2020 Mazda 3 engine computer price snapshot
- Low
- $49
- Average
- $154
- High
- $255
Year-specific price guide
Used 2020 Mazda 3 Engine Computer prices
Year-specific used engine computer pricing for the 2020 Mazda 3, built from real salvage yard and junkyard listings with condition grade and fitment detail.
Price summary
A used 2020 Mazda 3 engine computer costs $49 to $255, with a median asking price of $170. Based on 56 priced salvage yard listings across the US, compatible across 2019–2023 (5 model years), updated Sep 4, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$166
Grade B (good)$181
USD
Condition comparison
Price by part grade
Grade AClean / low wear$49–$25549 listings
Grade BStandard used$80–$2306 listings
Grade CVisible wearUpdating
Grade XUngraded$55–$551 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $49–$255 | 49 | |
| Grade BStandard used | $80–$230 | 6 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $55–$55 | 1 |
Median by grade
Grade price comparison
Grade A$166
Grade B$181
Ungraded$55
Median asking price by seller-reported condition grade · $49–$255 overall range
Replacement cost
What is the 2020 Mazda 3 engine computer replacement cost?
- Used part
- $170
- 2020 Mazda 3 median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $265–$620
- median used part + labor
Labor is a typical independent-shop range for engine computer replacement, not a quote for your vehicle; it does not include programming and key relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full engine computer replacement cost breakdown
Fitment matters
Price by trim & variant
Year-specific context
How does the 2020 Mazda 3 compare?
The 2020 guide is based on 60 observed listings, including 56 with posted prices. Its $170 median is 43% above the Mazda 3 guide's $119 median.
Among the 10 model years with current price data, 2020 ranks #7 from lowest to highest median.
Interchange data shows this part is also listed under model years 2019, 2021, 2022, 2023. Shopping across all 5 compatible years may surface better prices or condition grades.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Compare model years
What does a Mazda 3 engine computer cost in other years?
202594 listings$188$90 – $3552024660 listings$179$45 – $4322023145 listingsCompatible$100$25 – $331202250 listingsCompatible$247$120 – $5802021145 listingsCompatible$96$25 – $331201949 listingsCompatible$107$25 – $3312018568 listings$86$15 – $465201650 listings$150$80 – $4652015317 listings$99$15 – $395
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Common questions
2020 Mazda 3 engine computer FAQ
How much is a used 2020 Mazda 3 engine computer?
Based on 56 priced salvage-yard listings, a used 2020 Mazda 3 engine computer lists between $49 and $255, with a median asking price of $170.
How much does it cost to replace a 2020 Mazda 3 engine computer?
Using a used part, a 2020 Mazda 3 engine computer replacement typically runs $265–$620 all-in: the median used engine computer for this year lists at $170, and independent-shop labor for engine computer replacement typically takes 1–3 hours at $95–$150/hr ($95–$450). The labor figure does not include programming and key relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.
Will a 2020 Mazda 3 engine computer fit another year?
Based on salvage-yard interchange data, listings for the 2020 Mazda 3 engine computer also appear under model years 2019, 2021, 2022, 2023, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.
How much is a 2020 Mazda 3 ecu?
A ecu is another name for a engine computer. The prices on this page cover the 2020 Mazda 3 engine computer — median $170, from 56 listings.