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*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.
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New and used
2026 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.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
My visit met expectations.
My visit met expectations. They provided additional service options they feel are necessary, however dealer suggestions for service at mileage intervals do not always align with GM recommendations, so I try to review GM recommendations first. Good example is oil change. Dealer recommends at 5k, but service manual says 7,500 or based on oil life monitoring system.
Vehicle information
Features
Reviews
Satisfied with arrival check in, waiting time, billing
Satisfied with arrival check in, waiting time, billing transaction help with points to pay from my GM card, Special Thanks to the mechanic who did the work and the hold Service Department Thanks. H. Williams
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Buying was stressful and vehicle was poorly detailed and
Buying was stressful and vehicle was poorly detailed and prepared. Was very hard to get extra set of keys.
Vehicle information
Features
Reviews
Josh Roseke, my sales rep was fantastic!
Josh Roseke, my sales rep was fantastic! He found me the exact SUV package I wanted and I love it!!! Michael in finance was great too!!
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
We did almost everything over the phone and it was so
We did almost everything over the phone and it was so easy. Bennie was an awesome salesman He listened to what we wanted and made the experience very enjoyable.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
I just drove my 2023 Buick home and I am pleased with the
I just drove my 2023 Buick home and I am pleased with the car, the dealership and the experience. Our saleswoman, Rachel was knowledgeable and a pleasure to do business with.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Thank you to Eddie, Steve and Josh.
Thank you to Eddie, Steve and Josh. You guys are awesome . Love my newest ride!
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
They went above and beyond to get me the vehicle I wanted
They went above and beyond to get me the vehicle I wanted I will do business with them again thank you Chase!!
Vehicle information
Features
Reviews
We've had a great experience with Key Auto Mall GMC
We've had a great experience with Key Auto Mall GMC purchasing our new 2025 Acadia. Brian MacGee was wonderful to work with along with General Manager Theron Maring and all the other great staff. Brian especially has spent a lot of time going over all we need to know about how this car works and has several times answered more questions since we purchased the car a week ago. He helped us purchase new cargo mats and get the protective coatings on the car, inside and out. Brian has been professional, friendly, and so helpful to us. We highly recommend Brian and the Key Auto Mall GMC team and will definitely consider them for our next auto purchase.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Jody in finance was great.
Jody in finance was great. The salesman Brian was very knowledgeable. The manager Greg Mier was friendly and accommodating. I am very happy with the GMC Acadia Elevation. Just be prepared to hang out on YouTube learning about all the bells & whistles.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Went to just look at new cars, Wrong idea!
Went to just look at new cars, Wrong idea! We met Dexter and he was the best car salesman I’ve ever dealt with. He wasn’t pushy, He let us look, and then he gave us a few cars to look at at what he thought we would like. Found a car in a matter of an hour. Went back the next day and boom it was ours. They had the fastest and the best system at purchasing a car, simple and easy no more back-and-fort smooth and easy and I would recommend Them hands down.
Vehicle information
Features
Reviews
Everything was taken care of on my automobile.
Everything was taken care of on my automobile. In addition to servicing my vehicle, there was a recall on my auto and they took care of that also.
Vehicle information
Features
Reviews
I had a flat tire and Sierra Lopez made sure it was
I had a flat tire and Sierra Lopez made sure it was repaired quickly. Sierra is always friendly and professional. I know when I go to their service dept or sales dept, I will be taken care of.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Good-friendly staff.
Good-friendly staff.i do not have anything further to say so do not need twenty five words. I had no problems during my visit to change oil
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Have bought a 2018 Silverado and a 2025 trax 1RS.
Have bought a 2018 Silverado and a 2025 trax 1RS. Just had service to the Silverado and it was completed in a timely manner. The cost was a little high but what isn?t costing more now days.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
My business truck, in very cold weather, had a momentary
My business truck, in very cold weather, had a momentary maintenance code. While she was in for the code, I requested a service be done on the drive train, ie. tranx, diffs, and txfr case. Service representative Sonya got me in and out, back on my schedule, out of town, right on time. Her performance was exceptional, as was all of the aspects of my service with Laura GMC in Sullivan Mo!!!!
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Beth was great!
Beth was great! Would definitely work with her again. Took the time to search other lots for the vehicle I was looking for.
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Great customer service!
Great customer service! Luis and Robert Salinas were AWESOME throughout the whole buying process . I would definite recommend this dealer to anyone looking to buy a great vehicle along with excellent customer service .
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Everyone is knowledgeable and helpful.
Everyone is knowledgeable and helpful. Great team. Would recommend to others I will return for service as well and future purchases. Thank you and see you soon
New
2026 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
They always get me in quickly provide the needed services
They always get me in quickly provide the needed services while I wait and get me back on the road. I have bought several vehicles from this dealership and have always been very happy with my purchase.
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2025 GMC Sierra 3500 SLT | $69,753 | 17 Good deals |
| 2024 GMC Sierra 3500 SLT | $62,745 | 24 Good deals |
| 2023 GMC Sierra 3500 SLT | $55,044 | 12 Great deals |
| 2022 GMC Sierra 3500 SLT | $51,489 | 5 Great deals |
About the 2026 GMC Sierra 3500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 0
- Transmission
- 10-Speed A/T
- Engine
- 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 3500 SLT cost?
The 2026 GMC Sierra 3500 SLT price depends on optional features. Prices typically start at $66,400.
What are some similar vehicles and competitors of the 2026 GMC Sierra 3500 SLT?
The 2026 GMC Sierra 3500 SLT compares to and/or competes against the following vehicles:
SLT (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" SLT | 4WD Crew Cab 159" SLT |
| Inventory price | |
| Starting at $66,600 | Starting at $66,400 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
*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 2026 Denali
1044 listings starting at $70,075
-
GMC Sierra 3500 2026 Pro
474 listings starting at $45,343
-
GMC Sierra 3500 2026 AT4
2 Great Deals out of 296 listings starting at $71,645
-
GMC Sierra 3500 2026 SLE
227 listings starting at $54,900
-
GMC Sierra 3500 2026 Denali Ultimate
219 listings starting at $88,840
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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.
