$3,925 lower median
2021 Chevrolet Silverado
All trims
$31,299Median asking price · 6,955 qualifying listings
Middle 50%$27,194–$36,188
Find listings on VehiSales ↗Actual High Country listing photo; individual equipment may differ.
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2021 GMC Sierra SLT
VIN
3GTP8DED5MG166316
Market price for this build
$31,650
55 comparable listings
No longer listed since around Aug 7, 2026
Last listed by Lancaster Motor Company · Lancaster, SC
- Last asking price
- $40,997
- Odometer
- 27,238 mi
- On the market
- 4 months
Get the history report — $9.99
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See similar cars for sale ↓ Compare with other brands ↓The date is when the listing came down — the final sale price isn't public. Prices further down describe the market for this build, not this car.
Last listed by Lancaster Motor Company
1616 Charlotte Hwy, Lancaster, SC 29720
They no longer list this VIN, but may have a similar one — worth a call.
Contact details come from the dealer's listing and public business records. VinAssessment is not the seller and takes no fee — you deal with the dealer directly.
Inside your report
VIN report
2021 GMC Sierra SLT
VIN 3GTP8DED5MG166316
Accidents
Reported damage & accident records
Title
Salvage, flood & other title brands
Mileage
Recorded odometer readings
Listings
Past prices, dealers & listing photos
Section preview · Results shown in the full report
Market price range
Based on 55 comparable same-build listings · Market data as of November 4, 2026Below market
$26,079
Typical price
$31,650
Above market
$37,479
THE SMARTER NEXT STEP
Love this car? See what else is out there.
2021 GMC Sierra SLT for sale near LancasterSC
85 cheaper within 50 miles · best $36,522 less
10 same trim
from $30,083
▼ $10,914 less
Gastonia
22 from 2020–2022, same body
from $4,475
▼ $36,522 less
Columbia
53 one trim down
from $20,886
▼ $20,111 less
Matthews
See all 123 cars near you →
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50 miles around Lancaster
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Vehicle locations appear when available.
Price history for this VIN
Price dropped $528 (−1.3%) over 77 days.
Apr 10, 2026 · $41,525
Jun 26, 2026 · $40,997
Asking prices recorded across 3 listing dates for VIN 3GTP8DED5MG166316, spanning 77 days.
Listings
Full listing history on VehiSales →No active listings of this exact VIN right now.
Former listings
| Dealer | Location | Price | Mileage | Listed | Seen |
|---|---|---|---|---|---|
| Lancaster Motor Company | Lancaster, SC 29720 | $40,997 | 27,238 mi | 2026-06-26 | 90 d ago |
| Taylor Smith Automotive | Kannapolis, NC 28083 | $38,499 | 27,092 mi | 2026-04-11 | 133 d ago |
Decoded from the VIN
NHTSA build data for 3GTP8DED5MG166316Trim
SLT
Engine
Drivetrain
4x2
Body
Pickup
Fuel
Gasoline
Doors
4
Model year
2021
Made by
GENERAL MOTORS LLC
Full factory specs for this build →
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Fuel economy (EPA)
Combined
26
MPG
City
23
MPG
Highway
30
MPG
$1,790
/yr est. fuel
Assumes 15,000 miles a year at $3.10/gallon and 26 MPG combined.
5-year cost to own
Beyond the sticker: what this 2021 GMC Sierra likely costs over five years at 15,000 mi/yr.
Depreciation
$11,136
Fuel
$8,950
Insurance
$7,000
Maintenance & repairs
$3,750
Total, 5 years
$30,836
Estimate — insurance and taxes vary by driver and state.
Model-level data for the 2021 GMC Sierra from EPA fueleconomy.gov, refreshed October 26, 2026.
Where the price is heading
Typical asking price for a 2021 GMC Sierra over the last 6 months — the market softened $1,506 in that span.
