2022 SIERRA 3500 HD CHASSIS CAB

Shown with equipment from independent suppliers which is not covered by the GM New Vehicle Limited Warranty.
GM is not responsible for the safety or quality of independent supplier alterations.

2021 Sierra Heavy Duty HD Chassis Cab Front Side View

MAX AVAILABLE HORSEPOWER

445 HP^†

MAX AVAILABLE PAYLOAD

7,571 LBS^†

MAX GVWR

14,000 LBS^†

MAX GCWR

40,000 LBS^†

SPEC HIGHLIGHTS

CREW CAB

MAX AVAILABLE PAYLOAD^†

7,040 LBS

OVERALL LENGTH

270.3"

MAX GVWR^†

14,000 LBS

CAB-TO-AXLE LENGTH

60"

MAX GCWR^†

40,000 LBS

GROUND CLEARANCE

8.1"

VEHICLE WIDTH

81.8"

2021 Sierra Heavy Duty HD Regular Chassis Cab Dimensions

REGULAR CAB

MAX AVAILABLE PAYLOAD^†

7,571 LBS

OVERALL LENGTH

239.8"–264.2"

MAX GVWR^†

14,000 LBS

CAB-TO-AXLE LENGTH

60" or 84"

MAX GCWR^†

40,000 LBS

GROUND CLEARANCE

8.1"

VEHICLE WIDTH

81.7"

PROVEN POWERTRAINS AND CAPABILITY

2021 Sierra Heavy Duty HD Chassis Cab Gas Engine

6.6L V8 GAS ENGINE

401 HP
464 lb.-ft. of torque
Compression Ratio of 10.75:1
Valve Train: overhead-valve, two valves per cylinder, variable valve timing
Paired with a 6-speed Automatic Transmission

2021 Sierra Heavy Duty HD Chassis Cab Turbo-diesel Engine

AVAILABLE 6.6L DURAMAX^® TURBO-DIESEL V8 ENGINE

445 HP
910 lb.-ft. of torque
Compression Ratio of 16:1
Diesel Exhaust Brake System
Valve Train: overhead-valve, four valves per cylinder
Factory-installed diesel engine after-run cooling function
Paired with the Allison^® 10-Speed Automatic Transmission

2021 Sierra Heavy Duty HD Chassis Cab Allison Transmission Badge Close up

AVAILABLE ALLISON 10-SPEED AUTOMATIC TRANSMISSION

The Allison 10-speed Automatic Transmission features closer gear spacing that allows the engine to operate in an optimal range at all times with varying load and terrain conditions. An available integrated Power Takeoff (PTO) feature is offered straight from the factory on the Allison transmission, so you can transfer power from the engine to aftermarket equipment, such as a generator or hydraulic pump^†.

Shown with equipment from independent suppliers which is not covered by the GM New Vehicle Limited Warranty. GM is not responsible for the safety or quality of independent supplier alterations.

Available Dual Alternators

Dual alternators are available on both gas and diesel engines that deliver a combined 390 amps to help power the accessories and tools you need to get the job done.

Electric Parking Brake

The Electric Parking Brake momentarily engages the brake system to help prevent truck rollback when transitioning from brake to accelerator pedal or when parking on steep grades under certain conditions. Brake enhancements include extended-hold Hill Start Assist, which provides extra time to start uphill from a complete stop.

Park Grade Hold Assist

Prevents movement when shifting out of park on a hill and moving a foot from brake to accelerator pedal by automatically applying brakes at each wheel for an extended period of time while trailering.

StabiliTrak^®

Sierra HD Chassis Cab’s electronic stability control system helps improve stability by detecting and reducing traction loss.

Available Dual Alternators

Dual alternators are available on both gas and diesel engines that deliver a combined 390 amps to help power the accessories and tools you need to get the job done.

Electric Parking Brake

Park Grade Hold Assist

Prevents movement when shifting out of park on a hill and moving a foot from brake to accelerator pedal by automatically applying brakes at each wheel for an extended period of time while trailering.

