Used 2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 Ft
Pricing
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Values and Prices
Fair Purchase Price is determined by collecting thousands of actual consumer vehicle purchase prices, plus data from national vehicle registration databases and several other reliable third-party sources.
Estimated Values
Condition | Trade-In Value | Private Party Value | ||
|---|---|---|---|---|
Excellent | $30,360 | $35,720 | ||
Very Good | $29,560 | $34,820 | ||
Good | $28,660 | $33,820 | ||
Fair | $26,460 | $31,220 |
Estimated Trade-In Values for the 2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 ft range from about $26,460 to $30,360 depending on vehicle condition. Estimated Private Party Values range from about $31,220 to $35,720 depending on vehicle condition. Valid for ZIP Code 65101 through 9/23/2026.
2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 ft Depreciation
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2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 Ft Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $5,400 | $36,538 | $33,446 | ||
2024 | $4,960 | $31,578 | $28,767 | ||
2025 | $2,668 | $28,910 | $26,347 | ||
Now | + $5,590 | $34,500 | $29,200 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 Ft Depreciation
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 6708 lbs. | ||
|---|---|---|---|
Fuel Capacity | 36.0 gallons | ||
Front Head Room | 42.8 inches | ||
Front Leg Room | 45.3 inches | ||
Max Seating Capacity | 6 | ||
Minimum Ground Clearance | 8.8 inches | ||
Overall Length | 248.9 inches | ||
Front Shoulder Room | 64.8 inches | ||
Towing Capacity, Maximum | 13900 lbs. | ||
Turning Diameter | 53.1 feet | ||
Wheel Base | 158.1 inches | ||
Truck Bed Volume | 76 cu.ft. | ||
Bed Length | 8.00 feet | ||
Gross Vehicle Weight Rating (GVWR) | 11600 lbs. | ||
Payload Capacity | 4267 lbs. |
Exterior
Fog Lights | Available | ||
|---|---|---|---|
HID Headlights | Available | ||
Number of Doors | 4 doors | ||
Privacy Glass | Available |
Mechanical
Drivetrain | 4WD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
6 speed | Available | ||
Recommended Fuel | Regular | ||
Hill Descent Control | Available | ||
Hill Start Assist | Available | ||
Parking Assist System | Available |
Performance
Horsepower | 360 @ 5400 RPM | ||
|---|---|---|---|
Torque | 380 @ 4200 rpm | ||
Engine | V8, Flex Fuel, 6.0 Liter |
Warranty
Basic | 3 years / 36000 miles | ||
|---|---|---|---|
Powertrain | 5 years / 60000 miles | ||
Corrosion | 6 years / 100000 miles |
2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 ft Standard Features
2018 GMC Sierra 3500 HD Double Cab
KBB.com Review
Kbb.com Expert Rating
If your next heavy-duty pickup needs to be as sophisticated as it is competent, the 2018 GMC Sierra HD has the power and technology to tow and haul like a champ. Denali models offer unsurpassed levels of luxury, while the All Terrain X model is the most off-road-capable Sierra to date.
A number of half-tons now offer an oil-burner under the hood, including the Ram 1500 and Nissan Titan XD. The midsize Chevy Colorado and GMC Canyon are also options. If you need maximum towing, you’ll find better numbers from the heavy-duty F-Series and Ram trucks.
2018 GMC Sierra 3500 HD Double Cab
KBB.com Consumer Reviews
Consumer Rating
2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 ft Safety
Safety Features & Technology
Compare to Similar Vehicles
 Used 2018 GMC Sierra 3500 HD Double Cab SLT Pickup 4D 8 ft |  New 2026 Toyota Tacoma XtraCab |  New 2026 Nissan Frontier King Cab |  Used 2024 Ram 1500 Classic Crew Cab | ||
|---|---|---|---|---|---|
| Price | $36,800 | $34,040 | $33,895 | $33,400 | |
| KBB.com Rating | 4.0 | 4.8 | 4.0 | 3.8 | |
| Consumer Rating | 4.1 | 4.1 | 3.7 | 4.3 | |
| Fuel Economy | N/A | City 20/Hwy 26/Comb 23 MPG | City 19/Hwy 24/Comb 21 MPG | City 15/Hwy 20/Comb 17 MPG | |
| Fuel Type | Flexible Fuel | Gas | Gas | Gas | |
5 Year Cost To Own 5-Year Cost to Own includes out of pocket expenses like fuel and insurance, plus the car’s loss in value over time (depreciation). | N/A | $54,255 | $60,234 | N/A | |
| Seating Capacity | 6 | 2 | 4 | 6 | |
| Basic Warranty | 3 years or 36000 miles | 3 years or 36000 miles | 3 years or 36000 miles | 3 years or 36000 miles | |
| Horsepower | 360 @ 5400 RPM | 228 @ 6000 RPM | 310 @ 6400 RPM | 395 @ 5600 RPM | |
| Engine | V8, Flex Fuel, 6.0 Liter | 4-Cyl, i-FORCE, Turbo, 2.4 Liter | V6, 3.8 Liter | V8, HEMI, 5.7 Liter | |
| Drivetrain | 4WD | 2WD | 2WD | 4WD |