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2026 GMC Sierra HD AT4
VIN
1GT1UPEY0TF139028
This 2026 GMC Sierra HD AT4 is listed at $77,391 with 7,435 miles in Fond Du Lac, WI.
FAIR PRICE
within $607 of the typical market price
Asking $77,391 · typical market price $77,998 · based on 11 comparable same-build listings.
Market Price Range
Below market
$74,995
Typical price
$77,998
Above market
$79,490
Based on
11
comparable same-build listings.
This vehicle:
$77,391 — within $607 of the typical market price ($77,998)
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 $6,606 (−7.9%) over 4 months.
Apr 13, 2026 · $83,997
Aug 16, 2026 · $77,391
Asking prices recorded across 11 listing dates for VIN 1GT1UPEY0TF139028, spanning 4 months.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Lenz Truck - Fond du Lac, WI | Fond Du Lac, WI 54935 | $77,391 | 7,435 mi | 2026-08-16 |
| Lenz Sales & Service, Inc. | Fond Du Lac, WI 54935 | $76,992 | 7,435 mi | 2026-04-14 |
| Lenz Truck Center | Fond du Lac, WI 54935 | $79,991 | 7,435 mi | 2026-04-14 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Lenz Truck - Fond du Lac, WI | Fond Du Lac, WI 54935 | $80,390 | 7 mi | 2026-08-10 |
| Lenz Truck of Fond du Lac | Fond Du Lac, WI 54935 | $80,390 | 7,435 mi | 2026-04-15 |
| Lenz Truck Center | Fond du Lac, WI 53928 | $84,998 | 7,420 mi | 2026-04-14 |
What would this 2026 GMC Sierra HD AT4 cost per month?
Estimate the monthly payment on a $77,391 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
$1,379
per month
60 months · 7.0% APR · $7,739 down
Amount financed
$69,652
Total interest
$13,088
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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