U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology · Patent Pending for Additional Innovations
OAV
2021 GMC Sierra 1500

Vehicle Details

VIN1GTP9EED4MZ441662
TrimAT4
Exterior ColorBlue
Drivetrain4WD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot7
Days on Market37

2021 GMC Sierra 1500

AT4

Great Deal
$38,90083,126 miles

Portsmouth, OH 45662

Market price position

40,488
41,490
38,900

$38,900 · $1,588 below market low

$40,488$41,490 comparable
Regional range
$40,488 – $41,490
vs. market low
— $1,588 (4% below)
Comparable vehicles
11
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1660 days.

Market Breakdown

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

Regional Range$40,488 – $41,490

Dealer Info

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Portsmouth, OH

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About This 2021 GMC Sierra 1500

Listing updated: May 6, 2026

Listed by a franchise dealer in Portsmouth, OH · On lot for 7 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 AT4 is listed at $38,900 by a franchise dealer in Portsmouth, OH 45662. It has 83,126 miles on the odometer. The exterior color is Blue. 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 a Great Deal — priced below market value. Based on 11 similar vehicles in the Portsmouth market, the estimated market range is $40,488 to $41,490.

This vehicle has been on the lot for 7 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

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:

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 Portsmouth, OH, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EED4MZ441662 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.

2021 GMC Sierra 1500 Market in OH

Comparable Vehicles

1,752

Average Price

$37,512

Price Range

$15,950–$64,988

Avg Days on Lot

43

Based on 1,752 comparable 2019-2023 GMC Sierra 1500 listings in OH, the average asking price is $37,512. This listing at $38,900 is $1,388 above average (4% above market). Comparable prices in OH range from $15,950 to $64,988. Similar vehicles spend an average of 43 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in OH

8 comparable vehicles with similar year and mileage