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2026 GMC Sierra HD AT4
VIN
1GT4UPE77TF345550
This 2026 GMC Sierra HD AT4 is listed at $74,246 with 7 miles in Collinsville, IL.
FAIR PRICE
within $1,544 of the typical market price
Asking $74,246 · typical market price $75,790 · based on 539 comparable same-build listings.
Market Price Range
Below market
$71,320
Typical price
$75,790
Above market
$80,520
Based on
539
comparable same-build listings.
This vehicle:
$74,246 — within $1,544 of the typical market price ($75,790)
Market data as of August 16, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 6.6L · V8 · Gasoline
- 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 $377 (−0.5%) over 1 day.
Aug 12, 2026 · $74,246
Aug 13, 2026 · $73,869
Asking prices recorded across 2 listing dates for VIN 1GT4UPE77TF345550, spanning 1 day.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Laura Buick GMC | Collinsville, IL 62234 | $74,246 | 7 mi | 2026-08-12 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Laura Buick GMC | Collinsville, IL 62234 | $73,869 | — | 2026-08-12 |
What would this 2026 GMC Sierra HD AT4 cost per month?
Estimate the monthly payment on a $74,246 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
$1,323
per month
60 months · 7.0% APR · $7,425 down
Amount financed
$66,821
Total interest
$12,559
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.
Watch the price on this model
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