U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2026 GMC Sierra 3500HD

Vehicle Details

VIN1GD3USEY9TF125801
TrimPro
Exterior ColorWhite
Drivetrain4WD
Engine6.6L V8
TransmissionAutomatic
Fuel TypeDiesel
Inventory Typenew
MSRP$65,136
Days on Lot91

2026 GMC Sierra 3500HD

Pro

Unscored
$65,13613 miles

Quincy, IL 62305

Market price position

53,550
62,995
65,136

$65,136 · $2,141 above market high

$53,550comparable$62,995
Regional range
$53,550 – $62,995
vs. market high
+ $2,141 (3% above)
Comparable vehicles
5
Demand-Verified· Backed by recent sales data
High Demand

Similar vehicles recently sold in an estimated 833 days.

What does Demand-Verified mean?

Verify before inquiring
  • This listing has been on market about 2.8x longer than typical for similar vehicles (cohort sells in 8–33 days; this one is at 91). 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.

Local Range$53,550 – $62,995
Regional Range$53,550 – $62,995

Dealer Info

Hidden
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Quincy, IL

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About This 2026 GMC Sierra 3500HD

Listing updated: May 14, 2026

Listed by a franchise dealer in Quincy, IL · On lot for 91 days · VIN verifiable at NHTSA

This new 2026 GMC Sierra 3500HD Pro is listed at $65,136 by a franchise dealer in Quincy, IL 62305. It has 13 miles on the odometer. 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. Based on 5 similar vehicles in the Quincy market, the estimated market range is $53,550 to $62,995. The local market range in IL is $53,550 to $62,995.

This vehicle has been on the lot for 91 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 Quincy, 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 2026 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:

This rating refreshes daily as inventory enters and leaves the market. The dealer on this listing has not yet activated on OAV, so the business name and contact details are anonymized here. Activated (paying) dealers appear with their verified business name and a Verified badge.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Quincy, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GD3USEY9TF125801 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.

2026 GMC Sierra 3500HD Market in IL

Comparable Vehicles

603

Average Price

$78,111

Price Range

$46,691–$116,216

Avg Days on Lot

70

Based on 603 comparable 2024-2028 GMC Sierra 3500HD listings in IL, the average asking price is $78,111. This listing at $65,136 is $12,975 below average (17% below market). Comparable prices in IL range from $46,691 to $116,216. Similar vehicles spend an average of 70 days on dealer lots in this market.

Similar GMC Sierra 3500HD Listings in IL

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Pro — compare trims below)