Castle Rock Auto Broker
303-731-6588 Get a quote
A new truck similar to the 2026 & 2027 GMC Sierra 1500

GMC · Truck · Gas / Diesel

2026 & 2027 GMC Sierra 1500 For Sale Near Denver

The half-ton pickup with Denali and AT4 trims. Tell us the trim and color and we'll get written out-the-door prices from competing dealers.

Prefer to talk? 303-731-6588

Price a Sierra 1500 in 3 steps

Step 1 of 3: Vehicle
Step 2 of 3: Details
Step 3 of 3: Contact

We use this only to send your quote. No spam, and we never sell your information.

The Sierra 1500 at a glance

Model years
2026 & 2027
Body style
Truck
Seats up to
6
Powertrain
Gas, Diesel
AWD / 4x4
Available
Best EPA rating
25 mpg combined

AWD or 4x4 is optional on the Sierra 1500. Tell us if you want it and we'll only quote units that have it.

Gas and diesel engines are offered, and we can quote both.

Every trim and factory color GMC offers on the Sierra 1500 is on the table. Put what you want in the form. If no dealer has it in stock, we look for an incoming unit or check whether ordering one is an option.

Every EPA-rated GMC Sierra 1500 version

14 versions tested for 2026. 4 engine or motor options; 8-speed automatic and 10-speed automatic transmissions.

YearVersionEngine / motorTransmissionDriveCity / Hwy / Comb
2026Sierra 2WD2.7L 4-cyl turbo8-speed automaticRWD18 / 21 / 20 MPG
2026Sierra 2WD5.3L 8-cyl10-speed automaticRWD16 / 20 / 17 MPG
2026Sierra 2WD3.0L 6-cyl turbo diesel10-speed automaticRWD23 / 28 / 25 MPG
2026Sierra 2WD with Sport Mode2.7L 4-cyl turbo8-speed automaticRWD17 / 21 / 19 MPG
2026Sierra 2WD with Sport Mode5.3L 8-cyl10-speed automaticRWD16 / 21 / 18 MPG
2026Sierra 4WD2.7L 4-cyl turbo8-speed automatic4WD17 / 20 / 18 MPG
2026Sierra 4WD6.2L 8-cyl10-speed automatic4WD15 / 19 / 16 MPG
2026Sierra 4WD5.3L 8-cyl10-speed automatic4WD15 / 18 / 16 MPG
2026Sierra 4WD AT4X6.2L 8-cyl10-speed automatic4WD14 / 16 / 15 MPG
2026Sierra 4WD AT4X with Sport Mode3.0L 6-cyl turbo diesel10-speed automatic4WD19 / 20 / 19 MPG
2026Sierra 4WD FFV5.3L 8-cyl10-speed automatic4WD15 / 19 / 17 MPG
2026Sierra 4WD with Sport Mode2.7L 4-cyl turbo8-speed automatic4WD17 / 18 / 17 MPG
2026Sierra 4WD with Sport Mode3.0L 6-cyl turbo diesel10-speed automatic4WD22 / 26 / 24 MPG
2026Sierra Mud Terrain Tires with Sport Mode3.0L 6-cyl turbo diesel10-speed automatic4WD21 / 24 / 23 MPG

Source: U.S. EPA and DOE, fueleconomy.gov. Your mileage will vary. Horsepower, torque, weight and dimensions differ by trim; ask us for the spec sheet on the exact build you want.

How we'd buy this Sierra 1500

  1. You send the spec. Trim, color, packages, buy or lease, and whether there's a trade.
  2. We find real units. We confirm GMC Sierra 1500 inventory at dealers by VIN, not by listing photos.
  3. Dealers compete. Each one gives us an out-the-door number in writing, with add-ons listed.
  4. You pick one and sign. We check the paperwork against the quote first.

2026 & 2027 GMC Sierra 1500 questions

Can you find a 2026 & 2027 GMC Sierra 1500 for sale near Denver?

Yes. We search dealers across the Denver metro and the rest of Colorado for the trim and color you want, confirm the unit by VIN, and send you written out-the-door prices to compare.

Is the GMC Sierra 1500 available with all-wheel drive?

Yes, as an option. Tell us in the quote form and we'll only price AWD or 4x4 units.

Does the Sierra 1500 come as a hybrid or electric?

No. The Sierra 1500 is sold with gas or diesel power only.

What fuel economy does the GMC Sierra 1500 get?

EPA rates the GMC Sierra 1500 at 15 to 25 mpg combined, depending on engine and drivetrain. Figures come from fueleconomy.gov.

Can you get a 2027 GMC Sierra 1500?

We can ask. EPA hasn't published 2027 ratings for the Sierra 1500 yet, so 2027 details may still be pending. We'll check with GMC dealers on 2027 timing and order availability, and quote 2026 inventory alongside it.

Can I lease a 2026 & 2027 GMC Sierra 1500 through a broker?

Yes. Tell us the term and yearly miles you want and we'll ask dealers for the money factor, residual and total due at signing, so you can compare leases on the same numbers.

Do I have to live in Castle Rock?

No. We're based in Castle Rock and work with buyers across Douglas County and the Denver metro, including Parker, Highlands Ranch, Lone Tree and Castle Pines.

Let's find your Sierra 1500.

610 Jerry Street Suite 200, Castle Rock, CO 80104