2020 GMC Sierra 1500 transmission control module — Suspension, (rear frame), ID 84447009 price snapshot
- Low
- $45
- Average
- $153
- High
- $380

Year & trim-specific price guide
A used 2020 GMC Sierra 1500 transmission control module (Suspension, (rear frame), ID 84447009) costs $45 to $380, with a median asking price of $159. Based on 48 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 | $45–$380 | 33 | |
| Grade BStandard used | $50–$243 | 13 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $50–$125 | 2 |
Median by grade
Median asking price by seller-reported condition grade · $45–$380 overall range
Trim-specific context
This pricing covers the Suspension, (rear frame), ID 84447009 variant of the 2020 GMC Sierra 1500 transmission control module, based on 48 priced listings. Its $159 median is 14% below the 2020 GMC Sierra 1500 transmission control module overall median of $185.
There are 37 other transmission control module 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 year, other trims
Back to full guide
Common questions
Based on 48 priced salvage-yard listings, a used 2020 GMC Sierra 1500 transmission control module in the Suspension, (rear frame), ID 84447009 variant lists between $45 and $380, with a median asking price of $159.
In our current dataset, the Suspension, (rear frame), ID 84447009 variant appears only for the 2020 model year.