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

2021 Chevrolet Silverado 1500 LT Trail Boss

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Vehicle Details

VIN3GCPYFED2MG421015
TrimLT Trail Boss
Exterior ColorBlue
Drivetrain4WD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot67

LT Trail Boss

Great Deal
$29,956103,570 mi

Castroville, TX 78009

Is this 2021 Chevrolet Silverado 1500 LT Trail Boss a good deal?

OAV verdict: Great Deal

Why: Listed at $29,956, comparable market range $30,053–$40,717, based on 27 comparable listings. Days on lot: 67 days (market average 171 days).

Market price position

$29,956 · $97 below market low

Comparable range
$30,053 – $40,717
vs. market low
— $97 (0% below)
Comparable vehicles
27

Market Retail Price (MRP™)

$35,385

This vehicle $29,956 · $5,429 (15%) 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™)

$32,662

This vehicle $29,956 · $2,706 (8%) below TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-08-10) — an estimate, not an appraisal. How TRV works.

Comparable vehicles nationally recently sold in an estimated 1657 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.

Local Range$32,502 – $32,502
Regional Range$30,053 – $40,717

North Park Chevrolet Castroville

Castroville, TX

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

About This 2021 Chevrolet Silverado 1500

Listing updated: Aug 10, 2026

Listed by a franchise dealer in Castroville, TX · On lot for 67 days · VIN verifiable at NHTSA

This used 2021 Chevrolet Silverado 1500 LT Trail Boss is listed at $29,956 by north park chevrolet castroville in Castroville, TX 78009. It has 103,570 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Blue. 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 27 comparable listings matched to this vehicle, the estimated market range is $30,053 to $40,717. These comparisons match year, make, and model and may currently span trims and configurations (trim-level matching is rolling out).

This vehicle has been on the lot for 67 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 Castroville, 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 Chevrolet Silverado 1500 against similar vehicles currently available in the local and regional market — same make, model, and year range (currently across available trims and configurations; trim-level matching is rolling out), 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 Castroville, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GCPYFED2MG421015 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 Chevrolet Silverado 1500 Market in TX

TX Market Listings

3,542

Average Price

$35,053

Price Range

$7,500–$78,600

Avg Days on Lot

171

Based on all 3,542 2019-2023 Chevrolet Silverado 1500 listings in the TX market, the average asking price is $35,053. This listing at $29,956 is $5,097 below the broader TX average (15% below the TX average). This is a wider, all-trim comparison across TX; OAV's price verdict above uses the closer comparable set. Comparable prices in TX range from $7,500 to $78,600. Similar vehicles spend an average of 171 days on dealer lots in this market.

Similar Chevrolet Silverado 1500 Listings in TX

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: LT Trail Boss — compare trims below)