2021 GMC Sierra 3500 SLT

Specifications, live market data, colors, and factory features.

3 for sale right now

$40,194 – $45,396

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Specifications

Performance

Engine: 6.6L 8-Cylinder L8T - SIDI, VVT, CAST IRON
Transmission: Automatic
Drivetrain: 4WD

Fuel & Efficiency

Fuel: Gasoline

Body & Practicality

Body Style: Truck
Doors: 4

Live Market Data

Computed from active 2021 GMC Sierra 3500 SLT listings nationwide, updated continuously.

For sale now3

Median price$40,440

Average price$42,010

Price range$40,194 – $45,396

Avg. days on market19

Avg. mileage101,299 mi

New / Used0 / 3

Latest SLT Listings

The newest 2021 GMC Sierra 3500 SLTs on the market.

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Used 2021 GMC Sierra 3500

SLT

$40,440

150,679 mi

Est. $590/mo*

18 days at this dealer

RedGray

Orr GMC

Longview, TX

Used 2021 GMC Sierra 3500

SLT

$45,396

55,454 mi

Est. $660/mo*

18 days at this dealer

WhiteBlack

Pricepro

Maumee, OH

Used 2021 GMC Sierra 3500

SLT

$40,194

97,764 mi

Est. $586/mo*

74 days at this dealer

WhiteBlack

Drive Nation

Glendale, AZ

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The median 2021 GMC Sierra 3500 SLT lists for $40,440 today.

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