Jun
Jul
Aug
Sep
Oct
Nov
Monthly price table
| Month | Typical price |
|---|---|
| June 2026 | $36,500 |
| July 2026 | $36,990 |
| August 2026 | $35,999 |
| September 2026 | $35,989 |
| October 2026 | $34,990 |
| November 2026 | $34,994 |
A little comparison goes a long way
About this comparison ↓What else could you drive?
Compare 2021 GMC Sierra with other models from the same year. Choose the trims that matter to you.
As of November 4, 2026, among same-year alternatives to the 2021 GMC Sierra in this catalog, the 2021 Nissan Titan has the lowest median asking price ($28,900, 450 listings with photos) and the 2021 Toyota Tundra the highest ($38,353, 665 listings).
Comparison catalog · Snapshot November 4, 2026, 05:00 UTC · Only listings with photos. This sample is separate from the price overview above and its figures differ.
Your comparison starting point
2021 GMC Sierra
All trims · United States
$35,224Comparison catalog median · 4,081 listings with photos in the comparison sample
This VIN is not in the filtered catalog sample. Comparisons use the model median when available.
Middle 50%: $30,990–$40,491
Explore this model’s prices →Photo: AT4 · 80,067 mi · view VIN
Explore the alternatives
Change trims, mileage or location →
$3,481 lower median
2021 Ford F-150
All trims
$31,743Median asking price · 4,673 qualifying listings
Middle 50%$26,999–$36,864
Find listings on VehiSales ↗Actual Lariat listing photo; individual equipment may differ.
$5,399 lower median
2021 Ram 1500
All trims
$29,825Median asking price · 4,793 qualifying listings
Middle 50%$25,287–$34,534
Find listings on VehiSales ↗Actual several trims listed listing photo; individual equipment may differ.
$6,324 lower median
2021 Nissan Titan
All trims
$28,900Median asking price · 450 qualifying listings
Middle 50%$24,562–$33,011
Find listings on VehiSales ↗Actual Crew Cab listing photo; individual equipment may differ.
$3,129 higher median
2021 Toyota Tundra
All trims
$38,353Median asking price · 665 qualifying listings
Middle 50%$33,873–$44,465
Find listings on VehiSales ↗Actual SR5 Grade listing photo; individual equipment may differ.
Compare prices side by side
| Model / trim | Median | Middle 50% | Listings |
|---|---|---|---|
| 2021 GMC Sierra All trims | $35,224 | $30,990–$40,491 | 4,081 |
| 2021 Chevrolet Silverado All trims | $31,299 | $27,194–$36,188 | 6,955 |
| 2021 Ford F-150 All trims | $31,743 | $26,999–$36,864 | 4,673 |
| 2021 Ram 1500 All trims | $29,825 | $25,287–$34,534 | 4,793 |
| 2021 Nissan Titan All trims | $28,900 | $24,562–$33,011 | 450 |
| 2021 Toyota Tundra All trims | $38,353 | $33,873–$44,465 | 665 |
What these prices mean
Only catalog listings with photos are included. Trim names do not verify equivalent equipment. Prices are asking prices, not completed sales. Alternatives share the body style and class of the source model; the nearest model years are used when the same year has too few listings. Price differences are not a valuation adjustment or guaranteed savings.
Snapshot: November 4, 2026, 05:00 UTC. 17 source listings excluded by statistical price screening; this does not verify that every deposit or payment ad has been removed.
VehiSales opens in a new tab with the model, year and known mileage range. Confirm trim, fuel, drivetrain, condition and location on VehiSales; its live inventory may differ.
Market by model year
Gen 4 · 2019–2021What each model year costs right now — live supply, median asking price and how much value each year keeps versus the newest one.
| Year | Units for sale | Median price | vs newest | Avg mileage |
|---|---|---|---|---|
| 2021 | 4,893 | $35,149 | 100% | 86,160 mi |
| 2020 | 3,474 | $34,492 | 98% | 94,660 mi |
| 2019 | 2,047 | $30,626 | 87% | 98,433 mi |
Units for sale — listings of each model year in the latest nightly market snapshot.
