U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2026 GMC Sierra 2500HD

Vehicle Details

VIN1GT4UPE79TF290678
TrimAT4
Exterior ColorBlack
Drivetrain4WD
Engine6.6L V8
TransmissionAutomatic
Fuel TypeE85 / Unleaded
Inventory Typenew
MSRP$79,835
Days on Lot10

2026 GMC Sierra 2500HD

AT4

Fair Price
$75,335Mileage not verified

Danbury, CT 06810

Is this 2026 GMC Sierra 2500HD AT4 a good deal?

OAV verdict: Fair Price

Why: Listed at $75,335, comparable market range $74,840–$88,813, based on 10 comparable listings. Days on lot: 10 days (market average 59 days).

Market price position

74,840
88,813
75,335

$75,335 · within market range

$74,840comparable$88,813
Regional range
$74,840 – $88,813
vs. market
$495 above low · $13,478 below high
Comparable vehicles
10
Demand-Verified· Backed by recent sales data
High Demand

Similar vehicles recently sold in an estimated 552 days.

What does Demand-Verified mean?

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.

Local Range$74,840 – $88,813
Regional Range$73,874 – $90,860

Dealer Info

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Danbury, CT

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About This 2026 GMC Sierra 2500HD

Listing updated: May 19, 2026

Listed by a franchise dealer in Danbury, CT · On lot for 10 days · VIN verifiable at NHTSA

This new 2026 GMC Sierra 2500HD AT4 is listed at $75,335 by a franchise dealer in Danbury, CT 06810. It has 1 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 10 similar vehicles in the Danbury market, the estimated market range is $74,840 to $88,813. The local market range in CT is $74,840 to $88,813.

This vehicle has been on the lot for 10 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 Danbury, CT 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 2026 GMC Sierra 2500HD against similar vehicles currently available in the local and regional market — same make, model, and year range, filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:

This rating refreshes daily as inventory enters and leaves the market. The dealer on this listing has not yet activated on OAV, so the business name and contact details are anonymized here. Activated (paying) dealers appear with their verified business name and a Verified badge.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Danbury, CT, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT4UPE79TF290678 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 refreshed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2026 GMC Sierra 2500HD Market in CT

Comparable Vehicles

337

Average Price

$80,625

Price Range

$46,294–$104,669

Avg Days on Lot

59

Based on 337 comparable 2024-2028 GMC Sierra 2500HD listings in CT, the average asking price is $80,625. This listing at $75,335 is $5,290 below average (7% below market). Comparable prices in CT range from $46,294 to $104,669. Similar vehicles spend an average of 59 days on dealer lots in this market.

Similar GMC Sierra 2500HD Listings in CT

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)