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Used
2018 GMC Sierra 3500 SLT trucks
for sale
near me
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Another satisfied customer 👍
Bought a 2017 Chevy Silverado 2500HD Duramax sales went above and beyond on getting me this truck they even delivered the truck and the paperwork to Kansas City didnt have to get off work and drive 2 hours to Higginsville Missouri 🤙
An overall nice truck but for a person at my size(5,11)
An overall nice truck but for a person at my size(5,11) the mirrors and posts really block the view. My tinted windows really amplify the problem. The hood also takes a bit of room for a short person. Its a comfortable ride and works well in my line of work in excavation. The sound muffler in the hood makes you think something is wrong but apparently its not.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
I have had to of these before and I drive the xxxx
Just what I was looking for and the price was right. The color was the same as the truck I traded in. We have purchased a bumper pull camper and now mountain passes will feel like flat roads!!
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Big Step Up
This is my first HEAVY DUTY truck and my first diesel. I have only had it a week and 3 days but it has already been on the job and been driven 1500 miles. I expected a much rougher ride than the Chevrolet 1/2 ton it replaced but must say I am pleasantly surprised. I compared ride quality to it's main HD competitors and this GMC 3500HD surpasses them. It has far more tech features than should be expected in a base model but I can appreciate the convenience especially for business. I love that it will project driving maps and directions from my iPhone onto its larger screen. I have not yet towed or seriously taxed its payload but the Duramax diesel is something to behold. Averaging 17.9 mpg over 1500 miles. The DEF fill could be a bit more convenient but putting it under the hood does keep DEF away from fuel filling and is not required often enough to be an issue.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
I have bought several vehicles from Kunes Stoughton.
I have bought several vehicles from Kunes Stoughton. Each experience keeps getting better and better. Everyone in the store is friendly, never pushy or all about the sale. They treat you like they’ve known you forever! Just traded in my vehicle for a new one and it was the best experience yet. Thank you to everyone at Kunes!
Unbelievable towing capacity.
The Denali version is absolutely what we was looking for. Towing capacity is awesome. Has plenty of room in back for kids or cargo. Would recommend this vehicle for anyone who tows trailers. Duramax is what they say it is with Allison transmission best vehicle on the market.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
New to us Truck Purchase
Juan is the Greatest sales person you could ever hope for, he was very patient with us and did everything he could to get us into a New truck for my wife. We did end up purchasing a 2017 Ram 1500 and are very happy with our purchase. Could not have asked for a better place to get a vehicle from
Capable truck with the right options
Drove well and plenty of power, the SLT is perfect for us with the 40-20-40 front seat and without the extras that we don't need that are on the Denali.
Vehicle information
Features
Reviews
1970 Ford Torino
Out of state buyer, I purchased my 1970 Ford Torino. My sales person was Terry throughout the whole process. Not sure other buyers in past didn’t do their research before buying but overall this company and sales person Terry took care of me and worked with me. I hired a Mechanic to look at the vehicle we came to an agreement that satisfied both of us. Had my car delivered and was very pleased with my purchase. Thank you so much. I’ve been waiting so long to get my old car and relive my past!
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Thank you to lorena, great customer service.
Thank you to lorena, great customer service. Fully explained everything, and left with an amazing vehicle! Orange Jeep renegade right in time for Halloween! You need a vehicle, highly recommend Lorena!
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
It's was great the people were very nice and helpful the
It's was great the people were very nice and helpful the people worked very hard to help me
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GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 SLT | 2 Good deals | |
| 2025 GMC Sierra 3500 SLT | $69,739 | 7 Great deals |
| 2024 GMC Sierra 3500 SLT | $62,748 | 30 Good deals |
About the 2018 GMC Sierra 3500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 0
- Transmission
- 6-Speed A/T
- Engine
- 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability)
How much does the 2018 GMC Sierra 3500 SLT cost?
The 2018 GMC Sierra 3500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 3500 SLT is $44,233, with pricing starting at $39,995.
What are some similar vehicles and competitors of the 2018 GMC Sierra 3500 SLT?
The 2018 GMC Sierra 3500 SLT compares to and/or competes against the following vehicles:
Is the 2018 GMC Sierra 3500 SLT reliable?
The 2018 GMC Sierra 3500 has an average reliability rating of 4.1 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 Sierra 3500 owners.
87% of drivers recommend this car
- Comfort
- 4.6
- Interior
- 4.8
- Performance
- 4.4
- Value
- 3.8
- Exterior
- 4.9
- Reliability
- 4.1
SLT (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Crew Cab 153.7" SLT | 2WD Crew Cab 167.7" SLT | 2WD Double Cab 158.1" SLT | 4WD Crew Cab 167.7" SLT | 4WD Double Cab 158.1" SLT | 2WD Crew Cab 153.7" SLT |
| Inventory price | |||||
| Starting at $54,500 | Starting at $51,500 | Starting at $49,300 | Starting at $54,700 | Starting at $52,500 | Starting at $51,400 |
| Combined MPG | |||||
| 0 | 0 | 0 | 0 | 0 | 0 |
| Engine | |||||
| 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
GMC Sierra 3500 trims
-
GMC Sierra 3500 2018 Denali
6 Great Deals out of 40 listings starting at $27,995
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.