New Cars For Sale - Dave Sinclair Auto Group

Search our huge selection of your favorite new vehicle brands. Then visit us today and take a test drive.

21 records matched your criteria.

2026 GMC Sierra 3500HD 4WD Crew Cab SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

27 pictures

Exterior : Summit White - White

Interior : Jet Black Leather

Mileage : 6

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T260795
VIN : 1GT4UUE77TF188293

City :

Hwy :

Sale Price : $68,980

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2026 GMC Sierra 3500HD Denali Ultimate

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Glacier White Tricoat - White

Interior : Alpine Umber Leather

Mileage : 5

Transmission : Automatic

Engine : Duramax 6.6L Turbo-Diesel V8 / B20-Diesel compatible

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T260817
VIN : 1GT4UYEY1TF191531

City :

Hwy :

Sale Price : $94,254

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Onyx Black - Black

Interior : Jet Black Leather

Mileage : 5

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261108
VIN : 1GT4UWEY8TF242821

City :

Hwy :

Sale Price : $86,506

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2026 GMC Sierra 3500HD Denali Ultimate

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Onyx Black - Black

Interior : Alpine Umber Leather

Mileage : 5

Transmission : Automatic

Engine : Duramax 6.6L Turbo-Diesel V8 / B20-Diesel compatible

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261300
VIN : 1GT4UYEY8TF279699

City :

Hwy :

Sale Price : $99,069

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Onyx Black - Black

Interior : Jet Black Leather

Mileage : 5

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261398
VIN : 1GT4UWEY7TF292917

City :

Hwy :

Sale Price : $87,089

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2026 GMC Sierra 3500HD SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

33 pictures

Exterior : Sterling Metallic - Gray

Interior : Dark Walnut/Slate Leather

Mileage : 5

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261404
VIN : 1GT4UUEY3TF293924

City :

Hwy :

Sale Price : $80,998

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2026 GMC Sierra 3500HD SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

34 pictures

Exterior : Summit White - White

Interior : Dark Walnut/Slate Leather

Mileage : 7

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261405
VIN : 1GT4UUEY6TF294131

City :

Hwy :

Sale Price : $80,539

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Summit White - White

Interior : Jet Black Leather

Mileage : 5

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261415
VIN : 1GT4UWEY4TF296701

City :

Hwy :

Sale Price : $83,842

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Onyx Black - Black

Interior : Jet Black Leather

Mileage : 6

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261421
VIN : 1GT4UWEYXTF296685

City :

Hwy :

Sale Price : $84,302

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

26 pictures

Exterior : Onyx Black - Black

Interior : Jet Black Leather

Mileage : 6

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261474
VIN : 1GT4UWEY7TF296675

City :

Hwy :

Sale Price : $84,760

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

25 pictures

Exterior : Onyx Black - Black

Interior : Jet Black Leather

Mileage : 6

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261496
VIN : 1GT4UWEY7TF313927

City :

Hwy :

Sale Price : $82,906

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2026 GMC Sierra 3500HD Pro

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

24 pictures

Exterior : Summit White - White

Interior : Jet Black Cloth

Mileage : 2

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261505
VIN : 1GT5USE73TF315534

City :

Hwy :

Sale Price : $53,732

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2026 GMC Sierra 3500HD SLE

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Summit White - (White)

Interior : Black

Mileage : 1

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261508
VIN : 1GT4UTEY6TF316199

City :

Hwy :

Sale Price : $68,014

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2026 GMC Sierra 3500HD SLE

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Sterling Metallic - (Gray)

Interior : Black

Mileage : 1

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261512
VIN : 1GT5UTE79TF317245

City :

Hwy :

Sale Price : $58,125

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Glacier White Tricoat - (White)

Interior : Black

Mileage : 1

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261543
VIN : 1GT4UWE75TF320141

City :

Hwy :

Sale Price : $73,703

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Onyx Black - (Black)

Interior : Black

Mileage : 5

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261556
VIN : 1GT4UWE77TF323283

City :

Hwy :

Sale Price : $74,670

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Summit White - (White)

Interior : Atmosphere/Brownstone

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261620
VIN : 1GT4UWEY9TF336142

City :

Hwy :

Sale Price : $86,849

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2026 GMC Sierra 3500HD Denali

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Onyx Black - (Black)

Interior : Jet Black

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261619
VIN : 1GT4UWEY6TF336101

City :

Hwy :

Sale Price : $87,312

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2026 GMC Sierra 3500HD SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Sterling Metallic - (Gray)

Interior : Jet Black

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261639
VIN : 1GT4UUE7XTF339756

City :

Hwy :

Sale Price : $66,061

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2026 GMC Sierra 3500HD SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Sterling Metallic - (Gray)

Interior : Jet Black

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261641
VIN : 1GT4UUEY6TF340900

City :

Hwy :

Sale Price : $73,881

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2026 GMC Sierra 3500HD SLT

Dave Sinclair Buick GMC NEW Cars
(314) 310-7283

- NEW -

Exterior : Summit White - (White)

Interior : Jet Black

Transmission : Automatic

Engine : 6.6L

Drive Type : Four Wheel Drive

Horsepower : 470 @ 2800 rpm

Cylinders : 8

Fuel : Diesel Fuel

MPG : City / HWY

Stock : T261640
VIN : 1GT4UUEY6TF340167

City :

Hwy :

Sale Price : $73,419

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