2021 GMC Sierra 3500HD Base

Listed by an independent dealer in Dupo, IL · On lot for 12 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 3500HD Base is listed at $40,990 by sld enterprises llc in Dupo, IL 62240. It has 70,747 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is White. 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. OAV has not assigned a reliable comparable market range for this vehicle yet — the comparable set is too limited.

This vehicle has been on the lot for 12 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 Dupo, 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.

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How this deal is rated

OAV compares this 2021 GMC Sierra 3500HD against similar vehicles currently available in the local and regional market — same make, model, and year range (currently across available trims and configurations; trim-level matching is rolling out), 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 an independent dealer in Dupo, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GD49SE73MF311509 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 processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2021 GMC Sierra 3500HD Market in IL

Based on all 20 2019-2023 GMC Sierra 3500HD listings in the IL market, the average asking price is $48,367. Because OAV has not assigned a reliable price verdict to this listing, it does not state how it compares to this broader average. Comparable prices in IL range from $35,991 to $63,374. Similar vehicles spend an average of 56 days on dealer lots in this market.

Similar GMC Sierra 3500HD Listings in IL

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: Base — compare trims below)