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Used GMC Sierra 1500 for Sale in Longmont, Colorado

The perfect GMC Sierra 1500 is right here at Bumper. See every GMC Sierra 1500 for sale in Longmont, CO all in one place.

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The perfect GMC Sierra 1500 is right here at Bumper. See every GMC Sierra 1500 for sale in Longmont, CO all in one place.

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2026 GMC Sierra 1500 Denali Ultimate

VIN: 1GTUUHE87TZ255571

$83,655

Mileage Mileage:
2
Location Location:
Longmont, CO
Color Color:
Titanium Rush Metallic ext, Alpine Umber int
Body Type Body Type:
Pickup
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2023 GMC Sierra 1500 4WD Crew Cab Standard Box Elevation

VIN: 3GTUUCE85PG117388

$39,882

Mileage Mileage:
104,076
Location Location:
Longmont, CO
Color Color:
Summit White ext, Jet Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTUUCED6TZ227244

$62,735

Mileage Mileage:
3
Location Location:
Longmont, CO
Color Color:
Onyx Black ext, Jet Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Denali Truck

VIN: 3GTUUGEL5TG199001

$73,618

Mileage Mileage:
5
Location Location:
Longmont, CO
Color Color:
Onyx Black ext, Jet Black, Forge perforated leather seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTRUCED6TZ160800

$52,730

Mileage Mileage:
3
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation Truck

VIN: 1GTUUCED0TZ111926

$63,840

Mileage Mileage:
7
Location Location:
Longmont, CO
Color Color:
Downpour Metallic ext, Jet Black, Cloth seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4 Truck

VIN: 3GTUUEEL6TG213704

$77,265

Mileage Mileage:
5
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Jet Black with Kalahari accents, Perforated leathe int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Pro Truck

VIN: 1GTUUAED8TZ225290

$53,182

Mileage Mileage:
5
Location Location:
Longmont, CO
Color Color:
Summit White ext, Jet Black, Cloth seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4 Truck

VIN: 1GTUUEE8XTZ225804

$70,830

Mileage Mileage:
5
Location Location:
Longmont, CO
Color Color:
Volcanic Red Tintcoat ext, Jet Black with Kalahari accents, Perforated leathe int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTPUCEK0TZ147496

$47,035

Mileage Mileage:
6
Location Location:
Longmont, CO
Color Color:
Downpour Metallic ext, Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTPUCEK2TZ147547

$49,035

Mileage Mileage:
7
Location Location:
Longmont, CO
Color Color:
Downpour Metallic ext, Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Denali Truck

VIN: 1GTUUGEL9TZ249415

$77,507

Mileage Mileage:
4
Location Location:
Longmont, CO
Color Color:
Onyx Black ext, Jet Black, Forge perforated leather seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTUUCED6TZ219550

$63,035

Mileage Mileage:
4
Location Location:
Longmont, CO
Color Color:
Titanium Rush Metallic ext, Jet Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4X

VIN: 3GTUUFEL5TG132974

$76,330

Mileage Mileage:
6
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Obsidian Rush int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 SLT Truck

VIN: 3GTUUDE85TG224179

$66,059

Mileage Mileage:
3
Location Location:
Longmont, CO
Color Color:
Glacier White Tricoat ext, Dark Walnut/Slate, Perforated leather-appointed fr int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4X

VIN: 3GTUUFEL0TG132977

$77,480

Mileage Mileage:
4
Location Location:
Longmont, CO
Color Color:
Volcanic Red Tintcoat ext, Obsidian Rush int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation Truck

VIN: 3GTPUJEK9TG145721

$54,854

Mileage Mileage:
7
Location Location:
Longmont, CO
Color Color:
Summit White ext, Jet Black, Cloth seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4

VIN: 1GTUUEEL3TZ209433

$74,140

Mileage Mileage:
24
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Jet Black With Kalahari Accents int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Denali Truck

VIN: 1GTUUGEL1TZ231720

$76,549

Mileage Mileage:
4
Location Location:
Longmont, CO
Color Color:
Glacier White Tricoat ext, Jet Black, Forge perforated leather seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Pro Truck

VIN: 1GTRUAEK2TZ255051

$47,080

Mileage Mileage:
7
Location Location:
Longmont, CO
Color Color:
Summit White ext, Jet Black, Cloth seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4

VIN: 1GTUUEEL8TZ260426

$72,105

Mileage Mileage:
3
Location Location:
Longmont, CO
Color Color:
Onyx Black ext, Jet Black With Kalahari Accents int
Body Type Body Type:
Pickup
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2025 GMC Sierra 1500 Elevation Truck

VIN: 3GTPUCEK7SG275734

$54,430

Mileage Mileage:
3,419
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Jet Black, Cloth seat trim int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 Elevation

VIN: 1GTPUCEK3TZ252257

$53,145

Mileage Mileage:
Call for Mileage
Location Location:
Longmont, CO
Color Color:
Sterling Metallic ext, Black int
Body Type Body Type:
Pickup
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2026 GMC Sierra 1500 AT4

VIN: 3GTUUEEL9TG193349

$73,100

Mileage Mileage:
2
Location Location:
Longmont, CO
Color Color:
Titanium Rush Metallic ext, Jet Black With Kalahari Accents int
Body Type Body Type:
Pickup
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