2021 GMC Sierra 2500 SLT

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

3 for sale right now

$44,548 – $50,386

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Specifications

Performance

Engine: 6.6L V-Shaped L5P - DI, DURAMAX, GEN 5 VAR. 1
Transmission: Automatic
Drivetrain: 4WD

Fuel & Efficiency

Fuel: Diesel

Body & Practicality

Body Style: Truck
Doors: 4

Colors

Factory colors on 2021 GMC Sierra 2500 SLTs for sale now.

Exterior

Quicksilver Metallic(silver)2
Summit White(white)1

Interior

Jet Black(black)2
Dark Walnut(gray)1

Live Market Data

Computed from active 2021 GMC Sierra 2500 SLT listings nationwide, updated continuously.

For sale now3

Median price$46,597

Average price$47,177

Price range$44,548 – $50,386

Avg. days on market18

Avg. mileage88,948 mi

New / Used0 / 3

Latest SLT Listings

The newest 2021 GMC Sierra 2500 SLTs on the market.

View all 3 →

Used 2021 GMC Sierra 2500

SLT

$50,386

60,001 mi

Est. $731/mo*

6 days at this dealer

SilverJet Black

Jake Sweeney Chevrolet

Cincinnati, OH

Used 2021 GMC Sierra 2500

SLT

$46,597

72,965 mi

Est. $677/mo*

10 days at this dealer

SilverJet Black

Gates GMC Nissan

North Windham, CT

Used 2021 GMC Sierra 2500

SLT

$44,548

133,877 mi

Est. $648/mo*

63 days at this dealer

Summit WhiteDark Walnut

Ray Skillman Northeast GMC

Indianapolis, IN

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The median 2021 GMC Sierra 2500 SLT lists for $46,597 today.

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GMC Sierra 2500 SLT

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