SLT 4x2 Crew Cab 6.75 ft. box 158.9 in. WB
2021 GMC Sierra 2500HD Specs

Interior
Front head room	43 "
Rear head room	40 "
Front shoulder room	66 "
Rear shoulder room	65 "
Front hip room	61 "
Rear hip room	60 "
Front leg room	44.5 "
Rear leg room	43.4 "
Standard seating	6

Exterior
Length	250.1 "
Body width	81.8 "
Body height	79.8 "
Wheelbase	158.9 "
Ground clearance	10.1 "
Curb	6,562 lbs.
Gross weight	10,350 lbs.

Fuel
Fuel tank capacity	36.0 gal.

Performance
Base engine size	6.6 liters
Base engine type	V-8
Horsepower	401 hp
Horsepower rpm	5,200
Torque	464 lb-ft.
Torque rpm	4,000
Payload	3,751 lbs.
Maximum towing capacity	14,500 lbs.
Drive type	rear-wheel
Turning radius	26.3 ''

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SLT 4x2 Crew Cab 6.75 ft. box 158.9 in. WB
2021 GMC Sierra 2500HD Specs

2021 GMC Sierra 2500HD trims (32)

(Base) 4x2 Regular Cab 8 ft. box 141.6 in. WB

(Base) 4x2 Double Cab 6.75 ft. box 149.4 in. WB

(Base) 4x2 Double Cab 8 ft. box 162.5 in. WB

(Base) 4x4 Regular Cab 8 ft. box 141.6 in. WB