Mazda 3 engine computer — (mounted by battery), 2.5L, MT, ID PY9T-18-881A price snapshot
- Low
- $25
- Average
- $125
- High
- $240

Trim-specific price guide
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
A used Mazda 3 engine computer ((mounted by battery), 2.5L, MT, ID PY9T-18-881A) costs $25 to $240, with a median asking price of $121. Based on 85 priced salvage yard listings across the US, updated Oct 22, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $25–$240 | 83 | |
| Grade XUngraded | $125–$125 | 2 |
Median by grade
Median asking price by seller-reported condition grade · $25–$240 overall range
Trim-specific context
This pricing covers the (mounted by battery), 2.5L, MT, ID PY9T-18-881A variant of the Mazda 3 engine computer, based on 85 priced listings across 2 model years (2017, 2018). Its $121 median is 20% above the Mazda 3 engine computer overall median of $101.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
Other trims
Common questions
Based on 85 priced salvage-yard listings across 2 model years, a used Mazda 3 engine computer in the (mounted by battery), 2.5L, MT, ID PY9T-18-881A variant lists between $25 and $240, with a median asking price of $121.
The (mounted by battery), 2.5L, MT, ID PY9T-18-881A variant appears in model years 2017, 2018. Prices and availability differ by year.
Grade data is limited for this variant. Check individual year pages for the most detail.