Home >> Car catalog >> GMC >> Sierra 3500HD >> Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed >> 6.6 Duramax TD V8 (445 Hp) 4WD Automatic
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Specs of GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) 4WD Automatic /2020, 2021, 2022, 2023/

Key specs

GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) 4WD Automatic /Pick-up 2020 - 2023/

What is the body type of GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed?
Pick-up, 4 Doors, 5 Seats
What is the power output of GMC Sierra 3500HD Pick-up 2020 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
445 Hp, 1234 Nm
910 lb.-ft.
What is the engine displacement of GMC Sierra 3500HD Pick-up 2020 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
6.6 l
6604 cm3
403 cu. in.
What is the number of cylinders in 2020 GMC 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
8, V-engine
What is the drivetrain of GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed Pick-up 2020 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
All wheel drive (4x4). Internal Combustion engine. The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
What is the length of 2020 GMC Sierra 3500HD Pick-up?
6352 mm
250.08 in.
What is the width of 2020 GMC Sierra 3500HD Pick-up?
2079 mm
81.85 in.
What is the kerb weight of 2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
3573 kg
7877 lbs.
What is the maximum permissible mass of 2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
5489 kg
12101 lbs.
What are the number of gears and the gearbox type of 2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 Duramax TD V8 (445 Hp) 4WD Automatic?
10, automatic transmission Allison
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General information

Brand
GMC
Model
Sierra 3500HD
Generation
Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed
Modification (Engine)
6.6 Duramax TD V8 (445 Hp) 4WD Automatic
Start of production
2020
End of production
2023
Powertrain Architecture
Internal Combustion engine
Body type
Pick-up
Seats
5
Doors
4
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Performance specs

Fuel Type
Diesel
Weight-to-power ratio
8 kg/Hp, 124.5 Hp/tonne
Weight-to-torque ratio
2.9 kg/Nm, 345.4 Nm/tonne

Engine specs

Power
445 Hp @ 2800 rpm.
Power per litre
67.4 Hp/l
Torque
1234 Nm @ 1600 rpm. 910 lb.-ft. @ 1600 rpm.
Engine layout
Front, Longitudinal
Engine Model/Code
Duramax L5P
Engine displacement
6604 cm3 403 cu. in.
Number of cylinders
8
Engine configuration
V-engine
Cylinder Bore
103 mm 4.06 in.
Piston Stroke
99 mm 3.9 in.
Compression ratio
16:1
Number of valves per cylinder
4
Fuel injection system
Diesel Commonrail
Engine aspiration
Turbocharger, Intercooler
Valvetrain
OHV
Engine oil capacity
9.5 l 10.04 US qt | 8.36 UK qt
Engine oil specification
Log in to see.Log in to see.
Coolant
29.1 l 30.75 US qt | 25.6 UK qt
Engine systems
Particulate filter

Volume and weights

Kerb Weight
3573 kg 7877 lbs.
Max. weight
5489 kg 12101 lbs.
Max load
1916 kg 4224 lbs.
Fuel tank capacity
136 l 35.93 US gal | 29.92 UK gal
Permitted trailer load with brakes (12%)
9072 kg 20000 lbs.

Dimensions

Length
6352 mm 250.08 in.
Width including mirrors
2079 mm 81.85 in.
Height
2054 mm 80.87 in.
Wheelbase
4037 mm 158.94 in.
Front track
1731 mm 68.15 in.
Rear (Back) track
1736 mm 68.35 in.
Ride height (ground clearance)
284 mm 11.18 in.

Drivetrain, brakes and suspension specs

Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
Drive wheel
All wheel drive (4x4)
Number of gears and type of gearbox
10 gears, automatic transmission Allison
Front suspension
Coil spring, Double wishbone, Anti-roll bar
Rear suspension
Rigid axle suspension, Leaf spring
Front brakes
Ventilated discs, 350x40 mm
Rear brakes
Ventilated discs, 360x34 mm
Assisting systems
ABS (Anti-lock braking system)
Steering type
Steering rack and pinion
Power steering
Electric Steering
Tire size
265/70 R17; 245/75 R17; 265/70 R18; 265/60 R20
Wheel rim size
7.5J x 17; 8J x 18; 8.5J x 20