2020 GMC Sierra 1500 transmission — (AT), 4x2, 3.0L price snapshot
- Low
- $1,750
- Average
- $2,859
- High
- $5,000

Year & trim-specific price guide
A used 2020 GMC Sierra 1500 transmission ((AT), 4x2, 3.0L) costs $1,750 to $5,000, with a median asking price of $2,698. Based on 28 priced salvage yard listings across the US, updated Aug 3, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $1,750–$5,000 | 6 | |
| Grade BStandard used | $2,186–$2,790 | 15 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $1,800–$4,206 | 7 |
Median by grade
Median asking price by seller-reported condition grade · $1,750–$5,000 overall range
Trim-specific context
This pricing covers the (AT), 4x2, 3.0L variant of the 2020 GMC Sierra 1500 transmission, based on 28 priced listings. Its $2,698 median is 6% below the 2020 GMC Sierra 1500 transmission overall median of $2,883.
There are 11 other transmission variants available for the 2020 GMC Sierra 1500.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Same year, other trims
Back to full guide
Common questions
Based on 28 priced salvage-yard listings, a used 2020 GMC Sierra 1500 transmission in the (AT), 4x2, 3.0L variant lists between $1,750 and $5,000, with a median asking price of $2,698.
The (AT), 4x2, 3.0L variant appears in model years 2020, 2021, 2023. Prices and availability may differ by year.