U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2021 GMC Sierra 2500HD

Vehicle Details

VIN1GT19MEY7MF294337
TrimSLE
Exterior ColorBlack
Drivetrain4WD
Engine6.6L V8
TransmissionAutomatic
Fuel TypeDiesel
Inventory Typeused
Days on Lot68

2021 GMC Sierra 2500HD

SLE

Unscored
$43,39094,691 miles

Naperville, IL 60540

Market price position

43,390
43,390
43,390

$43,390 · only listing at this price

$43,390 — single data point
Regional range
$43,390 (0 listings)
vs. market
Exact match — no spread
Comparable vehicles
0
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1262 days.

Dealer Info

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Naperville, IL

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About This 2021 GMC Sierra 2500HD

Listing updated: May 14, 2026

Listed by a franchise dealer in Naperville, IL · On lot for 68 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 2500HD SLE is listed at $43,390 by a franchise dealer in Naperville, IL 60540. It has 94,691 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 Unscored due to insufficient comparable data. Based on available similar vehicles in the Naperville market, the estimated market range is $43,390 to $43,390.

This vehicle has been on the lot for 68 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 Naperville, IL 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, 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 Naperville, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT19MEY7MF294337 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 2500HD Market in IL

Comparable Vehicles

167

Average Price

$50,065

Price Range

$19,995–$67,890

Avg Days on Lot

83

Based on 167 comparable 2019-2023 GMC Sierra 2500HD listings in IL, the average asking price is $50,065. This listing at $43,390 is $6,675 below average (13% below market). Comparable prices in IL range from $19,995 to $67,890. Similar vehicles spend an average of 83 days on dealer lots in this market.

Similar GMC Sierra 2500HD Listings in IL

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