2020 Acura ILX engine computer — Electronic Control Module, (Acura Watch Plus), ID 37820R4HC71 price snapshot
- Low
- $40
- Average
- $154
- High
- $295

Year & 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 2020 Acura ILX engine computer (Electronic Control Module, (Acura Watch Plus), ID 37820R4HC71) costs $40 to $295, with a median asking price of $156. Based on 44 priced salvage yard listings across the US, updated Oct 11, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$295 | 35 | |
| Grade BStandard used | $129–$220 | 6 | |
| Grade XUngraded | $66–$125 | 3 |
Median by grade
Median asking price by seller-reported condition grade · $40–$295 overall range
Trim-specific context
This pricing covers the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC71 variant of the 2020 Acura ILX engine computer, based on 44 priced listings. Its $156 median is 1% above the 2020 Acura ILX engine computer overall median of $154.
There are 3 other engine computer variants available for the 2020 Acura ILX.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same year, other trims
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Common questions
Based on 44 priced salvage-yard listings, a used 2020 Acura ILX engine computer in the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC71 variant lists between $40 and $295, with a median asking price of $156.
In our current dataset, the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC71 variant appears only for the 2020 model year.