U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
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Vehicle Details

VIN3GTP9EED0MG413504
TrimAT4
Exterior ColorBlack
Drivetrain4WD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot1194

2021 GMC Sierra 1500

AT4

Great Deal
$26,9001,949 mi

McAllen, TX 78503

Is this 2021 GMC Sierra 1500 AT4 a good deal?

OAV verdict: Great Deal

Why: Listed at $26,900, comparable market range $32,800–$46,995, based on 69 comparable listings. Days on lot: 1,194 days (market average 160 days).

Market price position

$26,900 · $5,900 below market low

$32,800comparable$46,995
Regional range
$32,800 – $46,995
vs. market low
— $5,900 (18% below)
Comparable vehicles
69

Market Retail Price (MRP™)

$39,898

This vehicle $26,900 · $12,998 (33%) 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™)

$47,136

This vehicle $26,900 · $20,236 (43%) 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 1553 days.

Verify before inquiring
  • This listing has been on market about 22.5x longer than typical for similar vehicles (cohort sells in 15–53 days; this one is at 1194). 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 are rebuilt from the market snapshot shown above.

Regional Range$32,800 – $46,995

Jaramillo Auto Sales, Llc

McAllen, TX

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

View all vehicles from jaramillo auto sales, llc

Request availability and out-the-door price

OAV will route your inquiry to Jaramillo Auto Sales, Llc for current availability of this 2021 GMC Sierra 1500 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 2021 GMC Sierra 1500

Listing updated: Jul 27, 2026

Listed by an independent dealer in McAllen, TX · On lot for 1194 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 AT4 is listed at $26,900 by jaramillo auto sales, llc in McAllen, TX 78503. It has 1,949 miles on the odometer. The exterior color is Black. It features a 4WD drivetrain with a 5.3L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as a Great Deal — priced below market value. Based on 69 similar vehicles in the McAllen market, the estimated market range is $32,800 to $46,995.

This vehicle has been on the lot for 1194 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 McAllen, 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 2021 GMC Sierra 1500 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:

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 McAllen, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP9EED0MG413504 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.

2021 GMC Sierra 1500 Market in TX

Comparable Vehicles

1,440

Average Price

$40,099

Price Range

$11,900–$102,495

Avg Days on Lot

160

Based on 1,440 comparable 2019-2023 GMC Sierra 1500 listings in TX, the average asking price is $40,099. This listing at $26,900 is $13,199 below average (33% below market). Comparable prices in TX range from $11,900 to $102,495. Similar vehicles spend an average of 160 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in TX

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)