Is the $34,432 price on this 2021 GMC Sierra 1500 a good deal?

OAV rates this as Fair Price because the asking price of $34,432 is within the typical market range for this vehicle.

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

Based on 1,262 comparable listings in IL, the average asking price for a 2019-2023 GMC Sierra 1500 is $39,628, with prices ranging from $16,000 to $67,998.

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

Comparable GMC Sierra 1500 listings in IL spend an average of 53 days on dealer lots.

Where is this 2021 GMC Sierra 1500 located?

This vehicle is listed in Orland Park, IL 60467. VIN: 1GTP8DED1MZ305521. Mileage: 43,990 miles.

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

OAV's Price-to-Market analysis estimates the fair market range is $29,995 to $40,348, based on 34 comparable vehicles.

No Photo Available

Vehicle Details

VIN1GTP8DED1MZ305521

TrimSLT

Exterior ColorGray

DrivetrainRWD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot285

2021 GMC Sierra 1500

SLT

Fair Price

$34,43243,990 mi

Orland Park, IL 60467

Is this 2021 GMC Sierra 1500 SLT a good deal?

OAV verdict: Fair Price

Why: Listed at $34,432, comparable market range $29,995–$40,348, based on 34 comparable listings. Days on lot: 285 days (market average 53 days).

Market price position

Lowest comparable ($)

29,995

Highest comparable ($)

40,348

This vehicle's price ($)

34,432

$34,432 · within market range

$29,995comparable$40,348

Regional range: $29,995 – $40,348
vs. market: $4,437 above low · $5,916 below high
Comparable vehicles: 34

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 14–60 days.

Verify before inquiring

This listing has been on market about 4.8x longer than typical for similar vehicles (cohort sells in 14–60 days; this one is at 285). 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$29,995 – $40,348

Zeigler Auto Group

Orland Park, IL

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

View all vehicles from zeigler auto group →

Request availability and out-the-door price

OAV will route your inquiry to Zeigler Auto Group for current availability of this 2021 GMC Sierra 1500 SLT 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: Jun 26, 2026

Listed by a franchise dealer in Orland Park, IL · On lot for 285 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 SLT is listed at $34,432 by zeigler auto group in Orland Park, IL 60467. It has 43,990 miles on the odometer. The exterior color is Gray. It features a RWD 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 34 similar vehicles in the Orland Park market, the estimated market range is $29,995 to $40,348.

This vehicle has been on the lot for 285 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 Orland Park, 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 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 Orland Park, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP8DED1MZ305521 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 IL

Comparable Vehicles

1,262

Average Price

$39,628

Price Range

$16,000–$67,998

Avg Days on Lot

Based on 1,262 comparable 2019-2023 GMC Sierra 1500 listings in IL, the average asking price is $39,628. This listing at $34,432 is $5,196 below average (13% below market). Comparable prices in IL range from $16,000 to $67,998. Similar vehicles spend an average of 53 days on dealer lots in this market.