2018 GMC Sierra 3500HD Denali
CarBuyingTips Insights
Before you make an offer
Dealer cost — not sticker — is the number that matters. Our free spreadsheet works it out for you in about ten minutes.
Calculate true dealer cost
1 / 30
$35,725$37,985
UsedPrice cut 6%
$2,774 below the MSRP of $38,499
On the market 133 days
Dealermart - Corpus Christi
2633 S Padre Island Dr, Corpus Christi, TX
Stock #P1840A
CarBuyingTips does not sell cars. Listings come from dealer inventory feeds and prices change often — always confirm with the seller.
Specifications
- Year
- 2018
- Make
- GMC
- Model
- Sierra 3500HD
- Trim
- Denali
- Body style
- Truck
- Mileage
- 154,888 mi
- Engine
- 6.6L 8-cylinder
- Horsepower
- 360 hp
- Torque
- 380 lb-ft
- Cylinders
- 8
- Transmission
- Automatic
- Drivetrain
- 4WD
- Fuel
- Diesel
- Doors
- 4
- Seats
- 5
- Exterior color
- Silver
- Interior color
- Black
- MSRP
- $38,499
- VIN
- 1GT42YEY1JF124012
Price history
| Date | Listed price |
|---|---|
| Aug 1, 2026 | $35,725 ↓ |
| Jul 11, 2026 | $36,211 ↓ |
| Jul 5, 2026 | $36,985 ↓ |
| Jul 2, 2026 | $37,985 |
| Jun 30, 2026 | $37,985 ↓ |
| Jun 8, 2026 | $38,105 |
| Jun 7, 2026 | $38,105 ↑ |
| May 27, 2026 | $37,143 |
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