New Vehicles for Sale in Chicago, Naperville, Schaumburg, & Northwest Indiana

2025 GMC Sierra 2500HD Denali

2025 GMC Sierra 2500HD Denali

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UREY5SF340074
Stock #
M250536
Model Code
#TK20743
Exterior
Onyx Black
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$91,955
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Dealer Discount $15,132
GMC Bonus Cash $4,500
Illinois Doc Fee
$378
Your Price
$72,701
Your Price
$72,701
Disclosure
MSRP
$91,955
2026 GMC Sierra 2500HD Denali Ultimate

2026 GMC Sierra 2500HD Denali Ultimate

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UXEY2TF280244
Stock #
M260429
Model Code
#TK20743
Exterior
Sterling Metallic
Interior
Alpine Umber
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$98,609
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Dealer Discount $8,603
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$88,384
Your Price
$88,384
Disclosure
MSRP
$98,609
2026 GMC Sierra 2500HD SLE

2026 GMC Sierra 2500HD SLE

Disclosure
Location:
Castle Buick GMC
vin 
1GT4UMEY2TF296166
Stock #
B26570
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$76,375
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Dealer Discount $7,153
Buick & GMC Consumer Cash Program $3,500
GMC Bonus Cash $2,000
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$64,135
Your Price
$64,135
Disclosure
MSRP
$76,375
2026 GMC Sierra 2500HD Denali

2026 GMC Sierra 2500HD Denali

Disclosure
Location:
Castle Buick GMC
vin 
1GT4UREY3TF296044
Stock #
B26575
Model Code
#TK20743
Exterior
Onyx Black
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$91,410
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Dealer Discount $9,669
GMC Bonus Cash $4,000
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$78,154
Your Price
$78,154
Disclosure
MSRP
$91,410
2026 GMC Sierra 2500HD SLE

2026 GMC Sierra 2500HD SLE

Disclosure
Location:
Castle Buick GMC
vin 
1GT4UMEY3TF296242
Stock #
B26576
Model Code
#TK20743
Exterior
Sterling Metallic
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$76,870
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Dealer Discount $7,317
Buick & GMC Consumer Cash Program $3,500
GMC Bonus Cash $2,000
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$64,466
Your Price
$64,466
Disclosure
MSRP
$76,870
2026 GMC Sierra 2500HD AT4

2026 GMC Sierra 2500HD AT4

Disclosure
Location:
Castle Buick GMC
vin 
1GT4UPEY2TF299070
Stock #
B26578
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$89,914
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Dealer Discount $10,601
GMC Bonus Cash $2,000
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$77,726
Your Price
$77,726
Disclosure
MSRP
$89,914
2026 GMC Sierra 2500HD SLT

2026 GMC Sierra 2500HD SLT

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UNEY7TF287792
Stock #
M260445
Model Code
#TK20743
Exterior
Summit White
Interior
Jet Black
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$82,060
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Dealer Discount $11,244
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$69,194
Your Price
$69,194
Disclosure
MSRP
$82,060
2026 GMC Sierra 2500HD AT4

2026 GMC Sierra 2500HD AT4

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UPEYXTF299592
Stock #
M260460
Model Code
#TK20743
Exterior
Onyx Black
Interior
Jet Black with Kalahari accents
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$91,449
{{unlockCtaDiscountDataByType['new'] && unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel ? unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel : 'Unlock Discount'}}
Dealer Discount $11,047
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$78,780
Your Price
$78,780
Disclosure
MSRP
$91,449
2026 GMC Sierra 2500HD Denali Ultimate

2026 GMC Sierra 2500HD Denali Ultimate

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UXEY3TF299465
Stock #
M260462
Model Code
#TK20743
Exterior
Onyx Black
Interior
Alpine Umber
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$99,149
{{unlockCtaDiscountDataByType['new'] && unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel ? unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel : 'Unlock Discount'}}
Dealer Discount $8,656
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$88,871
Your Price
$88,871
Disclosure
MSRP
$99,149
2026 GMC Sierra 2500HD SLE

2026 GMC Sierra 2500HD SLE

Disclosure
Location:
Castle Buick GMC
vin 
1GT5UME70TF337700
Stock #
B26625
Model Code
#TK20753
Exterior
Onyx Black
Interior
Jet Black
Drivetrain
4WD
Engine
Gas V8 6.6L/
Transmission
Automatic
MSRP
$67,310
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Dealer Discount $6,316
Illinois Doc Fee + Electronic Filing Fee
$413
Your Price
$61,407
Your Price
$61,407
Disclosure
MSRP
$67,310
2026 GMC Sierra 2500HD Denali Ultimate

2026 GMC Sierra 2500HD Denali Ultimate

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UXEY7TF360784
Stock #
M260578
Model Code
#TK20743
Exterior
Downpour Metallic
Interior
Alpine Umber
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$98,884
{{unlockCtaDiscountDataByType['new'] && unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel ? unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel : 'Unlock Discount'}}
Dealer Discount $8,615
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$88,647
Your Price
$88,647
Disclosure
MSRP
$98,884
2026 GMC Sierra 2500HD Denali Ultimate

2026 GMC Sierra 2500HD Denali Ultimate

Disclosure
Location:
Castle Chevrolet GMC McHenry
vin 
1GT4UXEY8TF360485
Stock #
M260582
Model Code
#TK20743
Exterior
Onyx Black
Interior
Alpine Umber
Drivetrain
4WD
Engine
Turbocharged Diesel V8 6.6L/
Transmission
Automatic
MSRP
$98,884
{{unlockCtaDiscountDataByType['new'] && unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel ? unlockCtaDiscountDataByType['new'].unlockDiscountCTAPriceLabel : 'Unlock Discount'}}
Dealer Discount $8,615
GMC Bonus Cash $2,000
Illinois Doc Fee
$378
Your Price
$88,647
Your Price
$88,647
Disclosure
MSRP
$98,884