Ford Mustang engine computer — Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA price snapshot
- Low
- $80
- Average
- $229
- High
- $494
Trim-specific price guide
Ford Mustang Engine Computer — Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA prices
Pricing for the Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA variant of the Ford Mustang engine computer, aggregated from 89 salvage yard listings across 3 model years.
Price summary
A used Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA) costs $80 to $494, with a median asking price of $214. Based on 89 priced salvage yard listings across the US, updated Sep 5, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$312
Grade B (good)$218
Grade C (fair)$80
USD
Condition comparison
Price by part grade
Grade AClean / low wear$85–$49454 listings
Grade BStandard used$100–$39532 listings
Grade CVisible wear$80–$802 listings
Grade XUngraded$150–$1501 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $85–$494 | 54 | |
| Grade BStandard used | $100–$395 | 32 | |
| Grade CVisible wear | $80–$80 | 2 | |
| Grade XUngraded | $150–$150 | 1 |
Median by grade
Grade price comparison
Grade A$312
Grade B$218
Grade C$80
Ungraded$150
Median asking price by seller-reported condition grade · $80–$494 overall range
Trim-specific context
How is the Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA priced differently?
This pricing covers the Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA variant of the Ford Mustang engine computer, based on 89 priced listings across 3 model years (2018, 2019, 2020). Its $214 median is 9% above the Ford Mustang engine computer overall median of $196.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
What does a Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA cost by year?
Other trims
Other Ford Mustang engine computer variants
Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA
3 yrs$197$70 – $405Electronic Control Module, EcoBoost, AT, ID JR3A-12A650-NA
1 yr$121$50 – $218Electronic Control Module, EcoBoost, MT
6 yrs$170$50 – $395Electronic Control Module, EcoBoost, AT, ID RMFR3A-12A650-EA
2 yrs$97$30 – $331Electronic Control Module, GT, AT
6 yrs$187$70 – $547Electronic Control Module, GT, MT
6 yrs$255$80 – $480Electronic Control Module, EcoBoost, AT, ID GR3A-12A650-AZA
1 yr$161$55 – $224Electronic Control Module, EcoBoost, AT, ID KR3A-12A650-HB
1 yr$111$93 – $218Electronic Control Module, Bullitt
1 yr$256$100 – $480Common questions
Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA) FAQ
How much is a used Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA)?
Based on 89 priced salvage-yard listings across 3 model years, a used Ford Mustang engine computer in the Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA variant lists between $80 and $494, with a median asking price of $214.
Which Ford Mustang years use the Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA engine computer?
The Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA variant appears in model years 2018, 2019, 2020. Prices and availability differ by year.
Is there a price difference between Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA condition grades?
Yes. Grade A has a median of $312, Grade B has a median of $218, Grade C has a median of $80. Grade A parts are in excellent condition, B is good, and C is fair.