Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • White 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLE

    $63,765

    $1.7K

    MSRP $64,885

    Est. $1,163/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)

    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLE

    $60,425

    $1K
    Est. $1,102/mo

    O'Meara GMC

    3.0
    Check Availability
    Thornton, CO (17 mi)
    Quick view
  • Gray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLE

    $75,132

    $1.5K

    MSRP $77,075

    Est. $1,371/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $74,720

    Est. $1,363/mo

    Transwest GMC Denver

    4.8
    Check Availability
    Henderson, CO (17 mi)
    Quick view
  • Gray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLE

    $70,598

    $5.5K

    MSRP $77,075

    Est. $1,288/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $73,273

    MSRP $79,190

    Est. $1,337/mo

    Johnson Auto Plaza

    3.4
    Check Availability
    Brighton, CO (13 mi)
    Quick view
  • White 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLE

    $74,670

    $1K

    MSRP $76,580

    Est. $1,362/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)
    Quick view
  • White 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLEWhite 2026 GMC Sierra 2500 SLE

    $72,638

    $2.3K

    MSRP $74,400

    Est. $1,325/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)
    Quick view
  • Coastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLE

    $75,215

    Est. $1,372/mo

    Transwest GMC Denver

    4.8
    Check Availability
    Henderson, CO (17 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $73,273

    MSRP $79,190

    Est. $1,337/mo

    Johnson Auto Plaza

    3.4
    Check Availability
    Brighton, CO (13 mi)
    Quick view
  • Sterling 2026 GMC Sierra 2500 SLESterling 2026 GMC Sierra 2500 SLESterling 2026 GMC Sierra 2500 SLESterling 2026 GMC Sierra 2500 SLESterling 2026 GMC Sierra 2500 SLESterling 2026 GMC Sierra 2500 SLE

    $73,724

    MSRP $79,685

    Est. $1,345/mo

    Johnson Auto Plaza

    3.4
    Check Availability
    Brighton, CO (13 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $65,130

    $1K
    Est. $1,188/mo

    O'Meara GMC

    3.0
    Check Availability
    Thornton, CO (17 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $63,330

    $1K
    Est. $1,155/mo

    O'Meara GMC

    3.0
    Check Availability
    Thornton, CO (17 mi)
    Quick view
  • Gray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLEGray 2026 GMC Sierra 2500 SLE

    $64,226

    $1.7K

    MSRP $65,380

    Est. $1,172/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (22 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLESterling Metallic 2026 GMC Sierra 2500 SLE

    $75,215

    Est. $1,372/mo

    Transwest GMC Denver

    4.8
    Check Availability
    Henderson, CO (17 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLE

    $74,980

    $1K

    MSRP $75,980

    Est. $1,368/mo

    Loveland Buick GMC

    Check Availability
    Loveland, CO (23 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $59,318

    Est. $1,082/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,604 delivery from Collinsville, IL (802 mi)
    Quick view
  • Titanium Rush Metallic 2026 GMC Sierra 2500 SLETitanium Rush Metallic 2026 GMC Sierra 2500 SLETitanium Rush Metallic 2026 GMC Sierra 2500 SLETitanium Rush Metallic 2026 GMC Sierra 2500 SLETitanium Rush Metallic 2026 GMC Sierra 2500 SLETitanium Rush Metallic 2026 GMC Sierra 2500 SLE

    $56,995

    Est. $1,040/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,604 delivery from Collinsville, IL (802 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLE

    $77,813

    $401

    MSRP $77,615

    Est. $1,420/mo

    Markley Buick GMC

    5.0
    Check Availability
    Fort Collins, CO (31 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $69,796

    $1K

    MSRP $73,960

    Est. $1,273/mo

    AutoNation Buick GMC Park Meadows

    4.5
    Check Availability
    Lone Tree, CO (38 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $68,269

    $1K
    Est. $1,245/mo

    AutoNation Buick GMC West

    4.0
    Check Availability
    Golden, CO (30 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLE

    $76,461

    MSRP $81,335

    Est. $1,395/mo

    Markley Buick GMC

    5.0
    Check Availability
    Fort Collins, CO (31 mi)
    Quick view
  • Coastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLECoastal Dune 2026 GMC Sierra 2500 SLE

    $76,461

    MSRP $81,335

    Est. $1,395/mo

    Markley Buick GMC

    5.0
    Check Availability
    Fort Collins, CO (31 mi)
    Quick view

About the 2026 GMC Sierra 2500 SLE

Basics

SLE shown.

Seating
3
Door count
2
Drivetrain
Four Wheel Drive
Combined MPG
0
Transmission
10-Speed A/T
Engine
470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
Side view of the 2026 GMC Sierra 2500 SLE
FAQs

How much does the 2026 GMC Sierra 2500 SLE cost?

The 2026 GMC Sierra 2500 SLE price depends on optional features. Prices typically start at $54,000.

What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 SLE?

The 2026 GMC Sierra 2500 SLE compares to and/or competes against the following vehicles:


Trims

SLE (5 styles)

Style
4WD Double Cab 162" SLE 4WD Double Cab 149" SLE 4WD Reg Cab 142" SLE 4WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE
Inventory price
Starting at $56,300 Starting at $56,100 Starting at $54,000 Starting at $58,100 Starting at $57,900
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)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

GMC Sierra 2500 trims