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2026 GMC Sierra HD AT4
VIN
1GT4UPEY6TF338341
This 2026 GMC Sierra HD AT4 is listed at $88,165 with 1 miles in Brookings, SD.
ABOVE TYPICAL
$2,298 above typical price
Asking $88,165 · typical market price $85,867 · based on 1,767 comparable same-build listings.
Market Price Range
Below market
$80,855
Typical price
$85,867
Above market
$91,246
Based on
1767
comparable same-build listings.
This vehicle:
$88,165 — $2,298 above the typical market price ($85,867)
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 $6,100 (−6.8%) over 44 days.
Jul 2, 2026 · $89,414
Aug 15, 2026 · $83,314
Asking prices recorded across 4 listing dates for VIN 1GT4UPEY6TF338341, spanning 44 days.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Brookings Auto Mall | Brookings, SD 57006 | $88,165 | 1 mi | 2026-07-03 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Brookings Auto Mall | Brookings, SD 57006 | $84,205 | 1 mi | 2026-07-16 |
What would this 2026 GMC Sierra HD AT4 cost per month?
Estimate the monthly payment on a $88,165 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
$1,571
per month
60 months · 7.0% APR · $8,817 down
Amount financed
$79,348
Total interest
$14,912
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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