Vehicle Details
2021 GMC Sierra 2500HD
SLE
Parker, CO 80134
Is this 2021 GMC Sierra 2500HD SLE a good deal?
OAV verdict: Unscored
Why: Listed at $31,937, comparable market range $31,937–$31,937. Days on lot: 78 days (market average 61 days).
Market price position
$31,937 · only listing at this price
- Regional range
- $31,937 (0 listings)
- vs. market
- Exact match — no spread
- Comparable vehicles
- 0
Similar vehicles recently sold in an estimated 14–52 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.
Auto Mart Usa Parker
Parker, CO
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
Request availability and out-the-door price
OAV will route your inquiry to Auto Mart Usa Parker for current availability of this 2021 GMC Sierra 2500HD SLE 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 2500HD
Listing updated: Jun 28, 2026Listed by an independent dealer in Parker, CO · On lot for 78 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 2500HD SLE is listed at $31,937 by auto mart usa parker in Parker, CO 80134. It has 87,466 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 Parker market, the estimated market range is $31,937 to $31,937.
This vehicle has been on the lot for 78 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 Parker, CO 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:
- 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 Parker, CO, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT29ME70MF214212 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 CO
Comparable Vehicles
135
Average Price
$46,386
Price Range
$9,300–$65,299
Avg Days on Lot
61
Based on 135 comparable 2019-2023 GMC Sierra 2500HD listings in CO, the average asking price is $46,386. This listing at $31,937 is $14,449 below average (31% below market). Comparable prices in CO range from $9,300 to $65,299. Similar vehicles spend an average of 61 days on dealer lots in this market.
Similar GMC Sierra 2500HD Listings in CO
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