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2025 GMC Sierra HD AT4
VIN
1GT4UPEYXSF329964
This 2025 GMC Sierra HD AT4 is listed at $66,394 with 30,790 miles in Portsmouth, NH.
GREAT DEAL
$5,814 below typical price
Asking $66,394 · typical market price $72,208 · based on 256 comparable same-build listings.
Market Price Range
Below market
$67,551
Typical price
$72,208
Above market
$76,990
Based on
256
comparable same-build listings.
This vehicle:
$66,394 — below the market range (typical price $72,208)
Market data as of August 16, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 6.6L · V8 · Diesel
- Drive
- 4WD/4-Wheel Drive/4x4
- Made by
- GENERAL MOTORS LLC
Safety
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Price history for this VIN
Price dropped $4,294 (−6.1%) over 55 days.
Jun 17, 2026 · $70,888
Aug 11, 2026 · $66,594
Asking prices recorded across 14 listing dates for VIN 1GT4UPEYXSF329964, spanning 55 days.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Portsmouth Chevrolet | Portsmouth, NH 3801 | $66,394 | 30,790 mi | 2026-06-18 |
| Key Chevrolet of Perry | Perry, FL 32348 | $70,888 | 30,787 mi | 2026-06-17 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Portsmouth Chevrolet | Portsmouth, NH 3801 | $68,894 | 30,790 mi | 2026-07-10 |
| Key Chrysler Dodge Jeep RAM of Marianna | Marianna, FL 32446 | $70,888 | 30,787 mi | 2026-06-30 |
| Key Chevrolet of Perry | Perry, FL 32348 | $70,888 | 30,787 mi | 2026-06-17 |
What would this 2025 GMC Sierra HD AT4 cost per month?
Estimate the monthly payment on a $66,394 vehicle. Move the numbers to match your own loan.
10% down
7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.
Loan term
Estimated monthly payment
$1,183
per month
60 months · 7.0% APR · $6,639 down
Amount financed
$59,755
Total interest
$11,225
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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