2018 GMC Sierra 3500HD Double Cab - Specs, Features, 0-60 and Top Speed

2018 GMC Sierra 3500HD Double Cab
MSRP$39,500
Specs
- origin countryUnited States
- engine6 L
- horsepower360 hp @ 5400 rpm
- torque380 lb.-ft. @ 4200 rpm
- transmission6-Speed Shiftable Automatic
- 0-60 time7 sec
- combined fuel economy19 mpg
Trims
performance
zero to 60 mph | 7 sec |
engines
valvetrain | Overhead Valves (OHV) |
transmission | 6-Speed Shiftable Automatic |
engine type | V8 |
compression ratio | 9.40 to 1 |
valves | 32 |
engine displacement | 364 cu.in. |
engine bore x stroke | 4.0 x 3.6 |
engine size | 6 L |
engine horsepower | 360 hp @ 5400 rpm |
engine torque | 380 lb.-ft. @ 4200 rpm |
engine orientation | longitudinal |
engine oil cooler | 1 |
valve timing | 1 |
cylinder head | Aluminum (Optional) |
MPGs
fuel economy city | 16 mpg |
fuel economy highway | 22 mpg |
fuel economy combined | 19 mpg |
fuel tank capacity | 36 gal. |
fuel type | Flex-Fuel Unleaded |
interiors
cargo capacity all seats in place | 19.5 cu.ft. |
front headroom | 42.8 in. |
front hiproom | 60.8 in. |
front legroom | 45.3 in. |
front shoulder room | 64.8 in. |
cargo capacity all seats folded | 13.4 cu.ft. |
maximum cargo capacity | 13.4 cu.ft. |
bed length | 98 cu.ft. |
passenger capacity | 6 |
passenger volume | 88.9 cu.ft. |
2nd row headroom | 38.7 in. |
2nd row hiproom | 60.2 in. |
2nd row legroom | 34.7 in. |
2nd row shoulder room | 64.3 in. |
exterior dimensions
axle ratio | 4.1 |
cab to axle | 55.2 in. |
curb weight | 6765 lbs. |
front axle capacity | 4800 lbs. |
front gawr | 4800 lbs. |
front spring rating | 4800 lbs. |
front tread | 69 in. |
gross weight | 13025 lbs. |
ground clearance | 8.4 in. |
height | 77.6 in. |
length | 248.9 in. |
payload | 6235 lbs. |
pickup bed depth | 97.8 in. |
rear axle capacity | 9750 lbs. |
rear gawr | 9375 lbs. |
rear spring rating | 9375 lbs. |
rear tread | 68.8 in. |
turning radius | 26.4 in. |
wheelbase | 158.1 in. |
width | 96 in. |
frame type | Hydroformed |
towing
maximum towing capacity | 23200 lbs. |
5th wheel towing capacity | 13800 lbs. |
gooseneck towing capacity | 13800 lbs. |
tow hooks | 2 Front |
trailering class | Class IV Trailering With Harness, Hitch & Brake Controller |
fixed tow bar | No |
tow hitch | Trailer Hitch |
brake
brake assist | Yes |
brake drying | No |
electronic brakeforce distribution | No |
abs and driveline traction control | 4-Wheel ABS |
abs channels | 4 |
power regeneration | No |
front brake | Integrated Trailer Brake Controller |
rear brake | Integrated Trailer Brake Controller |
transmission
drivetrain | Rear Wheel Drive |
overdrive | Yes |
rear differential | Rear Locking Differential |
standard transmission | 6-Speed Shiftable Automatic |
transmission electronic control | Yes |
transmission oil cooler | Yes |
paddle shifters | No |
warranty
basic warranty | 3 yr. / 36000 mi. |
drivetrain warranty | 5 yr. / 60000 mi. |
roadside assistance | Yes |
roadside warranty | 5 yr. / 60000 mi. |
free maintenance | 2 yr. / 24000 mi. |
rust warranty | 6 yr. / 100000 mi. |
Other Years

2021 GMC Sierra 3500HD Double Cab
$39,900 - $48,400
6.6 L0-60: 7.5 sec mpg

2020 GMC Sierra 3500HD Double Cab
$39,600 - $47,400
6.6 L0-60: 6.4 - 7.5 sec19 mpg

2017 GMC Sierra 3500HD Double Cab
$38,415 - $51,660
6 L0-60: 7 - 8.1 sec20 mpg

2016 GMC Sierra 3500HD Double Cab
$37,960 - $51,125
6 L0-60: 5.8 - 8.1 sec15 mpg

2015 GMC Sierra 3500HD Double Cab
$37,620 - $50,475
6 L0-60: 7.7 - 8.1 sec15 mpg