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2026 GMC Sierra HD AT4
VIN
1GT4UPEY2TF337509
This 2026 GMC Sierra HD AT4 is listed at $88,560 with 5 miles in Mt Vernon, IL.
ABOVE TYPICAL
$2,693 above typical price
Asking $88,560 · 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:
$88,560 — $2,693 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 $1,299 (−1.4%) over 39 days.
Jul 1, 2026 · $89,859
Aug 9, 2026 · $88,560
Asking prices recorded across 4 listing dates for VIN 1GT4UPEY2TF337509, spanning 39 days.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Schmidt Chevrolet | Mt Vernon, IL 62864 | $88,560 | 5 mi | 2026-08-09 |
| Schmidt Chevrolet | Mount Vernon, IL 62864 | $89,859 | 5 mi | 2026-07-01 |
What would this 2026 GMC Sierra HD AT4 cost per month?
Estimate the monthly payment on a $88,560 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
$1,578
per month
60 months · 7.0% APR · $8,856 down
Amount financed
$79,704
Total interest
$14,976
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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