New and Used GMC Inventory
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2026 GMC Sierra 2500HD AT4X
Your Price
$82,722
MSRP
$90,129
Location:
Castle Buick GMC
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vin
1GT4UZE73TF405755
Stock #
B26751
Model Code
#TK20743
Exterior
Onyx Black
Interior
Obsidian Rush
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$90,129
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Dealer Discount
$7,820
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$82,722
Your Price
$82,722
MSRP
$90,129
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2026 GMC Sierra 1500 AT4
Your Price
$59,063
MSRP
$58,777
Location:
Castle Subaru of Portage
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vin
3GTUUEE84TG227631
Stock #
S28112A
Model Code
#TK10543
Exterior
Summit White
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Turbocharged Diesel I6 3.0L/
Transmission
Automatic
Mileage
10,215 Miles
Selling Price
$58,777
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Indiana Doc Fee + Electronic Filing Fee
$286.5
Your Price
$59,063
Your Price
$59,063
MSRP
$58,777
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2027 GMC Terrain AWD Elevation
Your Price
$39,195
MSRP
$40,975
Location:
Castle Buick GMC
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vin
3GKALUEG5VL130069
Stock #
B27026
Model Code
#TPB26
Exterior
Summit White
Interior
After Dark
Drivetrain
AWD
Engine
Turbocharged Gas I4 1.5L/-TBD-
Transmission
Automatic
MSRP
$40,975
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Dealer Discount
$1,693
GMC GMF Bonus Cash Program
$500
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$39,195
Your Price
$39,195
MSRP
$40,975
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2026 GMC Sierra 2500HD AT4
Your Price
$72,134
MSRP
$79,924
Location:
Castle Buick GMC
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vin
1GT4UPE70TF405541
Stock #
B26756
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$79,924
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Dealer Discount
$8,203
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$72,134
Your Price
$72,134
MSRP
$79,924
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2026 GMC Sierra 3500HD Denali Ultimate
Your Price
$94,689
MSRP
$102,749
Location:
Castle Buick GMC
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vin
1GT4UYEY1TF407944
Stock #
B26754
Model Code
#TK30943
Exterior
Onyx Black
Interior
Alpine Umber
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$102,749
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Dealer Discount
$8,473
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$94,689
Your Price
$94,689
MSRP
$102,749
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2026 GMC Sierra 2500HD AT4
Your Price
$72,991
MSRP
$80,924
Location:
Castle Chevrolet GMC McHenry
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vin
1GT4UPE75TF404790
Stock #
M260654
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$80,924
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Dealer Discount
$8,311
Illinois Doc Fee
$378
Your Price
$72,991
Your Price
$72,991
MSRP
$80,924
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2027 GMC Terrain FWD Elevation
Your Price
$34,424
MSRP
$35,430
Location:
Castle Buick GMC
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vin
3GKAKMEG4VL197846
Stock #
B27027
Model Code
#TPB26
Exterior
Ebony Twilight Metallic
Interior
After Dark
Drivetrain
FWD
Engine
Turbocharged Gas I4 1.5L/-TBD-
Transmission
Automatic
MSRP
$35,430
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Dealer Discount
$919
GMC GMF Bonus Cash Program
$500
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$34,424
Your Price
$34,424
MSRP
$35,430
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2026 GMC Sierra 2500HD AT4
Your Price
$73,523
MSRP
$81,419
Location:
Castle Buick GMC
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vin
1GT4UPE70TF407810
Stock #
B26755
Model Code
#TK20743
Exterior
Sterling Metallic
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$81,419
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Dealer Discount
$8,309
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$73,523
Your Price
$73,523
MSRP
$81,419
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2026 GMC Sierra 1500 Elevation
Your Price
$51,175
MSRP
$60,990
Location:
Castle Chevrolet GMC McHenry
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vin
1GTUUCED8TZ300288
Stock #
M260655
Model Code
#TK10543
Exterior
Summit White
Interior
Jet Black
Drivetrain
4WD
Engine
Gas V8 5.3L/
Transmission
Automatic
MSRP
$60,990
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Dealer Discount
$7,693
GMC Bonus Cash
$2,500
Illinois Doc Fee
$378
Your Price
$51,175
Your Price
$51,175
MSRP
$60,990
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2026 GMC Sierra 1500 Elevation
Your Price
$48,529
MSRP
$56,725
Location:
Castle Chevrolet GMC McHenry
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vin
3GTPUCEK4TG522502
Stock #
M260635
Model Code
#TK10543
Exterior
Onyx Black
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Gas I4 2.7L/
Transmission
Automatic
MSRP
$56,725
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Dealer Discount
$6,824
GMC Bonus Cash
$1,750
Illinois Doc Fee
$378
Your Price
$48,529
Your Price
$48,529
MSRP
$56,725
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2026 GMC Sierra 2500HD AT4
Your Price
$72,390
MSRP
$71,977
Location:
Castle Chevrolet North
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vin
1GT4UPE73TF131803
Stock #
N25699A
Model Code
#TK20743
Exterior
Coastal Dune
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
Mileage
10,689 Miles
Selling Price
$71,977
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Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$72,390
Your Price
$72,390
MSRP
$71,977
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2026 GMC Sierra 2500HD AT4
Your Price
$72,535
MSRP
$80,419
Location:
Castle Chevrolet GMC McHenry
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1GT4UPE78TF407408
Stock #
M260658
Model Code
#TK20743
Exterior
Sterling Metallic
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$80,419
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Dealer Discount
$8,262
Illinois Doc Fee
$378
Your Price
$72,535
Your Price
$72,535
MSRP
$80,419
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