2021 GMC Sierra 2500HD Double Cab

2021 GMC Sierra 2500HD Double Cab Overview

The 2021 GMC Sierra 2500HD Double Cab is offered in the following styles: SLE 4dr Double Cab 4WD SB (6.6L 8cyl 6A), 4dr Double Cab 4WD SB (6.6L 8cyl 6A), 4dr Double Cab 4WD LB (6.6L 8cyl 6A), SLE 4dr Double Cab 4WD LB (6.6L 8cyl 6A), 4dr Double Cab LB (6.6L 8cyl 6A), SLT 4dr Double Cab 4WD SB (6.6L 8cyl 6A), SLT 4dr Double Cab 4WD LB (6.6L 8cyl 6A), 4dr Double Cab SB (6.6L 8cyl 6A), SLE 4dr Double Cab LB (6.6L 8cyl 6A), SLE 4dr Double Cab SB (6.6L 8cyl 6A), SLT 4dr Double Cab LB (6.6L 8cyl 6A), and SLT 4dr Double Cab SB (6.6L 8cyl 6A). GMC Sierra 2500HD Double Cab models are available with a 6.6 L-liter gas engine, with output up to 401 hp, depending on engine type. The 2021 GMC Sierra 2500HD Double Cab comes with four wheel drive. Available transmissions include: 6-speed shiftable automatic. The 2021 GMC Sierra 2500HD Double Cab comes with a 3 yr./ 36000 mi. basic warranty, a 5 yr./ 60000 mi. roadside warranty, and a 5 yr./ 60000 mi. powertrain warranty.

What do people think of the 2021 GMC Sierra 2500HD Double Cab?

Consumer ratings and reviews are also available for the 2021 GMC Sierra 2500HD Double Cab and all its trim types. Overall, Edmunds users rate the 2021 Sierra 2500HD Double Cab 4.3 on a scale of 1 to 5 stars. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2021 Sierra 2500HD Double Cab.

Pros

• Powerful diesel engine option
• Impressive towing camera system and other available in-cabin tech
• Variety of available models, including off-road-focused AT4

Cons

• Lags behind primary competitors for maximum towing and payload capacity
• Uninspired interior design
• Can get pricey with options

Edmunds Expert Reviews

Edmunds experts have compiled a robust series of ratings and reviews for the 2021 GMC Sierra 2500HD Double Cab and all model years in our database. Our rich analysis includes expert reviews and recommendations for the 2021 Sierra 2500HD Double Cab featuring deep dives into trim levels including SLE, Base, SLT, etc. with careful analysis around pricing, features, performance, mpg, safety, interior, and driving and performance. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

Our Review Process

This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

What's a good price for a New 2021 GMC Sierra 2500HD Double Cab?

2021 GMC Sierra 2500HD Double Cab 4dr Double Cab SB (6.6L 8cyl 6A)

The 2021 GMC Sierra 2500HD Double Cab 4dr Double Cab SB (6.6L 8cyl 6A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $40,095. The average price paid for a new 2021 GMC Sierra 2500HD Double Cab 4dr Double Cab SB (6.6L 8cyl 6A) is trending $1,676 below the manufacturer’s MSRP.

Edmunds members save an average of $1,676 by getting upfront special offers. The estimated special offer price in your area is $38,419.

The average savings for the 2021 GMC Sierra 2500HD Double Cab 4dr Double Cab SB (6.6L 8cyl 6A) is 4.2% below the MSRP.

2021 GMC Sierra 2500HD Double Cab SLE 4dr Double Cab SB (6.6L 8cyl 6A)

The 2021 GMC Sierra 2500HD Double Cab SLE 4dr Double Cab SB (6.6L 8cyl 6A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $44,595. The average price paid for a new 2021 GMC Sierra 2500HD Double Cab SLE 4dr Double Cab SB (6.6L 8cyl 6A) is trending $1,872 below the manufacturer’s MSRP.

Edmunds members save an average of $1,872 by getting upfront special offers. The estimated special offer price in your area is $42,723.

The average savings for the 2021 GMC Sierra 2500HD Double Cab SLE 4dr Double Cab SB (6.6L 8cyl 6A) is 4.2% below the MSRP.

2021 GMC Sierra 2500HD Double Cab SLT 4dr Double Cab SB (6.6L 8cyl 6A)

The 2021 GMC Sierra 2500HD Double Cab SLT 4dr Double Cab SB (6.6L 8cyl 6A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $52,595. The average price paid for a new 2021 GMC Sierra 2500HD Double Cab SLT 4dr Double Cab SB (6.6L 8cyl 6A) is trending $2,056 below the manufacturer’s MSRP.

Edmunds members save an average of $2,056 by getting upfront special offers. The estimated special offer price in your area is $50,539.

The average savings for the 2021 GMC Sierra 2500HD Double Cab SLT 4dr Double Cab SB (6.6L 8cyl 6A) is 3.9% below the MSRP.

Shop with Edmunds for perks and special offers on new cars, trucks, and SUVs near Ashburn, VA. Doing so could save you hundreds or thousands of dollars. Edmunds also provides consumer-driven dealership sales and service reviews to help you make informed decisions about what cars to buy and where to buy them.

Which 2021 GMC Sierra 2500HD Double Cabs are available in my area?

2021 GMC Sierra 2500HD Double Cab Listings and Inventory

Simply research the type of used car you're interested in and then select a car from our massive database to find cheap used cars for sale near you. Once you have identified a vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2021 GMC Sierra 2500HD Double Cab.

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2021 GMC Sierra 2500HD Double Cab for sale near you.

Can't find a new 2021 GMC Sierra 2500HD Sierra 2500HD Double Cab you want in your area? Consider a broader search.

Find a new GMC for sale.

Why trust Edmunds?

Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including all models of the 2021 GMC Sierra 2500HD Double Cab and all available trim types: SLT, Base, Base, etc. Rich, trim-level features & specs and options data tracked for the 2021 GMC Sierra 2500HD Double Cab include (but are not limited to): MSRP, available incentives and deals, average price paid, warranty information (basic, drivetrain, and maintenance), features (interior and exterior color, upholstery, bluetooth, navigation, cruise control, parking assistance, lane sensing, keyless ignition, satellite radio, folding rears seats,run flat tires, wheel type, tire size, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, torque, engine displacement, transmission), fuel economy and MPG (city, highway, and combined, fuel capacity, range), vehicle dimensions (interior cabin space, vehicle length and width, seating capacity, cargo space). Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, vehicle dimensions, consumer rating, edmunds expert review, safety rating, and color.

What is the MPG of a 2021 GMC Sierra 2500HD Double Cab?

2021 GMC Sierra 2500HD Double Cab SLE 4dr Double Cab 4WD SB (6.6L 8cyl 6A), 6-speed shiftable automatic, regular unleaded

2021 GMC Sierra 2500HD Double Cab 4dr Double Cab 4WD SB (6.6L 8cyl 6A), 6-speed shiftable automatic, regular unleaded

2021 GMC Sierra 2500HD Double Cab 4dr Double Cab 4WD LB (6.6L 8cyl 6A), 6-speed shiftable automatic, regular unleaded

Should I lease or buy a 2021 GMC Sierra 2500HD?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out GMC lease specials