New and Used GMC Inventory
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2026 GMC Sierra 2500HD AT4
Your Price
$72,620
MSRP
$80,419
Location:
Castle Buick GMC
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vin
1GT4UPE73TF405498
Stock #
B26763
Model Code
#TK20743
Exterior
Onyx Black
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$80,419
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Dealer Discount
$8,212
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$72,620
Your Price
$72,620
MSRP
$80,419
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2026 GMC Sierra 2500HD AT4
Your Price
$81,515
MSRP
$90,369
Location:
Castle Chevrolet GMC McHenry
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vin
1GT4UPEY5TF406158
Stock #
M260652
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$90,369
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Dealer Discount
$9,232
Illinois Doc Fee
$378
Your Price
$81,515
Your Price
$81,515
MSRP
$90,369
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2026 GMC Sierra 2500HD AT4
Your Price
$81,962
MSRP
$90,864
Location:
Castle Chevrolet GMC McHenry
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vin
1GT4UPEY1TF406187
Stock #
M260651
Model Code
#TK20743
Exterior
Sterling Metallic
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$90,864
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Dealer Discount
$9,280
Illinois Doc Fee
$378
Your Price
$81,962
Your Price
$81,962
MSRP
$90,864
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2026 GMC Sierra 2500HD AT4
Your Price
$73,438
MSRP
$81,419
Location:
Castle Chevrolet GMC McHenry
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vin
1GT4UPE73TF407476
Stock #
M260665
Model Code
#TK20743
Exterior
Onyx Black
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$81,419
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Dealer Discount
$8,359
Illinois Doc Fee
$378
Your Price
$73,438
Your Price
$73,438
MSRP
$81,419
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2023 GMC Sierra 1500 Pro
Your Price
$33,714
MSRP
$33,301
Location:
Castle Buick GMC
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vin
1GTRUAEK8PZ128875
Stock #
BC2362
Model Code
#TK10753
Exterior
Summit White
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Gas I4 2.7L/166
Transmission
Automatic
Mileage
22,308 Miles
Selling Price
$33,301
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Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$33,714
Your Price
$33,714
MSRP
$33,301
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2026 GMC Sierra 1500 Elevation
Your Price
$53,546
MSRP
$63,105
Location:
Castle Chevrolet GMC McHenry
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vin
1GTUUCED0TZ526146
Stock #
M260660
Model Code
#TK10543
Exterior
Onyx Black
Interior
Jet Black
Drivetrain
4WD
Engine
Gas V8 5.3L/
Transmission
Automatic
MSRP
$63,105
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Dealer Discount
$7,437
GMC Bonus Cash
$2,500
Illinois Doc Fee
$378
Your Price
$53,546
Your Price
$53,546
MSRP
$63,105
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2026 GMC Sierra 1500 SLT
Your Price
$55,839
MSRP
$64,770
Location:
Castle Chevrolet GMC McHenry
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vin
1GTUUDE81TZ516640
Stock #
M260648
Model Code
#TK10543
Exterior
Summit White
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel I6 3.0L/
Transmission
Automatic
MSRP
$64,770
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Dealer Discount
$7,809
GMC Bonus Cash
$500
GMC Bonus Cash
$1,000
Illinois Doc Fee
$378
Your Price
$55,839
Your Price
$55,839
MSRP
$64,770
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2027 GMC Yukon Denali Ultimate
Your Price
$107,077
MSRP
$109,164
Location:
Castle Buick GMC
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vin
1GKS2EKLXVR135002
Stock #
B27035
Model Code
#TK10706
Exterior
Onyx Black
Interior
Woodland Mahogany
Drivetrain
4WD
Engine
Gas V8 6.2L/
Transmission
Automatic
MSRP
$109,164
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Dealer Discount
$2,500
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$107,077
Your Price
$107,077
MSRP
$109,164
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2026 GMC Sierra 1500 SLT
Your Price
$56,286
MSRP
$65,265
Location:
Castle Chevrolet GMC McHenry
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vin
1GTUUDE81TZ514323
Stock #
M260644
Model Code
#TK10543
Exterior
Sterling Metallic
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel I6 3.0L/
Transmission
Automatic
MSRP
$65,265
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Dealer Discount
$7,857
GMC Bonus Cash
$500
GMC Bonus Cash
$1,000
Illinois Doc Fee
$378
Your Price
$56,286
Your Price
$56,286
MSRP
$65,265
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2018 GMC Sierra 1500 Denali
Your Price
$29,703
MSRP
$29,290
Location:
Castle Cadillac McHenry
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vin
3GTU2PEJ1JG606300
Stock #
M260572A
Model Code
#TK15543
Exterior
White Frost Tricoat
Interior
Cocoa/Dark Sand
Drivetrain
4WD
Engine
Gas V8 6.2L/376
Transmission
Automatic
Mileage
93,938 Miles
Selling Price
$29,290
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Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$29,703
Your Price
$29,703
MSRP
$29,290
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2027 GMC Acadia AWD Denali
Your Price
$64,063
MSRP
$66,294
Location:
Castle Buick GMC
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vin
1GKEMRKS8VJ173283
Stock #
B27036
Model Code
#TLF56
Exterior
Ink
Interior
After Dark
Drivetrain
AWD
Engine
Gas 2.5L/
Transmission
Automatic
MSRP
$66,294
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Dealer Discount
$2,644
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$64,063
Your Price
$64,063
MSRP
$66,294
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2025 GMC Sierra 3500HD Denali
Your Price
$78,390
MSRP
$77,977
Location:
Castle Chrysler Dodge Jeep Ram Naperville
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vin
1GT4UWEY9SF143133
Stock #
J6325A
Model Code
#TK30743
Exterior
Summit White
Interior
Atmosphere/Brownstone
Drivetrain
4WD
Engine
Duramax 6.6L V8 Turbodiesel
Transmission
Automatic
Mileage
27,666 Miles
Selling Price
$77,977
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Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$78,390
Your Price
$78,390
MSRP
$77,977
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