Vehicle Details
2021 GMC Sierra 1500
AT4
Watertown, CT 06795
Is this 2021 GMC Sierra 1500 AT4 a good deal?
OAV verdict: Fair Price
Why: Listed at $35,997, comparable market range $32,879–$44,487, based on 15 comparable listings. Days on lot: 4 days (market average 55 days).
Market price position
$35,997 · within market range
- Regional range
- $32,879 – $44,487
- vs. market
- $3,118 above low · $8,490 below high
- Comparable vehicles
- 15
Market Retail Price (MRP™)
$38,683This vehicle $35,997 · $2,686 (7%) 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™)
$36,473This vehicle $35,997 · $476 (1%) below TRV
TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-20) — an estimate, not an appraisal. How TRV works.
Similar vehicles recently sold in an estimated 15–53 days.
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges update continuously.
Gmc Of Watertown
Watertown, CT
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 Gmc Of Watertown for current availability of this 2021 GMC Sierra 1500 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 1500
Listing updated: Jul 20, 2026Listed by a franchise dealer in Watertown, CT · On lot for 4 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 1500 AT4 is listed at $35,997 by gmc of watertown in Watertown, CT 06795. It has 96,523 miles on the odometer. The exterior color is White. It features a 4WD drivetrain with a 5.3L 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 15 similar vehicles in the Watertown market, the estimated market range is $32,879 to $44,487.
This vehicle has been on the lot for 4 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 Watertown, 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 2021 GMC Sierra 1500 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:
- 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 a franchise dealer in Watertown, CT, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP9EED3MG186390 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 updated continuously; Price-to-Market analysis uses comparable vehicles within the same geographic market.
2021 GMC Sierra 1500 Market in CT
Comparable Vehicles
228
Average Price
$38,549
Price Range
$19,791–$59,988
Avg Days on Lot
55
Based on 228 comparable 2019-2023 GMC Sierra 1500 listings in CT, the average asking price is $38,549. This listing at $35,997 is $2,552 below average (7% below market). Comparable prices in CT range from $19,791 to $59,988. Similar vehicles spend an average of 55 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in CT
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)
2021 GMC Sierra 1500
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2021 GMC Sierra 1500
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2019 GMC Sierra 1500
AT4
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2021 GMC Sierra 1500
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Old Saybrook, CT
2021 GMC Sierra 1500
AT4
Stonington, CT
2021 GMC Sierra 1500
AT4
East Hartford, CT
2021 GMC Sierra 1500
Elevation
Manchester, CT
2019 GMC Sierra 1500
SLE
Branford, CT