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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 2500 trucks
for sale
near
Castle Pines, CO
- 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 2500 AT4
Vehicle information
Features
Reviews
Done on time.
Done on time. Warranty recall on the engine. Checked out, now with new 40/wt oil. Nice service bay, responsive staff. Showroom full of new cars.
New
2026 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Austin Ellenberg helped us find the exact Buick Enclave
Austin Ellenberg helped us find the exact Buick Enclave that we wanted. He was very nice to work with and patiently helped us understand all the new features on the 2025 car. His explanations of everything were excellent, and we appreciate his offer to talk with us again about any new questions that we come up with. We also appreciate that he had a new battery installed before we took possession of the car, since the previous extreme cold temperatures had run down the battery while the car was on the lot.
Vehicle information
Features
Reviews
Couldn't be happier!
Kyle helped us and was fantastic! He worked was low pressure, willing to work with us and very professional! We highly recommend!!!
New
2026 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Yamile was knowledgeable, professional, empathetic and a
Yamile was knowledgeable, professional, empathetic and a terrific asset for you. She is a keeper!!! I could not be more pleased with the service she provided.
New
2026 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Fantastic service
The service was top-notch. I had a broken mirror and worked with Greg Mudd, who found me a great deal on a mirror, painted it, and installed it, saving me about $350. He was incredibly kind and responsive. It was a great repair experience when I had been anticipating a stressful one.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Our experience with Jason Montgomery was absolutely
Our experience with Jason Montgomery was absolutely fantastic! From the very beginning of our car search, Jason went above and beyond to help us find the perfect vehicle. He was incredibly patient, knowledgeable, and genuinely cared about making sure we found exactly what we wanted. When it came time to go over our new truck, Jason took the time to explain every feature in detail ? making sure we understood how everything worked and felt completely comfortable before we drove off the lot. His professionalism, friendliness, and thoroughness truly made the whole process easy and enjoyable. We couldn?t be happier with our new truck or the amazing service we received from Jason. If you?re looking for someone who truly goes the extra mile, Jason Montgomery is the person to see!
Vehicle information
Features
Reviews
Outstanding purchase experience .
Outstanding purchase experience .. customer service was great . Car was prepped and ready as promised fir next day pickup . Dealership and all employees were awesome. Finance process was smooth and very quick ! Well done everyone
Vehicle information
Features
Reviews
Five Star Service!
I drove right in, the Service Associate that greeted me was very polite and explained exactly what was going to be done, as I waited for my vehicle he came to check on me and asked if I had any other questions or concerns, it was a great experience and I will certainly be returning to Transwest GMC for all my service needs
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Great service department!
Great service department! Greg was great to work with. Very knowledgeable and great communication. Thanks
New
2026 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
friendly, no pressure experience
Great car buying experience. Friendly, knowledgeable, no pressure salesman Kyle Berry. One minor problem was handled quickly and professionally with no hassle. Go see Kyle.
Vehicle information
Features
Reviews
Rafeal was my contact there and he was great.
Rafeal was my contact there and he was great. He went above and beyond to communicate share photos and video and was very transparent. As a matter of fact the whole process and everyone was easy to work with. Not the dealer where sale and sale manager go back and forth to do some crazy negotiating. Open transparent and fair dealing. Rafeal was an advocate throughout and in and out with anew car well less than an hr after trade in paperwork
New
2026 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
We saw the car online a couple days before we could get
We saw the car online a couple days before we could get over for a test drive. We scheduled the drive and the car was ready when we got there. We moved forward with the purchase and were pretty quickly out the door. The car was extremely clean for a 7 year old car, and all the vehicles on the lot looked clean. Friendly sales and finance staff.
New
2026 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
Rafael H was very attentive to what we were looking for
Rafael H was very attentive to what we were looking for in a clean used diesel p up . His assistance in our purchase with our purchase was very good . professional, not pushy Gerald & Kay Schreiber
Vehicle information
Features
New
2026 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Vehicle information
Features
Vehicle information
Features
Vehicle information
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GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2025 GMC Sierra 2500 | $77,062 | 5 Good deals |
About the 2026 GMC Sierra 2500
Pro shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-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 2500 cost?
The 2026 GMC Sierra 2500 price depends on trim level and optional features. Prices typically start at $46,700 and go as high as $94,100 for fully loaded models.
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" AT4 | 4WD Crew Cab 159" AT4 |
| Inventory price | |
| Starting at $71,800 | Starting at $71,600 |
| 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) |
AT4X (1 style)
| Style |
|---|
| 4WD Crew Cab 159" AT4X |
| Inventory price |
| Starting at $83,700 |
| Combined MPG |
| 0 |
| Engine |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
Denali (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" Denali | 4WD Crew Cab 172" Denali |
| Inventory price | |
| Starting at $75,000 | Starting at $75,200 |
| 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) |
Denali Ultimate (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" Denali Ultimate | 4WD Crew Cab 172" Denali Ultimate |
| Inventory price | |
| Starting at $93,800 | Starting at $94,100 |
| 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) |
Pro (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4WD Crew Cab 159" Pro | 4WD Crew Cab 172" Pro | 2WD Crew Cab 172" Pro | 2WD Crew Cab 159" Pro | 2WD Double Cab 162" Pro | 4WD Double Cab 162" Pro | 2WD Double Cab 149" Pro | 4WD Double Cab 149" Pro | 2WD Reg Cab 142" Pro | 4WD Reg Cab 142" Pro |
| Inventory price | |||||||||
| Starting at $53,200 | Starting at $53,400 | Starting at $50,600 | Starting at $50,400 | Starting at $48,800 | Starting at $51,600 | Starting at $48,600 | Starting at $51,400 | Starting at $46,700 | Starting at $49,500 |
| Combined MPG | |||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
SLE (5 styles)
| Style | ||||
|---|---|---|---|---|
| 4WD Crew Cab 159" SLE | 4WD Crew Cab 172" SLE | 4WD Double Cab 149" SLE | 4WD Double Cab 162" SLE | 4WD Reg Cab 142" SLE |
| Inventory price | ||||
| Starting at $57,400 | Starting at $57,600 | Starting at $55,600 | Starting at $55,800 | Starting at $53,500 |
| Combined MPG | ||||
| 0 | 0 | 0 | 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) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
SLT (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" SLT | 4WD Crew Cab 159" SLT |
| Inventory price | |
| Starting at $65,000 | Starting at $64,700 |
| 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.
Research the 2026 GMC Sierra 2500
2026 GMC Sierra 2500 Trucks by city
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GMC Sierra 2500 trims
-
GMC Sierra 2500 2026 AT4
26 listings starting at $80,385
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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.
