Mazda 3 engine computer — Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer price snapshot
- Low
- $30
- Average
- $116
- High
- $290
Trim-specific price guide
Mazda 3 Engine Computer — Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer prices
Pricing for the Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer variant of the Mazda 3 engine computer, aggregated from 90 salvage yard listings across 2 model years.
Price summary
A used Mazda 3 engine computer (Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer) costs $30 to $290, with a median asking price of $100. Based on 90 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$100
Grade B (good)$81
USD
Condition comparison
Price by part grade
Grade AClean / low wear$30–$29072 listings
Grade BStandard used$71–$1798 listings
Grade CVisible wearUpdating
Grade XUngraded$85–$12510 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $30–$290 | 72 | |
| Grade BStandard used | $71–$179 | 8 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $85–$125 | 10 |
Median by grade
Grade price comparison
Grade A$100
Grade B$81
Ungraded$120
Median asking price by seller-reported condition grade · $30–$290 overall range
Trim-specific context
How is the Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer priced differently?
This pricing covers the Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer variant of the Mazda 3 engine computer, based on 90 priced listings across 2 model years (2021, 2023). Its $100 median is 16% below the Mazda 3 engine computer overall median of $119.
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, (mounted by battery), naturally aspirated, Denso manufacturer cost by year?
Other trims
Other Mazda 3 engine computer variants
Electronic Control Module, (mounted by battery), 2.0L, AT, ID PE19-18881-A
1 yr$91$55 – $218Electronic Control Module, (mounted by battery), 2.0L, AT, ID PEAB-18881-A
1 yr$76$15 – $240Electronic Control Module, (mounted by battery), 2.0L, AT, ID PECX-18881-A
1 yr$100$70 – $300Electronic Control Module, (mounted by battery), 2.0L, MT, ID PE18-18881-A
1 yr$100$20 – $225Electronic Control Module, (mounted by battery), 2.0L, MT, ID PEAA-18881-A
1 yr$146$55 – $395Electronic Control Module, (mounted by battery), 2.5L, AT, ID PE19-18881-A
1 yr$91$65 – $95Electronic Control Module, (mounted by battery), 2.5L, AT, ID PEAB-18881-A
1 yr$76$15 – $240Electronic Control Module, (mounted by battery), 2.5L, AT, ID PECX-18881-A
1 yr$95$70 – $250Electronic Control Module, (mounted by battery), 2.5L, MT, ID PE18-18881-A
1 yr$100$20 – $225Common questions
Mazda 3 engine computer (Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer) FAQ
How much is a used Mazda 3 engine computer (Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer)?
Based on 90 priced salvage-yard listings across 2 model years, a used Mazda 3 engine computer in the Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer variant lists between $30 and $290, with a median asking price of $100.
Which Mazda 3 years use the Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer engine computer?
The Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer variant appears in model years 2021, 2023. Prices and availability differ by year.
Is there a price difference between Electronic Control Module, (mounted by battery), naturally aspirated, Denso manufacturer condition grades?
Yes. Grade A has a median of $100, Grade B has a median of $81. Grade A parts are in excellent condition, B is good, and C is fair.