Is the $35,997 price on this 2021 GMC Sierra 1500 Denali a good deal?

OAV rates this as Fair Price because the asking price of $35,997 is within the typical market range for this vehicle.

What is the average price for a 2021 GMC Sierra 1500 Denali in IL?

Based on 390 comparable listings in IL, the average asking price for a 2019-2023 GMC Sierra 1500 Denali is $46,304, with prices ranging from $26,372 to $79,145.

How long does a 2021 GMC Sierra 1500 Denali typically stay on dealer lots?

Comparable GMC Sierra 1500 Denali listings in IL spend an average of 72 days on dealer lots.

Where is this 2021 GMC Sierra 1500 Denali located?

This vehicle is listed in Plainfield, IL 60544. VIN: 1GTU9FED5MZ442800. Mileage: 99,167 miles.

What is the fair market price range for this 2021 GMC Sierra 1500 Denali?

OAV's Price-to-Market analysis estimates the fair market range is $31,911 to $47,998, based on 30 comparable vehicles.

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Vehicle Details

VIN1GTU9FED5MZ442800

TrimDenali

Exterior ColorBlue

Drivetrain4WD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot251

2021 GMC Sierra 1500 Denali

Denali

Fair Price

$35,99799,167 mi

Plainfield, IL 60544

Is this 2021 GMC Sierra 1500 Denali Denali a good deal?

OAV verdict: Fair Price

Why: Listed at $35,997, comparable market range $31,911–$47,998, based on 30 comparable listings. Days on lot: 251 days (market average 72 days).

Market price position

Lowest comparable ($)

31,911

Highest comparable ($)

47,998

This vehicle's price ($)

35,997

$35,997 · within market range

$31,911comparable$47,998

Regional range: $31,911 – $47,998
vs. market: $4,086 above low · $12,001 below high
Comparable vehicles: 30

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 18–73 days.

Verify before inquiring

This listing has been on market about 3.4x longer than typical for similar vehicles (cohort sells in 18–73 days; this one is at 251). Long days-on-lot on a fast-turn cohort can signal title concerns, mechanical issues, or pricing the dealer won't actually honor. Recommend a vehicle history report before spending more time.

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$31,911 – $47,998

Dealer Info

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Plainfield, IL

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About This 2021 GMC Sierra 1500 Denali

Listing updated: May 26, 2026

Listed by a franchise dealer in Plainfield, IL · On lot for 251 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 Denali Denali is listed at $35,997 by a franchise dealer in Plainfield, IL 60544. It has 99,167 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 Fair Price — priced at market value. Based on 30 similar vehicles in the Plainfield market, the estimated market range is $31,911 to $47,998.

This vehicle has been on the lot for 251 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 Plainfield, 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 1500 Denali 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 Plainfield, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTU9FED5MZ442800 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 Denali Market in IL

Comparable Vehicles

390

Average Price

$46,304

Price Range

$26,372–$79,145

Avg Days on Lot

Based on 390 comparable 2019-2023 GMC Sierra 1500 Denali listings in IL, the average asking price is $46,304. This listing at $35,997 is $10,307 below average (22% below market). Comparable prices in IL range from $26,372 to $79,145. Similar vehicles spend an average of 72 days on dealer lots in this market.