2020 Acura ILX engine computer — Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 price snapshot
- Low
- $100
- Average
- $224
- High
- $370
Year & trim-specific price guide
Used 2020 Acura ILX Engine Computer — Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 prices
Trim-specific pricing for the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 variant of the 2020 Acura ILX engine computer, built from 15 real salvage yard listings with condition grade detail.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
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.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 11, 2026AS
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.
Price summary
A used 2020 Acura ILX engine computer (Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81) costs $100 to $370, with a median asking price of $254. Based on 15 priced salvage yard listings across the US, updated Oct 11, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$254
USD
Condition comparison
Price by part grade
Grade AClean / low wear$100–$37015 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $100–$370 | 15 |
Trim-specific context
How does the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 compare?
This pricing covers the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 variant of the 2020 Acura ILX engine computer, based on 15 priced listings. Its $254 median is 65% 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
What other 2020 Acura ILX engine computer variants are available?
Back to full guide
2020 Acura ILX engine computer — all trims
Common questions
2020 Acura ILX engine computer (Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81) FAQ
How much is a used 2020 Acura ILX engine computer (Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81)?
Based on 15 priced salvage-yard listings, a used 2020 Acura ILX engine computer in the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 variant lists between $100 and $370, with a median asking price of $254.
Which years use the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 engine computer?
In our current dataset, the Electronic Control Module, (Acura Watch Plus), ID 37820R4HC81 variant appears only for the 2020 model year.