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.

20 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 :

Price : $68,361Admin Fee : $619Sale Price : $68,980

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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 :

Price : $84,024Admin Fee : $619Sale Price : $84,643

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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 :

Price : $77,008Admin Fee : $619Sale Price : $77,627

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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 :

Price : $76,554Admin Fee : $619Sale Price : $77,173

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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 :

Price : $81,267Admin Fee : $619Sale Price : $81,886

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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 :

Price : $81,725Admin Fee : $619Sale Price : $82,344

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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 :

Price : $79,891Admin Fee : $619Sale Price : $80,510

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2026 GMC Sierra 3500HD SLE

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

- NEW -

25 pictures

Exterior : Summit White - White

Interior : Jet Black Cloth

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 : T261508
VIN : 1GT4UTEY6TF316199

City :

Hwy :

Price : $65,514Admin Fee : $619Sale Price : $66,133

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2026 GMC Sierra 3500HD SLE

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

- NEW -

25 pictures

Exterior : Sterling Metallic - Gray

Interior : Jet Black Cloth

Mileage : 8

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 :

Price : $58,125Admin Fee : $619Sale Price : $58,744

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2026 GMC Sierra 3500HD Denali

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

- NEW -

25 pictures

Exterior : Glacier White Tricoat - White

Interior : Jet Black Leather

Mileage : 8

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 :

Price : $73,301Admin Fee : $619Sale Price : $73,920

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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 V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261556
VIN : 1GT4UWE77TF323283

City :

Hwy :

Price : $73,856Admin Fee : $619Sale Price : $74,475

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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 : Atmosphere/Brownstone 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 : T261620
VIN : 1GT4UWEY9TF336142

City :

Hwy :

Price : $84,877Admin Fee : $619Sale Price : $85,496

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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 : T261619
VIN : 1GT4UWEY6TF336101

City :

Hwy :

Price : $85,812Admin Fee : $619Sale Price : $86,431

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2026 GMC Sierra 3500HD SLT

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

- NEW -

25 pictures

Exterior : Sterling Metallic - Gray

Interior : Jet Black Leather

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 : T261639
VIN : 1GT4UUE7XTF339756

City :

Hwy :

Price : $66,061Admin Fee : $619Sale Price : $66,680

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2026 GMC Sierra 3500HD SLT

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

- NEW -

25 pictures

Exterior : Sterling Metallic - Gray

Interior : Jet Black Leather

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 : T261641
VIN : 1GT4UUEY6TF340900

City :

Hwy :

Price : $71,381Admin Fee : $619Sale Price : $72,000

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2026 GMC Sierra 3500HD SLT

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

- NEW -

25 pictures

Exterior : Summit White - White

Interior : Jet Black Leather

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 : T261640
VIN : 1GT4UUEY6TF340167

City :

Hwy :

Price : $70,919Admin Fee : $619Sale Price : $71,538

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2026 GMC Sierra 3500HD SLT

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

- NEW -

25 pictures

Exterior : Summit White - White

Interior : Jet Black Leather

Mileage : 3

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261664
VIN : 1GT4UUE74TF339638

City :

Hwy :

Price : $65,600Admin Fee : $619Sale Price : $66,219

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2026 GMC Sierra 3500HD SLT

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

- NEW -

25 pictures

Exterior : Sterling Metallic - Gray

Interior : Jet Black Leather

Mileage : 26

Transmission : Automatic

Engine : 6.6L V8

Drive Type : Four Wheel Drive

Horsepower : 401 @ 5200 rpm

Cylinders : 8

Fuel : Gasoline

MPG : City / HWY

Stock : T261741
VIN : 1GT4UUE72TF339735

City :

Hwy :

Price : $66,061Admin Fee : $619Sale Price : $66,680

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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 : T261822
VIN : 1GT5UTE76TF372073

City :

Hwy :

Price : $58,857Admin Fee : $619Sale Price : $59,476

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2026 GMC Sierra 3500HD Pro

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

- NEW -

Exterior : Summit White - (White)

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 : T261856
VIN : 1GT5USE78TF367788

City :

Hwy :

Price : $55,313Admin Fee : $619Sale Price : $55,932

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