal digital Driver Information Center (standard on SLE and SLT)

For many drivers, the SLT hits the sweet spot, adding the ProGrade Trailering System with the In-Vehicle Trailering App to help with hitching and trailer checks before a Saturday on the water. MotorTrend gives the 2026 Sierra 2500 HD a score of 8.8 out of 10.* Our team can line up a few trims so you can feel the differences on a test drive.

Our finance team builds loan and lease options around how hard you'll work the truck. A quick online pre-approval and trade-in estimate give you real numbers before you pick a trim.

Business owners have a few extra details to weigh. A landscaping crew hauling a skid steer, or a marine tech towing customer boats along the Intracoastal, may think about how long they'll keep the truck and how much to put down. Our team can walk through those questions with you once you apply for financing online.