2021 GMC Sierra 2500HD AT4
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1 / 40
$42,989$46,239
UsedPrice cut 5%
$1,128 below the MSRP of $44,117
On the market 23 days
Tustin Buick GMC
1 Auto Center Dr, Tustin, CA
Stock #17004T
CarBuyingTips does not sell cars. Listings come from dealer inventory feeds and prices change often — always confirm with the seller.
Specifications
- Year
- 2021
- Make
- GMC
- Model
- Sierra 2500HD
- Trim
- AT4
- Body style
- Truck
- Mileage
- 134,750 mi
- Engine
- 6.6L 8-cylinder
- Horsepower
- 401 hp
- Torque
- 464 lb-ft
- Cylinders
- 8
- Transmission
- Automatic
- Drivetrain
- 4WD
- Fuel
- Diesel
- Doors
- 4
- Seats
- 5
- Exterior color
- Red
- Interior color
- Black
- MSRP
- $44,117
- VIN
- 1GT49PEY8MF313542
Price history
| Date | Listed price |
|---|---|
| Sep 4, 2026 | $42,989 ↓ |
| Aug 27, 2026 | $43,739 ↓ |
| Aug 24, 2026 | $44,117 ↓ |
| Aug 21, 2026 | $44,239 ↓ |
| Aug 17, 2026 | $45,739 ↑ |
| Aug 16, 2026 | $45,617 |
| Aug 16, 2026 | $45,617 ↓ |
| Aug 15, 2026 | $45,739 |
Before you buy this GMC
- Get the VIN checked before you go. A clean history report is the cheapest insurance you can buy. Vehicle history reports
- Arrange your own financing first so the finance office has to beat a rate, not set one. Car loan guide
- Know the 10 dealer scams that happen after you agree on price. Top 10 dealer scams
- Never discuss a trade-in until the purchase price is locked. Trade-in tips