2021 Hyundai Elantra transmission control module — Driver Assist, ID 99910BY200 price snapshot
- Low
- $75
- Average
- $178
- High
- $295

Year & trim-specific price guide
A used 2021 Hyundai Elantra transmission control module (Driver Assist, ID 99910BY200) costs $75 to $295, with a median asking price of $171. Based on 31 priced salvage yard listings across the US, updated Aug 31, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $125–$275 | 8 | |
| Grade BStandard used | $75–$295 | 23 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | Updating | — |
Median by grade
Median asking price by seller-reported condition grade · $75–$295 overall range
Trim-specific context
This pricing covers the Driver Assist, ID 99910BY200 variant of the 2021 Hyundai Elantra transmission control module, based on 31 priced listings. Its $171 median is 43% above the 2021 Hyundai Elantra transmission control module overall median of $120.
There are 25 other transmission control module variants available for the 2021 Hyundai Elantra.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same year, other trims
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Common questions
Based on 31 priced salvage-yard listings, a used 2021 Hyundai Elantra transmission control module in the Driver Assist, ID 99910BY200 variant lists between $75 and $295, with a median asking price of $171.
In our current dataset, the Driver Assist, ID 99910BY200 variant appears only for the 2021 model year.