2021 GMC Sierra 3500HD Reviews, Pricing & Specs

2021 GMC Sierra 3500HD front-quarter view thumbnail

$37,400 to $68,100

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What owners say

5.0
3 reviews
5
4
3
2
1
Write a review
by John P

This truck is incredible and very comfortable for even daily use.

November 3, 2023
by Anonymous

This truck was what was needed to pull our 42’ 5th wheel safely. It has the comfort of a nice ride and the power to pull and the and the strength to haul what I need.

June 5, 2021
by Joe H

The Black Diamond Edition is one of the most popular trucks out there. There has been only 2 in our area and both sold before they arrived at the lot.

February 8, 2021

Trims & specs

SLE Crew Cab LB RWD specifications

Base MSRP

$46,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab LB DRW RWD specifications

Base MSRP

$48,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB RWD specifications

Base MSRP

$45,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab 4WD specifications

Base MSRP

$57,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab RWD specifications

Base MSRP

$46,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB DRW 4WD specifications

Base MSRP

$49,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab 4WD specifications

Base MSRP

$49,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB 4WD specifications

Base MSRP

$45,600

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab LB DRW 4WD specifications

Base MSRP

$50,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB 4WD specifications

Base MSRP

$47,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab LB 4WD specifications

Base MSRP

$49,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB DRW RWD specifications

Base MSRP

$46,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Denali Crew Cab LB DRW 4WD specifications

Base MSRP

$68,100

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB DRW 4WD specifications

Base MSRP

$46,800

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab LB RWD specifications

Base MSRP

$40,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Denali Crew Cab 4WD specifications

Base MSRP

$66,700

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB RWD specifications

Base MSRP

$42,800

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Denali Crew Cab LB 4WD specifications

Base MSRP

$66,900

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB DRW RWD specifications

Base MSRP

$44,000

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab LB DRW RWD specifications

Base MSRP

$43,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab LB DRW 4WD specifications

Base MSRP

$44,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab LB DRW 4WD specifications

Base MSRP

$46,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab LB 4WD specifications

Base MSRP

$40,200

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab RWD specifications

Base MSRP

$41,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab LB RWD specifications

Base MSRP

$42,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

AT4 Crew Cab LB 4WD specifications

Base MSRP

$60,500

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

LB DRW RWD specifications

Base MSRP

$38,600

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

AT4 Crew Cab 4WD specifications

Base MSRP

$60,300

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab RWD specifications

Base MSRP

$54,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab LB 4WD specifications

Base MSRP

$44,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

LB DRW 4WD specifications

Base MSRP

$41,400

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Crew Cab 4WD specifications

Base MSRP

$44,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

LB RWD specifications

Base MSRP

$37,400

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB DRW 4WD specifications

Base MSRP

$58,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB 4WD specifications

Base MSRP

$57,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB RWD specifications

Base MSRP

$54,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB DRW RWD specifications

Base MSRP

$56,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab LB DRW RWD specifications

Base MSRP

$41,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Pricing trends

MSRP range

$37,400 - $68,100

Current avg. market price

$63,497

Trending up by 0.8% this month

May 2026 - November 2026

See full price trends

$37,400 to $68,100

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© 2026 CarGurus, Inc., All Rights Reserved.