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  • Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4

    $76,645

    MSRP $81,145

    Est. $1,354/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White / White 2026 GMC Sierra 3500 SLESummit White / White 2026 GMC Sierra 3500 SLESummit White / White 2026 GMC Sierra 3500 SLESummit White / White 2026 GMC Sierra 3500 SLESummit White / White 2026 GMC Sierra 3500 SLESummit White / White 2026 GMC Sierra 3500 SLE

    $69,355

    MSRP $77,355

    Est. $1,226/mo

    Jim Trenary Chevrolet Buick GMC

    Check Availability
    Union, MO (26 mi)
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  • Summit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali Ultimate

    $98,753

    MSRP $106,480

    Est. $1,745/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Denali

    $103,443

    Est. $1,828/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Summit White 2026 GMC Sierra 3500 AT4

    $80,818

    Est. $1,428/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $91,443

    Est. $1,616/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $73,250

    MSRP $77,750

    Est. $1,294/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $84,715

    MSRP $89,215

    Est. $1,497/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $89,965

    MSRP $95,465

    Est. $1,590/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $84,015

    MSRP $88,515

    Est. $1,485/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (25 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 Denali

    $85,179

    $3.4K

    MSRP $96,840

    Est. $1,505/mo

    Shottenkirk Fort Madison

    4.7
    Check Availability
    $190 delivery from Fort Madison, IA (127 mi)
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  • Cardinal Red 2026 GMC Sierra 3500 BaseCardinal Red 2026 GMC Sierra 3500 BaseCardinal Red 2026 GMC Sierra 3500 BaseCardinal Red 2026 GMC Sierra 3500 BaseCardinal Red 2026 GMC Sierra 3500 BaseCardinal Red 2026 GMC Sierra 3500 Base

    $62,179

    $996

    MSRP $69,185

    Est. $1,099/mo

    Shottenkirk Fort Madison

    4.7
    Check Availability
    $190 delivery from Fort Madison, IA (127 mi)
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  • Summit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 Pro

    $74,825

    Est. $1,322/mo

    Lou Fusz Buick GMC

    4.4
    Check Availability
    St. Louis, MO (36 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $86,362

    MSRP $94,960

    Est. $1,526/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
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  • Summit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 Pro

    $74,836

    Est. $1,322/mo

    Lou Fusz Buick GMC

    4.4
    Check Availability
    St. Louis, MO (36 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $68,361

    MSRP $75,375

    Est. $1,208/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
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  • Sterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLE

    $58,125

    MSRP $62,775

    Est. $1,027/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $98,978

    MSRP $105,535

    Est. $1,749/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $74,670

    MSRP $81,425

    Est. $1,320/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $82,287

    MSRP $89,580

    Est. $1,454/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $86,943

    MSRP $94,565

    Est. $1,536/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 Denali

    $73,703

    MSRP $80,390

    Est. $1,302/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $84,141

    MSRP $91,565

    Est. $1,487/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLE

    $68,014

    MSRP $73,385

    Est. $1,202/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (42 mi)
    Quick view

About the 2026 GMC Sierra 3500

Basics

Pro shown (base trim).

Seating
2
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)
Side view of the 2026 GMC Sierra 3500
FAQs

How much does the 2026 GMC Sierra 3500 cost?

The 2026 GMC Sierra 3500 price depends on trim level and optional features. Prices typically start at $48,200 and go as high as $97,800 for fully loaded models.

What are some similar vehicles and competitors of the 2026 GMC Sierra 3500?

The 2026 GMC Sierra 3500 compares to and/or competes against the following vehicles:


Is the 2026 GMC Sierra 3500 reliable?

The 2026 GMC Sierra 3500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 3500 owners.

Is the 2026 GMC Sierra 3500 a good truck?

Below are the Cars.com consumer ratings for the 2026 GMC Sierra 3500.

(2 reviews)
Rating breakdown (out of 5):
Comfort
4.0
Interior
4.0
Performance
4.5
Value
3.5
Exterior
5.0
Reliability
4.5
Ratings (2 reviews)

50% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.0
Interior
4.0
Performance
4.5
Value
3.5
Exterior
5.0
Reliability
4.5
Trims

AT4 (2 styles)

Style
4WD Crew Cab 159" AT4 4WD Crew Cab 172" AT4
Inventory price
Starting at $73,400 Starting at $73,600
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)

Denali (2 styles)

Style
4WD Crew Cab 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $76,300 Starting at $76,500
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)

Denali Ultimate (2 styles)

Style
4WD Crew Cab 159" Denali Ultimate 4WD Crew Cab 172" Denali Ultimate
Inventory price
Starting at $97,600 Starting at $97,800
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 (8 styles)

Style
4WD Double Cab 162" Pro 2WD Double Cab 162" Pro 2WD Crew Cab 159" Pro 4WD Crew Cab 159" Pro 2WD Crew Cab 172" Pro 4WD Crew Cab 172" Pro 2WD Reg Cab 142" Pro 4WD Reg Cab 142" Pro
Inventory price
Starting at $53,100 Starting at $50,300 Starting at $51,900 Starting at $54,700 Starting at $52,100 Starting at $54,900 Starting at $48,200 Starting at $51,000
Combined MPG
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)

SLE (4 styles)

Style
4WD Double Cab 162" SLE 4WD Reg Cab 142" SLE 4WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE
Inventory price
Starting at $57,500 Starting at $55,200 Starting at $59,300 Starting at $59,100
Combined MPG
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)

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)
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