2021 Ford Mustang engine computer — Electronic Control Module, EcoBoost, AT price snapshot
- Low
- $65
- Average
- $141
- High
- $300

Year & trim-specific price guide
A used 2021 Ford Mustang engine computer (Electronic Control Module, EcoBoost, AT) costs $65 to $300, with a median asking price of $116. Based on 34 priced salvage yard listings across the US, updated Sep 4, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $65–$300 | 22 | |
| Grade BStandard used | $87–$300 | 10 | |
| Grade CVisible wear | $75–$75 | 1 | |
| Grade XUngraded | $80–$80 | 1 |
Median by grade
Median asking price by seller-reported condition grade · $65–$300 overall range
Trim-specific context
This pricing covers the Electronic Control Module, EcoBoost, AT variant of the 2021 Ford Mustang engine computer, based on 34 priced listings. Its $116 median is 41% below the 2021 Ford Mustang engine computer overall median of $197.
There are 6 other engine computer variants available for the 2021 Ford Mustang.
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 34 priced salvage-yard listings, a used 2021 Ford Mustang engine computer in the Electronic Control Module, EcoBoost, AT variant lists between $65 and $300, with a median asking price of $116.
The Electronic Control Module, EcoBoost, AT variant appears in model years 2020, 2021, 2022, 2023. Prices and availability may differ by year.