Vehicle Details
2021 GMC Sierra 2500HD
AT4
Williamsville, NY 14221
Market price position
$55,942 · within market range
- Regional range
- $45,999 – $61,230
- vs. market
- $9,943 above low · $5,288 below high
- Comparable vehicles
- 29
Market Breakdown
Dealer Info
Williamsville, NY
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About This 2021 GMC Sierra 2500HD
Listing updated: Apr 20, 2026This used 2021 GMC Sierra 2500HD AT4 is listed at $55,942 by a dealer in Williamsville, NY 14221. It has 43,296 miles on the odometer. The exterior color is Black. It features a 4WD drivetrain with a 6.6L V8 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 29 similar vehicles in the Williamsville market, the estimated market range is $45,999 to $61,230.
This vehicle has been on the lot for 54 days.
Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).
2021 GMC Sierra 2500HD Market in NY
Comparable Vehicles
504
Average Price
$53,414
Median Price
$54,995
Avg Days on Lot
49
Based on 504 comparable 2019-2023 GMC Sierra 2500HD listings in NY, the average asking price is $53,414 and the median is $54,995. This listing at $55,942 is $2,528 above average (5% above market). Comparable prices in NY range from $22,900 to $66,995. Similar vehicles spend an average of 49 days on dealer lots in this market.
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