The 2021 GMC Sierra 3500HD Base is a tough, no-nonsense heavy-duty pickup built to handle demanding jobs with durability and strength. With serious towing and hauling capability, a rugged chassis, and a work-focused design, it’s ready for challenging tasks at the job site or when towing heavy trailers. The Base trim keeps things straightforward and functional with essential features and a practical interior layout, making it ideal for drivers who need dependable performance without extra frills. Whether you’re hauling equipment, towing loads, or tackling daily work demands, this Sierra 3500HD Base delivers strong capability and real-world reliability.

Options:

Preferred Equipment Group 1SA

Snow Plow Prep Package

Suspension Package

6 Speakers

6-Speaker Audio System Feature

AM/FM radio

Premium audio system: GMC Infotainment System

Radio: AM/FM w/GMC Infotainment System

Air Conditioning

4-Way Manual Driver Seat Adjuster

Power Rear Windows w/Express Down

Power steering

Power windows

Remote Keyless Entry

Traction control

4-Wheel Disc Brakes

ABS brakes

Dual front impact airbags

Dual front side impact airbags

Front anti-roll bar

Front wheel independent suspension

Low tire pressure warning

Occupant sensing airbag

Overhead airbag

Brake assist

Electronic Stability Control

Delay-off headlights

Fully automatic headlights

Steering Wheel-Mounted Cruise Control

2-Speed Electronic Shift Transfer Case

Dual rear wheels

170 Amp Alternator

730 Cold-Cranking Amps/70 Amp-hr Auxiliary Battery

Dual 220-Amps Primary/170-Amps Aux Alternators

Heavy-Duty 80 Amp Battery

Bumpers: chrome

Chrome Surround Grille w/Black Mesh

Front License Plate Kit

High-Visibility Molded in Black Outside Mirrors

Power Adjustable Black Outside Mirrors

Apple CarPlay/Android Auto

Auto-Dimming Inside Rear-View Mirror

Driver door bin

Front reading lights

Outside temperature display

Overhead console

Passenger vanity mirror

Rear reading lights

Tachometer

Tilt steering wheel

Trip computer

Upfitter Switch Kit (5)

Voltmeter

4-Way Manual Passenger Seat Adjuster

Front 40/20/40 Split-Bench Seat

Split folding rear seat

Vinyl Seat Trim

Front Center Armrest w/Storage

Passenger door bin

Integrated Trailer Brake Controller

17" Painted Steel Wheels

Solar Absorbing Tinted Glass

Variably intermittent wipers

3.73 Rear Axle Ratio