2021 GMC Sierra SLT
3GTU9DEL9MG163779
This 2021 GMC Sierra SLT is listed at $33,227 with 94,256 miles in Richardson, TX.
Market Price Range
Vehicle Decode
- Body
- Pickup
- Engine
- 6.2L · V8 · Gasoline
- Drive
- 4WD/4-Wheel Drive/4x4
- Doors
- 4
- Made by
- GENERAL MOTORS LLC
Safety
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Price history for this VIN
Asking price over time
Asking prices recorded across 15 listing dates for VIN 3GTU9DEL9MG163779, spanning 14 months.
Safety & ownership
EPA fuel economy (MPG)
Model-level data for the 2021 GMC Sierra from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed July 28, 2026.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Legacy Autos | Richardson, TX 75080 | $33,227 | 94,256 mi | 2026-08-03 |
| Alpha Autoplex | Dallas, TX 75247 | $33,227 | 94,256 mi | 2026-01-30 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Legacy Autos | Richardson, TX 75080 | $37,995 | 94,256 mi | 2026-07-31 |
| South Dallas Mitsubishi | Dallas, TX 75224 | $34,874 | 94,256 mi | 2026-04-23 |
| Alpha Autoplex | Dallas, TX 75247 | $37,995 | 94,255 mi | 2026-01-30 |
| Alpha Autoplex | Watauga, TX 76148 | $37,995 | 94,255 mi | 2026-01-06 |
What would this 2021 GMC Sierra SLT cost per month?
Estimate the monthly payment on a $33,227 vehicle. Move the numbers to match your own loan.
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
Prices move every week. We'll email you when the typical asking price for a 2021 GMC Sierra moves 3% or more — no account, one-click unsubscribe.
We only email you about this vehicle's price. Unsubscribe from any message.
