2018 Infiniti Q50 transmission control module — Power Supply, engine compartment power, 3.0L price snapshot
- Low
- $51
- Average
- $86
- High
- $176

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 2018 Infiniti Q50 transmission control module (Power Supply, engine compartment power, 3.0L) costs $51 to $176, with a median asking price of $75. Based on 18 priced salvage yard listings across the US, updated Sep 25, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $61–$176 | 13 | |
| Grade BStandard used | $51–$75 | 2 | |
| Grade XUngraded | $85–$100 | 3 |
Median by grade
Median asking price by seller-reported condition grade · $51–$176 overall range
Trim-specific context
This pricing covers the Power Supply, engine compartment power, 3.0L variant of the 2018 Infiniti Q50 transmission control module, based on 18 priced listings. Its $75 median is 25% below the 2018 Infiniti Q50 transmission control module overall median of $100.
There are 49 other transmission control module variants available for the 2018 Infiniti Q50.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Same year, other trims
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Common questions
Based on 18 priced salvage-yard listings, a used 2018 Infiniti Q50 transmission control module in the Power Supply, engine compartment power, 3.0L variant lists between $51 and $176, with a median asking price of $75.
The Power Supply, engine compartment power, 3.0L variant appears in model years 2016, 2017, 2018, 2019. Prices and availability may differ by year.