2021 GMC Sierra 2500HD AT4
Vehicle Details
AT4
Addison, TX 75001
Is this 2021 GMC Sierra 2500HD AT4 a good deal?
OAV verdict: Fair Price
Why: Listed at $49,995, comparable market range $46,990–$63,224, based on 18 comparable listings. Listed 92 days.
Market price position
$49,995 · within market range
- Comparable range
- $46,990 – $63,224
- vs. market
- $3,005 above low · $13,229 below high
- Comparable vehicles
- 18
Market Retail Price (MRP™)
$55,107This vehicle $49,995 · $5,112 (9%) below MRP
MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.
True Retail Value (TRV™)
$49,765This vehicle $49,995 · $230 (0%) above TRV
TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-08-22) — an estimate, not an appraisal. How TRV works.
Comparable vehicles nationally recently sold in an estimated 16–58 days.
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.
Carsandpickups.Com Dallas
Addison, TX
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
Request availability and out-the-door price
OAV will route your inquiry to Carsandpickups.Com Dallas for current availability of this 2021 GMC Sierra 2500HD AT4 and an out-the-door price quote (taxes, fees, addons included).
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
About This 2021 GMC Sierra 2500HD
Listing updated: Aug 22, 2026Listed by an independent dealer in Addison, TX · On lot for 92 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 2500HD AT4 is listed at $49,995 by carsandpickups.com dallas in Addison, TX 75001. It has 100,817 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Black. It features a 4WD drivetrain with a 6.6L V8 engine and Automatic transmission.
OAV's independent, evidence-backed Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 18 comparable listings matched to this vehicle, the estimated market range is $46,990 to $63,224. These comparisons match year, make, model, and market, using trim where trim data supports it. OAV does not adjust comparables for odometer — where mileage would distort a verdict, it withholds one instead.
This vehicle has been on the lot for 92 days.
Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).
Market context
This listing is part of OAV's broader Addison, TX trucks market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.
How this deal is rated
OAV compares this 2021 GMC Sierra 2500HD against similar vehicles currently available in the local and regional market — same make, model, and year range, using trim where trim data supports it. OAV does not adjust comparables for odometer; on very high-mileage vehicles it withholds a verdict rather than overstate a discount the odometer explains. Based on where this listing falls in that comparable set, it is rated:
- Great Deal — priced below the typical range for comparable vehicles.
- Fair Price — priced within the expected range for comparable vehicles.
- Overpriced — priced above the typical range for comparable vehicles.
Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.
How this listing is verified
This vehicle listing was aggregated from an independent dealer in Addison, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT49PEY8MF311998 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.
Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.
2021 GMC Sierra 2500HD Market in TX
TX Market Listings
162
Average Price
$47,126
Price Range
$15,202–$87,400
Avg Days on Lot
103
Based on all 162 2019-2023 GMC Sierra 2500HD listings in the TX market, the average asking price is $47,126. This listing at $49,995 is $2,869 above the broader TX average (6% above the TX average). This is a wider, all-trim comparison across TX; OAV's price verdict above uses the closer comparable set. Comparable prices in TX range from $15,202 to $87,400. Similar vehicles spend an average of 103 days on dealer lots in this market.
Similar GMC Sierra 2500HD Listings in TX
8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: AT4 — compare trims below)
2022 GMC Sierra 2500HD
AT4
Houston, TX
2020 GMC Sierra 2500HD
AT4
Kennedale, TX
2019 GMC Sierra 2500HD
Base
Garland, TX
2020 GMC Sierra 2500HD
Base
Houston, TX
2022 GMC Sierra 2500HD
Pro
Muenster, TX
2019 GMC Sierra 2500HD
SLT
Sulphur Springs, TX
2019 GMC Sierra 2500HD
SLT
San Antonio, TX
2020 GMC Sierra 2500HD
SLE
Houston, TX