StabiliTrak^®

Sierra HD Chassis Cab’s electronic stability control system helps improve stability by detecting and reducing traction loss.

STAY CONNECTED

The advanced technology inside the Sierra 3500 HD Chassis Cab commercial truck helps keep you confidently connected to help you get the job done while on the road.

AVAILABLE 8" DIAGONAL GMC INFOTAINMENT SYSTEM

2022 Sierra Heavy Duty HD Chassis Cab Infotainment System Closeup

The 8" Diagonal GMC Infotainment System^† on SLE (as shown) and the 7" Diagonal GMC Infotainment System on Sierra HD Pro provides voice-activated, hands-free communication and entertainment, including the ability to:

Make and receive hands-free phone calls
Access all of your phone contacts
Enjoy wireless Bluetooth^®streaming audio for music and most phones

AVAILABLE WI-FI® HOTSPOT

Construction Worker Working in 2021 GMC Sierra HD Truck

With the Wi-Fi Hotspot^† you can stay connected to the internet right from the comfort of your Sierra 3500 HD Chassis Cab. Connect up to seven devices including compatible smartphones, tablets and laptops with a reliable high-speed connection. Your passengers can seamlessly check email or stream content, all on the go.

APPLE CARPLAY® COMPATIBILITY

GMC Sierra HD Close Up View of Infotainment System with Apple Apps

With Apple CarPlay compatibility^† you can access iPhone features such as hands-free phone calls and messaging, Apple Music, Apple Maps and more.

ANDROID AUTO™ COMPATIBILITY

GMC Sierra HD Close Up View of Infotainment System with Android Apps

Android Auto^† seamlessly connects your compatible smartphone so you can get directions using Google Maps, listen to music via Google Play Music and more.

2021 Sierra Heavy Duty HD Chassis Cab Infotainment System Closeup

AVAILABLE 8" DIAGONAL GMC INFOTAINMENT SYSTEM

Make and receive hands-free phone calls
Access all of your phone contacts
Enjoy wireless Bluetooth^® streaming audio for music and most phones

AVAILABLE WI-FI® HOTSPOT

APPLE CARPLAY® COMPATIBILITY

With Apple CarPlay compatibility^† you can access iPhone features such as hands-free phone calls and messaging, Apple Music, Apple Maps and more.

ANDROID AUTO™ COMPATIBILITY

Android Auto^† seamlessly connects your compatible smartphone so you can get directions using Google Maps, listen to music via Google Play Music and more.

Man Using Connected Service App on iPad in GMC Sierra HD Chassis Cab

ONSTAR VEHICLE INSIGHTS^™

See more, know more and do more with OnStar Vehicle Insights^†. Get real-time vehicle information that can help you improve route planning, identify select service needs before they become an issue, get driver behavior data and more. Plus, OnStar Vehicle Insights uses embedded OnStar^® hardware, so it’s available in most 2015 and newer GM vehicles and is ready to be activated. It’s the simple way to gain real-time insights to help your business maximize operational efficiency and optimize productivity. Learn more about OnStar Vehicle Insights.

CUSTOM UPFITS^†

Sierra HD Chassis Cabs provide a strong foundation for a wide variety of aftermarket upfits to meet your specific business needs.

LEARN MORE

DUMP TRUCK

Upfit^†Options Include:

Dump Bed
Flatbed
Utility/Service Body
Platform/Stake Body
Snowplow/Spreader
Ambulance/Rescue Body

LOCATE A DEALER
VIEW INVENTORY

FLATBED

Specialty Vehicle Manufacturers

To help make the upfitting process easier, General Motors can recommend specialty vehicle manufacturers who are experienced with General Motors products and specialty applications.

LOCATE A MANUFACTURER

The site being linked to is provided by third-party resources to help you locate products with solutions that could work for your business. The vehicles on the site show equipment from an independent supplier which is not covered by the GM New Vehicle Warranty. GM is not responsible for the safety or quality of independent supplier alterations.