2021 GMC Sierra
3GTN8AEH4MG276802
This vehicle is no longer listed. The figures below describe the market for this build.
Market price range
Based on 6 comparable same-build listings · Market data as of September 4, 2026Listings
Full listing history on VehiSales →No active listings of this exact VIN right now.
Estimate the monthly payment at the typical market price ($21,592)
This vehicle is no longer listed, so the estimate starts from $21,592 — the typical market price for this build. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Decoded from the VIN
NHTSA build data for 3GTN8AEH4MG276802Full factory specs for this build →
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Fuel economy (EPA)
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.
Estimate — insurance and taxes vary by driver and state.
Model-level data for the 2021 GMC Sierra from EPA fueleconomy.gov, refreshed August 27, 2026.
Where the price is heading
Typical asking price for a 2021 GMC Sierra over the last 6 months — the market firmed $1,462 in that span.
Monthly price table
| Month | Typical price |
|---|---|
| April 2026 | $34,940 |
| May 2026 | $36,867 |
| June 2026 | $36,500 |
| July 2026 | $36,991 |
| August 2026 | $36,089 |
| September 2026 | $36,402 |
How it compares to rivals
Median asking price for comparable body styles listed near this car| Model | Median price | For sale nearby | vs this car |
|---|---|---|---|
| 2021 GMC Sierra (this car) | $21,592 | 6 | — |
| 2022 Ford F-150 | $34,311 | 31 | +$12,719 |
| 2022 Ram 1500 | $30,311 | 15 | +$8,719 |
| 2023 Chevrolet Silverado | $40,308 | 11 | +$18,716 |
| 2021 Toyota Tacoma | $31,862 | 8 | +$10,270 |
| 2022 Chevrolet Silverado HD | $32,528 | 6 | +$10,936 |
Cheapest active listings of each comparable body style in this region — median of what those models actually ask.
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 | 4,482 | $36,700 | 100% | 84,094 mi |
| 2020 | 3,125 | $35,853 | 98% | 93,991 mi |
| 2019 | 1,885 | $31,792 | 87% | 97,900 mi |
Units for sale — listings of each model year in the latest nightly market snapshot.
