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
  • Titanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLT

    $76,373

    $399
    Est. $1,353/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)

    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLT

    $68,412

    MSRP $76,510

    Est. $1,212/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    Naperville, IL (20 mi)

    Quick view
  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $76,967

    $1K

    MSRP $84,615

    Est. $1,364/mo

    Advantage Buick GMC

    4.9
    Check Availability
    Hodgkins, IL (4 mi)
    Quick view
  • Sterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLT

    $80,620

    Est. $1,428/mo

    Arnie Bauer Buick GMC of Matteson

    4.4
    Check Availability
    Matteson, IL (17 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLT

    $78,624

    $399
    Est. $1,393/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $68,529

    MSRP $75,265

    Est. $1,214/mo

    Advantage Buick GMC

    4.9
    Check Availability
    Hodgkins, IL (4 mi)
    Quick view
  • Volcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLT

    $74,650

    MSRP $75,400

    Est. $1,322/mo

    Schepel Buick-GMC

    4.9
    Check Availability
    Merrillville, IN (30 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLT

    $68,662

    $7.2K

    MSRP $76,510

    Est. $1,216/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    Naperville, IL (20 mi)

    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $68,559

    MSRP $74,525

    Est. $1,215/mo

    Schepel Buick-GMC

    4.9
    Check Availability
    Merrillville, IN (30 mi)
    Quick view
  • Titanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLTTitanium Rush Metallic 2026 GMC Sierra 2500 SLT

    $67,809

    MSRP $77,780

    Est. $1,201/mo

    Zeigler Buick GMC of Lincolnwood

    4.3
    Check Availability
    Lincolnwood, IL (19 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLT

    $76,312

    MSRP $85,755

    Est. $1,352/mo

    Bill Kay Buick GMC

    4.4
    Check Availability
    Downers Grove, IL (13 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLT

    $77,378

    $399
    Est. $1,371/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $80,232

    MSRP $87,820

    Est. $1,421/mo

    Napleton's Schaumburg Buick GMC

    4.1
    Check Availability
    Schaumburg, IL (26 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLT

    $77,378

    Est. $1,371/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)

    Quick view
  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $78,488

    $399
    Est. $1,390/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)
    Quick view
  • Volcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLT

    $83,815

    Est. $1,485/mo

    Arnie Bauer Buick GMC of Matteson

    4.4
    Check Availability
    Matteson, IL (17 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLT

    $77,592

    $1K

    MSRP $85,310

    Est. $1,375/mo

    Advantage Buick GMC

    4.9
    Check Availability
    Hodgkins, IL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $69,745

    MSRP $76,869

    Est. $1,236/mo

    Castle Buick GMC

    3.7
    Check Availability
    North Riverside, IL (8 mi)
    Quick view
  • Glacier White 2026 GMC Sierra 2500 SLT

    $68,977

    MSRP $76,345

    Est. $1,222/mo

    Circle Buick GMC

    4.1
    Check Availability
    Highland, IN (23 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLT

    $77,378

    Est. $1,371/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (23 mi)

    Quick view
  • Glacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLT

    $84,376

    Est. $1,495/mo

    Laura Buick GMC

    4.5
    Check Availability
    $481 delivery from Collinsville, IL (241 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLT

    $67,662

    $250

    MSRP $76,265

    Est. $1,199/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    $299 delivery from Gurnee, IL (45 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLT

    $75,027

    $1.2K
    4,490 mi.
    Est. $1,329/mo

    Currie Motors Buick GMC

    4.9
    Check Availability
    Valparaiso, IN (43 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 2500 SLT

    $83,214

    $2.5K

    MSRP $86,559

    Est. $1,474/mo

    Currie Motors Buick GMC

    4.9
    Check Availability
    Valparaiso, IN (43 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $67,662

    $250

    MSRP $75,770

    Est. $1,199/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    Gurnee, IL (45 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $74,119

    $1K

    MSRP $82,060

    Est. $1,313/mo

    Castle Chevrolet GMC

    4.4
    Check Availability
    McHenry, IL (47 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLTSterling Metallic 2026 GMC Sierra 2500 SLT

    $68,662

    $250

    MSRP $76,710

    Est. $1,216/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    Gurnee, IL (45 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLT

    $82,362

    $2.5K

    MSRP $85,680

    Est. $1,459/mo

    Currie Motors Buick GMC

    4.9
    Check Availability
    Valparaiso, IN (43 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $78,135

    MSRP $86,509

    Est. $1,384/mo

    Castle Chevrolet GMC

    4.4
    Check Availability
    McHenry, IL (47 mi)
    Quick view

About the 2026 GMC Sierra 2500 SLT

Basics

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)
Side view of the 2026 GMC Sierra 2500 SLT
FAQs

How much does the 2026 GMC Sierra 2500 SLT cost?

The 2026 GMC Sierra 2500 SLT price depends on optional features. Prices typically start at $65,200.

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

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


Trims

SLT (2 styles)

Style
4WD Crew Cab 159" SLT 4WD Crew Cab 172" SLT
Inventory price
Starting at $65,200 Starting at $65,500
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)
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

2026 GMC Sierra 2500 SLT by city

GMC Sierra 2500 trims