Used 2018 Ford Mustang engine computer – Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA

Year & trim-specific price guide

Used 2018 Ford Mustang Engine Computer — Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA prices

Trim-specific pricing for the Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA variant of the 2018 Ford Mustang engine computer, built from 48 real salvage yard listings with condition grade detail.

2018 Ford Mustang · Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA

$197

median asking price

48 priced listings · $70–$405

Price summary

A used 2018 Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA) costs $70 to $405, with a median asking price of $197. Based on 48 priced salvage yard listings across the US, updated Aug 30, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$220
Grade B (good)$178

2018 Ford Mustang engine computer — Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA price snapshot

USD
Low
$70
Average
$191
High
$405
48 priced listings used · last updated Aug 30, 2026· How we price·

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Reporting price for 2018 Ford Mustang Engine Computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA)

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Condition comparison

Price by part grade

Grade AClean / low wear$70–$39526 listings
Grade BStandard used$80–$40522 listings
Grade CVisible wearUpdating
Grade XUngradedUpdating

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $70–$405 overall range

Trim-specific context

How does the Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA compare?

This pricing covers the Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA variant of the 2018 Ford Mustang engine computer, based on 48 priced listings. Its $197 median is 30% above the 2018 Ford Mustang engine computer overall median of $151.

There are 6 other engine computer variants available for the 2018 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

Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA in other model years

All years
202047 listings$197$70 – $405201912 listings$201$81 – $296

Same year, other trims

What other 2018 Ford Mustang engine computer variants are available?

Electronic Control Module, EcoBoost, MT

45 listings$120$50 – $284

Electronic Control Module, EcoBoost, AT, ID RMFR3A-12A650-EA

45 listings$91$30 – $331

Electronic Control Module, GT, MT

45 listings$256$116 – $418

Electronic Control Module, EcoBoost, AT, ID JR3A-12A650-NA

44 listings$121$50 – $218

Electronic Control Module, GT, AT

37 listings$150$70 – $325

Electronic Control Module, Shelby GT350, ID FR3A-12B684-EUA

34 listings$186$80 – $494

Back to full guide

2018 Ford Mustang engine computer — all trims

View 2018 guide

Common questions

2018 Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA) FAQ

How much is a used 2018 Ford Mustang engine computer (Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA)?

Based on 48 priced salvage-yard listings, a used 2018 Ford Mustang engine computer in the Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA variant lists between $70 and $405, with a median asking price of $197.

Which years use the Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA engine computer?

The Electronic Control Module, Shelby GT350, ID FR3A-12B684-DRA variant appears in model years 2018, 2019, 2020. Prices and availability may differ by year.