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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
Easy Peasy
I would like to thank Juan for his attention during the purchase process. The whole thing took much less time then expected and was transparent throughout
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
Excellent service by Internet Sales Mgr John.
Excellent service by Internet Sales Mgr John. Dealership was very competitive. Vehicle purchase qualifies for the new 6000 lb accelerated + bonus depreciation tax rule. I highly recommend for your next Jeep or Ford purchase.
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!!
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
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
We have now purchased two vehicles from Fountain city
We have now purchased two vehicles from Fountain city motors. We also referred a friend to them and they bought a vehicle from them. There are not enough good words to say about this company. From the minute you walk in the door, you are greeted and treated with the upmost respect and kindness. The reason that we purchased our second car from them a couple of days ago is because of our first experience with them about a year and a half ago, we were sold a car that was well worth what we paid for it and it's very mechanically sound. We went into the dealership, knowing exactly what we wanted and exactly how much we had to spend. Not once did they try to move us into another financial decision other than the one we had already made. They showed us cars that were in the in our price range of excellent quality and the mileage on them was amazing. I truly believe that these Cars are chosen with care in thinking about people they'll be selling them too. The salesman that we had experienced dealing With were Eric and Travis both we outstanding in listening to our needs. , Even if you don't live in the Harrisonville area, it is well worth the drive to see their inventory and work with these two gentlemen. I truly can't see myself ever buying a car from anybody else, but Fountain city motors.
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.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Fast, Friendly and Easy Buying Experience!
We worked with Mike Ertl at Bergstrom and it was a great experience! Mike was very courteous, knowledgeable and made our entire buying experience very efficient. He answered all of our questions and provided a detailed walk through of our vehicle to ensure we understood all of the features. Our experience was top notch. Thanks Mike and Bergstrom!
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Lauren Hyatt contacted me right away the next morning to
Lauren Hyatt contacted me right away the next morning to arrange a test drive for the bmw 7 series i was interested in. she assured me we could do everything remotely.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Excellent service Professional service Quick
Excellent service Professional service Quick service Polite customer service Excellent customer communication Very detailed repairs
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Chill environment!
These guys were cool to do business with. Not pushing a vehicle on you! They answered all the questions that I asked. I went here to buy a good used truck. I prayed before I stepped foot on their lot and we talked business. First time buying a diesel truck, so they walked me through the steps. I'd go here rather than to a fast talking city slicker. Visit and buy was pleasant! Will tell the fellas to swing by. Thanks dudes!👊🏾
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
We just had our 2017 Ford Escape in for an oil change and
We just had our 2017 Ford Escape in for an oil change and its annual checkup. David Farmer the Service Advisor did an excellent job of putting up with 2 old cranky people who complained a lot about various little things. He is a kind young man that gives a good impression of your service department.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
From the moment we entered the facility, we are greeted
From the moment we entered the facility, we are greeted with friendly courteous staff. that took the time to answer our questions and provided us with an Uber.
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Just want to give a huge thank you to Brian Froelick who
Just want to give a huge thank you to Brian Froelick who helped me and my family get into a beautiful vehicle we are very thankful for Automax and their excellent staff. I highly recommend him for your next vehicle purchase. Thank you so much!!!
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
These guys were absolutely great and very easy to work
These guys were absolutely great and very easy to work with. There wasn’t any pressure and no pushy salesmen. We came over to buy a car from another dealership and things didn’t work out and we didn’t want to leave empty handed. These guys had us in a new car within an hour and a half !
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
2018 Dodge Durango Purchase
I purchased a used 2018 Dodge Durango from Dylan Wagener. The experience was great! Dylan is very personable and friendly as well as the finance person at the dealership.
Vehicle information
Features
Reviews
2017 Navigator L
Great Dealership with Huge inventory to select from. My salesman "Michael" was very professional and great problem solver as had not intended to buy on same day. Very competent young man. Will buy from again!!! Eric B.
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
Reviews
Edgar and pablo were kind and helped out a lot pablo
Edgar and pablo were kind and helped out a lot pablo explaind every thing very clear
Used
2018 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
My review with Gortsema motors and my sales person
I had the best experience I have buying a vehicle at Gortsema my salesperson was fun to visit and deal with Sabrina answered all our questions and we got a great deal. Very easy place to purchase from. We love the pickup we bought. I for one recommend Gortsema motors to anyone looking for a vehicle at a reasonable price
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GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 SLT | 1 Good deal | |
| 2025 GMC Sierra 3500 SLT | $69,480 | 18 Good deals |
| 2024 GMC Sierra 3500 SLT | $62,726 | 26 Good deals |
| 2023 GMC Sierra 3500 SLT | $54,503 | 7 Great deals |
| 2022 GMC Sierra 3500 SLT | $51,358 | 6 Great 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 $42,924, with pricing starting at $35,945.
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
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GMC Sierra 3500 2018 Denali
1 Great Deal out of 35 listings starting at $27,987
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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.
