capability

ENGINEERED TO CONQUER

The Next Generation Sierra Heavy Duty pickup truck offers up to 35,500 lbs of max towing. It’s built strong so you can tow strong with a larger drive shaft than the previous generation and rear axle that increase durability and strength. A bigger grille and engine fan help improve engine cooling. Improved brakes and steering offer superior control.

Available Allison® 10-speed Automatic Transmission

All-New 6.6L V8 Gas Engine  

Available 6.6L Duramax Turbo Diesel V8  

ADVANCED POWER

The Next Generation Sierra Heavy Duty truck features advanced engines that power a confident driving and trailering experience.

All-New 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 the 6-speed automatic transmission

Available 6.6L Duramax Turbo Diesel V8

  • 445 hp
  • 910 lb-ft of torque
  • Compression Ratio of 16:1
  • Diesel Exhaust Brake System
  • Valve Train: overhead-valve, four valves per cylinder
  • First-ever factory installed Diesel Engine After-Run cooling function
  • Paired with the Allison® 10-Speed Automatic Transmission

Learn more about engine capability at GMC Life.

2500 ENGINES

6.6 L V-8 gasoline

6.6 L V-8 Turbo Diesel  

CYLINDER HEAD MATERIAL

Cast Aluminum

Cast Aluminum

COMPRESSION RATIO

10.75 : 1

16 : 1

VALVETRAIN

Overhead-valve, two valves per cylinder, variable valve trimming

Overhead-valve, four valves per cylinder

FUEL DELIVERY

Direct Fuel Injection

Common-Rail Direct Fuel Injection

HORSEPOWER
(hp @rpm)

401 @5200

445 @2800

TORQUE
(lb.-ft @rpm)

464 @4000

910 @1600

2500 TRANSMISSIONS & AXLES

6L90 SIX-SPEED AUTOMATIC TRANSMISSION (6.6L GAS)

ALLISON 10-SPEED AUTOMATIC TRANSMISSION (6.6L DIESEL)

GEAR RATIOS (:1)

6L90

10L1000

FIRST GEAR

4.03

4.54

SECOND GEAR

2.36

2.87

THIRD GEAR

1.53

2.06

FOURTH GEAR

1.15

1.72

FIFTH GEAR

0.85

1.48

SIXTH GEAR

0.67

1.26

SEVENTH GEAR

1.00

EIGHTH GEAR

0.85

NINTH GEAR

0.69

TENTH

0.63

REVERSE

3.06

4.54

AXLE RATIO

3.73

3.42

REAR AXLE RING GEAR SIZE

11.5 in.

11.5 in.

3500 ENGINES

6.6 L V-8 gasoline

6.6 L V-8 Turbo Diesel 

CYLINDER HEAD MATERIAL

Cast Aluminum

Cast Aluminum

COMPRESSION RATIO

10.75 : 1

16 : 1

VALVETRAIN

Overhead-valve, two valves per cylinder, variable valve trimming

Overhead-valve, four valves per cylinder

FUEL DELIVERY

Direct Fuel Injection

Common-Rail Direct Fuel Injection

HORSEPOWER (hp @rpm)

401 @5200

445 @2800

TORQUE (lb.-ft @rpm)

464 @4000

910 @1600

3500 TRANSMISSIONS & AXLES

6L90 SIX-SPEED AUTOMATIC TRANSMISSION (6.6L GAS)

ALLISON 10-SPEED AUTOMATIC TRANSMISSION (6.6L DIESEL)

GEAR RATIOS (:1)

6L90

10L1000

FIRST GEAR

4.03

4.54

SECOND GEAR

2.36

2.87

THIRD GEAR

1.53

2.06

FOURTH GEAR

1.15

1.72

FIFTH GEAR

0.85

1.48

SIXTH GEAR

0.67

1.26

SEVENTH GEAR

1.00

EIGHTH GEAR

0.85

NINTH GEAR

0.69

TENTH

0.63

REVERSE

3.06

4.54

AXLE RATIO

3.73

3.42

REAR AXLE RING GEAR SIZE

11.5 in.

12 in.

Available ProGradeTrailering System

Available Auto Electric Parking Brake

Available X31 Off-Road Package

Available Digital Variable Steering Assist

Available Traction Select System with Off-Road and Tow/Haul Mode

Available 2-Speed AutoTrac Transfer Case

Available Gooseneck/Fifth-Wheel Prep Package

NEXT STEPS

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Excludes other GM vehicles.

  • Canyon’s 7700-lb rating requires 2WD Crew Cab model with available Duramax 2.8L I-4 Diesel engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.

  • Requires 4WD Double Cab with available 6.2L V8 and Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires 2WD Crew Cab DRW equipped with 6.6L Duramax Diesel and fifth-wheel or gooseneck hitch. Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Seating for 9 requires SLE with front bench seat.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Passenger's 9,600-lb rating requires a 2500 or 3500 Regular wheelbase model with available 6.0L V8 engine and trailering equipment package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo’s 10,000-lb rating requires  the available 6.0L V8 engine and trailering equipment package.  Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual.  The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cutaway’s 9,006-lb rating requires a 4500 Series 159" Wheelbase model with available 6.0L V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped; includes weight of vehicle and trailer combination, including the weight of driver, passengers, fuel, optional equipment and cargo in the vehicle and trailer.

  • Maximum Gross Vehicle Weight Rating (GVWR). When properly equipped; includes weight of vehicle, passengers, cargo and equipment.

  • Canyon’s 7000-lb rating requires available trailering package and 3.6L V-6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Sierra's 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Sierra Denali's 9,300-lb rating requires 2wd. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Passenger's 10,000-lb rating requires 2500 Wheel Base with 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo's 10,000-lb rating requires 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped, includes weight of vehicle, passengers, cargo and equipment.

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch (late availability). Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges. Bed/Roof-Mounted Bicycle Carriers shown. Requires crossbars or Thule Rack Solution. Non-GM warranty. Warranty by Thule®. See dealer for more information.

  • Available. Requires 2.0L Turbocharged gas engine.

  • Terrain's 3,500-lb rating requires available 2.0L Turbocharged gas engine and available trailering equipment. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires available 3.6L V6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Yukon’s 8,500-lb rating requires short wheelbase 2wd with 5.3L EcoTec3 V8 engine and HD Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

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