Is the $40,420 price on this 2019 GMC Sierra 2500 Denali HD a good deal?

OAV rates this as Fair Price because the asking price of $40,420 is within the typical market range for this vehicle.

What is the average price for a 2019 GMC Sierra 2500 Denali HD in TX?

Based on 225 comparable listings in TX, the average asking price for a 2017-2021 GMC Sierra 2500 Denali HD is $48,286, with prices ranging from $27,995 to $74,991.

How long does a 2019 GMC Sierra 2500 Denali HD typically stay on dealer lots?

Comparable GMC Sierra 2500 Denali HD listings in TX spend an average of 50 days on dealer lots.

Where is this 2019 GMC Sierra 2500 Denali HD located?

This vehicle is listed in Katy, TX 77450. VIN: 1GT12SEY9KF186324. Mileage: 124,511 miles.

What is the fair market price range for this 2019 GMC Sierra 2500 Denali HD?

OAV's Price-to-Market analysis estimates the fair market range is $30,123 to $46,219, based on 20 comparable vehicles.

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Vehicle Details

VIN1GT12SEY9KF186324

TrimDenali

Exterior ColorBlack

Drivetrain4WD

Engine6.6L V8

TransmissionAutomatic

Fuel TypeDiesel

Inventory Typeused

Days on Lot7

2019 GMC Sierra 2500 Denali HD

Denali

Fair Price

$40,420124,511 mi

Katy, TX 77450

Is this 2019 GMC Sierra 2500 Denali HD Denali a good deal?

OAV verdict: Fair Price

Why: Listed at $40,420, comparable market range $30,123–$46,219, based on 20 comparable listings. Days on lot: 7 days (market average 50 days).

Market price position

$40,420 · within market range

$30,123comparable$46,219

Regional range: $30,123 – $46,219
vs. market: $10,297 above low · $5,799 below high
Comparable vehicles: 20

Market Retail Price (MRP™)

$38,171

This vehicle $40,420 · $2,249 (6%) above 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™)

$43,682

This vehicle $40,420 · $3,262 (7%) below TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-19) — an estimate, not an appraisal. How TRV works.

Demand-Verified· Backed by recent sales data

Faster-than-average sell-through

Similar vehicles recently sold in an estimated 13–54 days.

What does Demand-Verified mean?

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges update continuously.

Regional Range$30,123 – $46,219

Toyota Of Katy

Katy, TX

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

View all vehicles from toyota of katy →

Request availability and out-the-door price

OAV will route your inquiry to Toyota Of Katy for current availability of this 2019 GMC Sierra 2500 Denali HD Denali 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 2019 GMC Sierra 2500 Denali HD

Listing updated: Jul 18, 2026

Listed by a franchise dealer in Katy, TX · On lot for 7 days · VIN verifiable at NHTSA

This used 2019 GMC Sierra 2500 Denali HD Denali is listed at $40,420 by toyota of katy in Katy, TX 77450. It has 124,511 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 Fair Price — priced at market value. Based on 20 similar vehicles in the Katy market, the estimated market range is $30,123 to $46,219.

This vehicle has been on the lot for 7 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 Katy, TX 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 2019 GMC Sierra 2500 Denali HD 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 Katy, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT12SEY9KF186324 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 updated continuously; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2019 GMC Sierra 2500 Denali HD Market in TX

Comparable Vehicles

225

Average Price

$48,286

Price Range

$27,995–$74,991

Avg Days on Lot

Based on 225 comparable 2017-2021 GMC Sierra 2500 Denali HD listings in TX, the average asking price is $48,286. This listing at $40,420 is $7,866 below average (16% below market). Comparable prices in TX range from $27,995 to $74,991. Similar vehicles spend an average of 50 days on dealer lots in this market.