2021 Chevy Silverado 1500 transmission control module — Temperature, (RH under dash), ID 84579087 price snapshot
- Low
- $40
- Average
- $155
- High
- $200

Year & trim-specific price guide
A used 2021 Chevy Silverado 1500 transmission control module (Temperature, (RH under dash), ID 84579087) costs $40 to $200, with a median asking price of $190. Based on 50 priced salvage yard listings across the US, updated Sep 3, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$195 | 31 | |
| Grade BStandard used | $40–$200 | 19 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | Updating | — |
Median by grade
Median asking price by seller-reported condition grade · $40–$200 overall range
Trim-specific context
This pricing covers the Temperature, (RH under dash), ID 84579087 variant of the 2021 Chevy Silverado 1500 transmission control module, based on 50 priced listings. Its $190 median is 0% above the 2021 Chevy Silverado 1500 transmission control module overall median of $190.
There are 26 other transmission control module variants available for the 2021 Chevy Silverado 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
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Common questions
Based on 50 priced salvage-yard listings, a used 2021 Chevy Silverado 1500 transmission control module in the Temperature, (RH under dash), ID 84579087 variant lists between $40 and $200, with a median asking price of $190.
The Temperature, (RH under dash), ID 84579087 variant appears in model years 2020, 2021, 2023, 2024. Prices and availability may differ by year.