SLT K2XX

K2XX · 2015–2019RWDPickup

The Sierra 3500HD SLT is a four-door, six-seat rear-wheel-drive pickup built from 2015 to 2019. A 6.6-litre turbo-diesel V8 produces 445 PS and 910 Nm through an Allison 6-speed automatic gearbox.

439 hpPower

2015-2019Year

Engineering passport

Specifications

Powertrain

Engineering details

Engine6.6L turbo-diesel V8

Displacement6.6 L

Cylinders8

FuelDiesel

Transmission6-speed Allison Automatic

DrivetrainRWD

Performance

Numbers that matter

Power439 hp

Torque910 Nm

Dimensions & body

Width2057 mm

Height2032 mm

BodyPickup

Doors4

Seats6

STORY

The Sierra 3500HD is GMC's one-ton heavy-duty pickup and the highest-capacity truck in the Sierra range, with dual-rear-wheel (dually) versions available. It is built for the highest payload and for fifth-wheel/gooseneck towing, and it pairs the Duramax turbo-diesel with the Allison automatic for commercial and heavy-hauling work. It shares its platform with the Chevrolet Silverado 3500HD.

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