Is the $77,581 price on this 2026 GMC Sierra 2500HD a good deal?

OAV rates this as Fair Price because the asking price of $77,581 is within the typical market range for this vehicle.

What is the average price for a 2026 GMC Sierra 2500HD in IL?

Based on 1,125 comparable listings in IL, the average asking price for a 2024-2028 GMC Sierra 2500HD is $79,144, with prices ranging from $40,859 to $105,785.

How long does a 2026 GMC Sierra 2500HD typically stay on dealer lots?

Comparable GMC Sierra 2500HD listings in IL spend an average of 71 days on dealer lots.

Where is this 2026 GMC Sierra 2500HD located?

This vehicle is listed in Sullivan, IL 61951. VIN: 1GT4UPEY3TF314997. Mileage: mileage not reported.

What is the fair market price range for this 2026 GMC Sierra 2500HD?

OAV's Price-to-Market analysis estimates the fair market range is $69,600 to $91,480, based on 10 comparable vehicles.

No Photo Available

Vehicle Details

VIN1GT4UPEY3TF314997

TrimAT4

Exterior ColorWhite

Drivetrain4WD

Engine6.6L V8

TransmissionAutomatic

Fuel TypeDiesel

Inventory Typenew

MSRP$88,520

Days on Lot42

2026 GMC Sierra 2500HD

AT4

Fair Price

$77,581Mileage not verified

Sullivan, IL 61951

Is this 2026 GMC Sierra 2500HD AT4 a good deal?

OAV verdict: Fair Price

Why: Listed at $77,581, comparable market range $69,600–$91,480, based on 10 comparable listings. Days on lot: 42 days (market average 71 days).

Manufacturer MSRPPrimary

$88,520

This vehicle $77,581 · $10,939 (12%) below MSRP

MSRP is the manufacturer's suggested retail price. Discount from MSRP is OAV's primary deal metric for new vehicles; OAV's market comparables (MRP) and sold-price value (TRV) below are secondary validation. How OAV rates new-car deals.

Market price position

$77,581 · within market range

$69,600comparable$91,480

Regional range: $69,600 – $91,480
vs. market: $7,981 above low · $13,899 below high
Comparable vehicles: 10

Market Retail Price (MRP™)

$80,540

This vehicle $77,581 · $2,959 (4%) below MRP

MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.

True Retail Value (TRV™)

$83,637

This vehicle $77,581 · $6,056 (7%) below TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-27) — an estimate, not an appraisal. How TRV works.

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 11–58 days.

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.

Regional Range$69,600 – $91,480

Jackson Gmc

Sullivan, IL

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

View all vehicles from jackson gmc →

Request availability and out-the-door price

OAV will route your inquiry to Jackson Gmc for current availability of this 2026 GMC Sierra 2500HD 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 2026 GMC Sierra 2500HD

Listing updated: Jul 27, 2026

Listed by a franchise dealer in Sullivan, IL · On lot for 42 days · VIN verifiable at NHTSA

This new 2026 GMC Sierra 2500HD AT4 is listed at $77,581 by jackson gmc in Sullivan, IL 61951. 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 Fair Price — priced at market value. Based on 10 similar vehicles in the Sullivan market, the estimated market range is $69,600 to $91,480.

This vehicle has been on the lot for 42 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 Sullivan, 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 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 a franchise dealer in Sullivan, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT4UPEY3TF314997 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.

2026 GMC Sierra 2500HD Market in IL

Comparable Vehicles

1,125

Average Price

$79,144

Price Range

$40,859–$105,785

Avg Days on Lot

Based on 1,125 comparable 2024-2028 GMC Sierra 2500HD listings in IL, the average asking price is $79,144. This listing at $77,581 is $1,563 below average (2% below market). Comparable prices in IL range from $40,859 to $105,785. Similar vehicles spend an average of 71 days on dealer lots in this market.