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2018 GMC Sierra 3500HD

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$36,100 - $59,900 Starting MSRP
2018 GMC Sierra 3500HD
2018 GMC Sierra 3500HD
2018 GMC Sierra 3500HD
Get Pricing

Onyx Black

Model Highlights
Body Type





5 Seats


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The GMC Sierra HD comes in many different configurations. The 2500 versions come in one of three body styles -- regular cab with a long bed, crew cab with a short bed and crew cab with a long bed. The 3500 body styles mirror those options but also...

GMC Sierra 3500HD
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Onyx Black

Dark Slate Metallic

Mineral Metallic

Red Quartz Tintcoat

Quicksilver Metallic

Summit White

White Frost Tricoat


Engine Order Code: L96
Engine Type: Gas/Ethanol V8
Displacement: 6.0L/366
Fuel System: Electronic Fuel Injection
SAE Net Horsepower @ RPM: 360 @ 5400
SAE Net Torque @ RPM: 380 @ 4200
Engine Oil Cooler: Yes
Drivetrain: Four Wheel Drive
Trans Order Code: MYD
Trans Type: 6
Trans Description Cont.: Automatic
Trans Description Cont. Again:
First Gear Ratio (:1): 4.03
Second Gear Ratio (:1): 2.36
Third Gear Ratio (:1): 1.53
Fourth Gear Ratio (:1): 1.15
Fifth Gear Ratio (:1): 0.85
Sixth Gear Ratio (:1): 0.67
Reverse Ratio (:1): 3.06
Clutch Size (in):
Trans Power Take Off:
Trans PTO Access:
Transfer Case Model: Magna MP1625/6
Transfer Case Gear Ratio (:1), High: 1.00
Transfer Case Gear Ratio (:1), Low: 2.72
Transfer Case Power Take Off:
Fuel Economy Est-Combined (MPG):
EPA Fuel Economy Est - City (MPG):
EPA Fuel Economy Est - Hwy (MPG):
Cold Cranking Amps @ 0° F (Primary): 720
Cold Cranking Amps @ 0° F (2nd):
Maximum Alternator Capacity (amps): 150
Maximum Alternator Watts:
Total Cooling System Capacity (qts): - TBD -
Gross Axle Wt Rating - Front (lbs): 4800
Gross Axle Wt Rating - Rear (lbs): 7050
Curb Weight - Front (lbs): - TBD -
Curb Weight - Rear (lbs): - TBD -
Gross Vehicle Weight Rating Cap (lbs): 11000
Gross Combined Wt Rating (lbs): 21100
Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
Dead Weight Hitch - Max Tongue Wt. (lbs): 500
Wt Distributing Hitch - Max Trailer Wt. (lbs): 13700
Wt Distributing Hitch - Max Tongue Wt. (lbs): 1370
Fifth Wheel Hitch - Max Trailer Wt. (lbs): 13300
Fifth Wheel Hitch - Max Tongue Wt. (lbs): 3425
Maximum Trailering Capacity (lbs): 22700
Suspension Type - Front: Independent
Suspension Type - Rear: Multi-Leaf
Spring Capacity - Front (lbs): 4800
Spring Capacity - Rear (lbs): 7050
Axle Type - Front: Independent
Axle Type - Rear: Full-Floating
Axle Capacity - Front (lbs): 4800
Axle Capacity - Rear (lbs): 7050
Axle Ratio (:1) - Front:
Axle Ratio (:1) - Rear: 4.10
Shock Absorber Diameter - Front (mm): 51.00
Shock Absorber Diameter - Rear (mm): 51.00
Stabilizer Bar Diameter - Front (in): 1.31
Stabilizer Bar Diameter - Rear (in):
Brake Type: Pwr
Brake ABS System: 4-Wheel
Brake ABS System (Second Line):
Disc - Front (Yes or ): Yes
Disc - Rear (Yes or ): Yes
Front Brake Rotor Diam x Thickness (in): 13.8 x 1.57
Rear Brake Rotor Diam x Thickness (in): 14.17 x 1.34
Drum - Rear (Yes or ):
Rear Drum Diam x Width (in):
Front Tire Order Code: QWF
Rear Tire Order Code: QWF
Spare Tire Order Code:
Front Tire Size: LT265/70R18E
Rear Tire Size: LT265/70R18E
Spare Tire Size:
Front Tire Capacity (lbs): 4800
Rear Tire Capacity (lbs): 7050
Spare Tire Capacity (lbs): - TBD -
Revolutions/Mile @ 45 mph - Front: - TBD -
Revolutions/Mile @ 45 mph - Rear: - TBD -
Revolutions/Mile @ 45 mph - Spare: - TBD -
Front Wheel Size (in): 18 x 8.0
Rear Wheel Size (in): 18 x 8.0
Spare Wheel Size (in):
Front Wheel Material: Aluminum
Rear Wheel Material: Aluminum
Spare Wheel Material:
Steering Type: Pwr Recirculating Ball
Steering Ratio (:1), On Center: 16.00
Steering Ratio (:1), At Lock: N/A
Turning Diameter - Curb to Curb (ft): 56.1
Turning Diameter - Wall to Wall (ft): N/A
Frame Type: Hydroformed
Fuel Tank Capacity, Approx (gal): 36.0
Aux Fuel Tank Capacity, Approx (gal):
Fuel Tank Location: - TBD -
Aux Fuel Tank Location:
Wheelbase (in): 167.70
Length, Overall w/o rear bumper (in): 258.4
Width, Max w/o mirrors (in): 80.51
Height, Overall (in): 78.07
Overhang, Front (in): - TBD -
Overhang, Rear w/o bumper (in): - TBD -
Front Bumper to Back of Cab (in): 151.10
Cab to Axle (in): 55.24
Cab to End of Frame (in): - TBD -
Ground to Top of Load Floor (in): 39.41
Ground to Top of Frame (in): - TBD -
Frame Width, Rear (in): - TBD -
Ground Clearance, Front (in): - TBD -
Ground Clearance, Rear (in): 8.53
Cargo Box Length @ Floor (in): 97.76
Cargo Box Width @ Top, Rear (in): - TBD -
Cargo Box Width @ Floor (in): - TBD -
Cargo Box Width @ Wheelhousings (in): 51.02
Cargo Box (Area) Height (in): 21.22
Tailgate Width (in): - TBD -
Cargo Volume (ft³): 76.3
Ext'd Cab Cargo Volume (ft³): - TBD -
Passenger Capacity: 5
Front Head Room (in): 42.80
Front Leg Room (in): 45.27
Front Shoulder Room (in): 64.84
Front Hip Room (in): 60.73
Second Head Room (in): 40.50
Second Leg Room (in): 40.93
Second Shoulder Room (in): 64.33
Second Hip Room (in): 60.24
Vehicle Name: GMC Sierra 3500HD
Body Style: Crew Cab Pickup
Body Code: E63
EPA Greenhouse Gas Score:
Tons/yr of CO2 Emissions @ 15K mi/year:


This model has 26 different trims.
Description6.0L/366, 360 @ 5400, Automatic

Fuel Economy

This model has 26 different trims.
Cityundefined MPG
Hwyundefined MPG
Combinedundefined MPG
Description6.0L/366, 360 @ 5400, Automatic

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