Used 2018 GMC Sierra 2500HD for Sale near Houston, TX
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CarGurus Analysis:
2018 GMC Sierra 2500HD
With 90 currently listed for sale near Houston, TX and an average price of $35,040.00, 18.9% of 2018 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 2500HD 3.8 / 5 stars.
57.8% of 2018 Sierra 2500HD models on CarGurus are accident free.
The 2018 GMC Sierra 2500HD is recognized for its powerful performance, comfortable seating, and smooth ride, alongside its spacious interior and a variety of options.
CarGurus Analysis: 2018 GMC Sierra 2500HD

Summary
With 90 currently listed for sale near Houston, TX and an average price of $35,040.00, 18.9% of 2018 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 2500HD 3.8 / 5 stars.
57.8% of 2018 Sierra 2500HD models on CarGurus are accident free.
The 2018 GMC Sierra 2500HD is recognized for its powerful performance, comfortable seating, and smooth ride, alongside its spacious interior and a variety of options.
Why it stands out
The 2018 GMC Sierra 2500HD stands out in the heavy-duty pickup truck segment due to its robust design and upscale features that cater to both work and leisure driving. This model offers powerful performance with multiple engine options, including a commanding Duramax diesel variant, catering to those needing substantial towing capabilities. Notably, it has a spacious cabin that provides comfort for long trips, making it appealing to families and professionals alike. However, potential buyers should consider the reported high prices and concerns about rust on the undercarriage, which some owners have mentioned can affect the vehicle's reliability, especially under heavy-duty conditions. The Sierra 2500HD's combination of comfort, technology, and performance makes it a compelling choice for anyone in the market for a heavy-duty pickup.
Other model years to consider
- Average price: $79,089.00
- Good/great deal percentage: 29.8%
- User rating: 5 / 5
- Total listings: 520
- Average price: $47,438.00
- Good/great deal percentage: 22.0%
- User rating: 5 / 5
- Total listings: 223
- Average price: $73,420.00
- Good/great deal percentage: 30.7%
- User rating: 4 / 5
- Total listings: 544
This analysis is based on CarGurus' proprietary market data from May 12, 2026, CarGurus experts' opinions, and generative AI.
Relevant articles

2026 GMC Sierra 2500HD Pricing, Specs, and Release Date
Aside from a freshened color palette and broader availability of the trick MultiPro Tailgate, the 2026 GMC Sierra 2500HD full-size pickup truck soldiers on as a premium workhorse capable of towing up to 20,000 pounds in luxurious style.

2025 GMC Sierra 2500HD Pricing, Specs, and Release Date
Slotted between the light-duty 1500 and the ultra-tough 3500HD, the 2025 GMC Sierra 2500HD balances immense capability with the comfort and latest amenities expected from today's truck buyers. Upgrades for 2025 include a newly standard trailer brake controller.

Who Makes GMC Cars?
GMC is an American automaker that builds premium trucks and SUVs with capability and comfort as selling points. GMC is a division of General Motors and all of its vehicles share platforms with other GM products. Certain products, like its trucks, are very closely related to Chevrolet products.
3.8 Overall rating
Filter by rating
Thurman S
Reviewed a 2018 GMC Sierra 2500HD on Mar 27, 2025
Entire undercarriage is covered in rust. All control arms and linkages are in extremely poor condition from rust to the point I wouldn’t feel safe driving it. Let alone using it for its intended purpose for heavy duty towing.
Bill S
Reviewed a 2018 GMC Sierra 2500HD on Jan 4, 2023
Powerful, dependable, quiet interior and looks great! The duramax with the Alison transmission is the best diesel on market!
Anonymous
Reviewed a 2018 GMC Sierra 2500HD on Oct 26, 2020
So far great truck, lots of options and pulls really good for a gas engine, comfortable seats and plenty of leg room front and back
Joe H
Reviewed a 2018 GMC Sierra 2500HD on Feb 15, 2023
Very comfortable nice riding truck. Seems to get fairly decent fuel mileage.
2018 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| Base LB | $35,000 |
| Base Double Cab SB 4WD | $40,100 |
| SLE Double Cab SB 4WD | $46,300 |
| SLT Double Cab SB 4WD | $50,900 |
| Base Crew Cab SB 4WD | $41,700 |
| SLE Crew Cab SB 4WD | $48,400 |
| SLT Crew Cab SB 4WD | $53,400 |
| Denali Crew Cab SB 4WD | $59,600 |
2018 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Sierra 2500HD prices has changed over time.
See more price trends2018 GMC Sierra 2500HD Pricing Analysis: Houston, TX Market Report
Pricing by Nearby Locations
Market Area: Houston, TX
Key Insights
- Highest Price in Victoria, TX: At $43,995, Victoria stands out as the most expensive market, likely reflecting higher demand or limited inventory.
- Lowest Price in Galveston, TX: The city has the lowest average price at $35,240, suggesting more competition or better pricing strategies in this area.
- Inventory Comparison: Markets like Katy, TX (89 listings) and Conroe, TX (95 listings) exhibit average pricing around $38,720–$40,221, indicating a moderate relationship between inventory levels and price stability.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Victoria, TX | 80 | $43,995 |
| Katy, TX | 89 | $40,221 |
| Conroe, TX | 95 | $38,720 |
| Lufkin, TX | 90 | $36,440 |
| Huntsville, TX | 90 | $34,440 |
| Galveston, TX | 83 | $35,240 |
Pricing Analysis by Model Year
Key Insights
- Significant Premium on Newest Models: The 2026 model commands a remarkable 94.1% price increase over its original MSRP, indicating high demand for the latest offerings.
- Steady Depreciation: Older models like the 2015 Sierra show a decline of -21.5% compared to MSRP, reflecting more typical depreciation as they age.
- Stability in Recent Years: For models from 2020 to 2022, average prices are consistently within the range of $47,039 to $56,024, suggesting a stable demand for slightly older models.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $47,000 | $91,050 | +94.1% |
| 2025 | $46,300 | $77,913 | +68.5% |
| 2024 | $45,400 | $72,875 | +60.5% |
| 2023 | $42,200 | $56,024 | +32.8% |
| 2022 | $36,200 | $49,591 | +37.0% |
| 2021 | $36,200 | $50,375 | +39.1% |
| 2020 | $35,800 | $47,039 | +31.3% |
| 2019 | $38,200 | $34,003 | -11.0% |
| 2017 | $34,190 | $27,654 | -19.1% |
| 2016 | $33,535 | $34,592 | +3.2% |
| 2015 | $33,195 | $26,079 | -21.5% |
These recommendations are based on CarGurus' proprietary market data from May 14, 2026, CarGurus experts' opinions, and generative AI.






![[GBA] Onyx Black 2018 GMC Sierra 2500HD Denali Crew Cab SB 4WD Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/04/23/22/51/2018_gmc_sierra_2500hd-pic-8883073964468378653-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)

