2026 GMC Sierra 2500HD SLT

Listed by a franchise dealer in Portsmouth, NH · On lot for 30 days · VIN verifiable at NHTSA

This new 2026 GMC Sierra 2500HD SLT is listed at $67,540 by key auto group in Portsmouth, NH 03801. The exterior color is White. It features a 4WD drivetrain with a 6.6L V8 engine and Automatic transmission.

OAV's independent, evidence-backed Price-to-Market analysis rates this vehicle as a Great Deal — priced below market value. Based on 74 comparable listings matched to this vehicle, the estimated market range is $68,084 to $86,848. These comparisons match year, make, model, and market, using trim where trim data supports it. OAV does not adjust comparables for odometer — where mileage would distort a verdict, it withholds one instead.

This vehicle has been on the lot for 30 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 Portsmouth, NH trucks market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

• View the full Portsmouth, NH trucks market →
• All vehicles in Portsmouth, NH →
• All vehicles in NH →
• All vehicles from this dealer →

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, using trim where trim data supports it. OAV does not adjust comparables for odometer; on very high-mileage vehicles it withholds a verdict rather than overstate a discount the odometer explains. 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 Portsmouth, NH, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT4UNE71TF348576 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 NH

Based on all 310 2024-2028 GMC Sierra 2500HD listings in the NH market, the average asking price is $76,024. This listing at $67,540 is $8,484 below the broader NH average (11% below the NH average). This is a wider, all-trim comparison across NH; OAV's price verdict above uses the closer comparable set. Comparable prices in NH range from $47,324 to $108,654. Similar vehicles spend an average of 74 days on dealer lots in this market.

Similar GMC Sierra 2500HD Listings in NH

8 similar listings shown (closest matches within ±2 model years) (subject trim: SLT — compare trims below)