Vehicle Details
2020 GMC Sierra 3500HD
AT4
Burien, WA 98168
Is this 2020 GMC Sierra 3500HD AT4 a good deal?
OAV verdict: Unscored
Why: Listed at $48,900, comparable market range $48,900–$48,900. Days on lot: 196 days (market average 78 days).
Market price position
$48,900 · only listing at this price
- Regional range
- $48,900 (0 listings)
- vs. market
- Exact match — no spread
- Comparable vehicles
- 0
Similar vehicles recently sold in an estimated 12–62 days.
- This listing has been on market about 3.2x longer than typical for similar vehicles (cohort sells in 12–62 days; this one is at 196). 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.
Legend Auto Sales Burien
Burien, WA
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 Legend Auto Sales Burien for current availability of this 2020 GMC Sierra 3500HD AT4 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 2020 GMC Sierra 3500HD
Listing updated: Jun 25, 2026Listed by an independent dealer in Burien, WA · On lot for 196 days · VIN verifiable at NHTSA
This used 2020 GMC Sierra 3500HD AT4 is listed at $48,900 by legend auto sales burien in Burien, WA 98168. It has 99,000 miles on the odometer. 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 Burien market, the estimated market range is $48,900 to $48,900.
This vehicle has been on the lot for 196 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 Burien, WA 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 2020 GMC Sierra 3500HD 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 Burien, WA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT49VEY4LF280817 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.
2020 GMC Sierra 3500HD Market in WA
Comparable Vehicles
132
Average Price
$51,723
Price Range
$29,971–$74,988
Avg Days on Lot
78
Based on 132 comparable 2018-2022 GMC Sierra 3500HD listings in WA, the average asking price is $51,723. This listing at $48,900 is $2,823 below average (5% below market). Comparable prices in WA range from $29,971 to $74,988. Similar vehicles spend an average of 78 days on dealer lots in this market.
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