2021 GMC Terrain engine computer — Electronic Control Module, 3.5L (6 cylinder) price snapshot
- Low
- $30
- Average
- $109
- High
- $125
Year & trim-specific price guide
Used 2021 GMC Terrain Engine Computer — Electronic Control Module, 3.5L (6 cylinder) prices
Trim-specific pricing for the Electronic Control Module, 3.5L (6 cylinder) variant of the 2021 GMC Terrain engine computer, built from 6 real salvage yard listings with condition grade detail.
Price summary
A used 2021 GMC Terrain engine computer (Electronic Control Module, 3.5L (6 cylinder)) costs $30 to $125, with a median asking price of $125. Based on 6 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$125
USD
Condition comparison
Price by part grade
Grade AClean / low wear$30–$1254 listings
Grade BStandard usedUpdating
Grade CVisible wearUpdating
Grade XUngraded$125–$1252 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $30–$125 | 4 | |
| Grade BStandard used | Updating | — | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $125–$125 | 2 |
Median by grade
Grade price comparison
Grade A$125
Ungraded$125
Median asking price by seller-reported condition grade · $30–$125 overall range
Trim-specific context
How does the Electronic Control Module, 3.5L (6 cylinder) compare?
This pricing covers the Electronic Control Module, 3.5L (6 cylinder) variant of the 2021 GMC Terrain engine computer, based on 6 priced listings. Its $125 median is 0% above the 2021 GMC Terrain engine computer overall median of $125.
There are 2 other engine computer variants available for the 2021 GMC Terrain.
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 2021 GMC Terrain engine computer variants are available?
Back to full guide
2021 GMC Terrain engine computer — all trims
Common questions
2021 GMC Terrain engine computer (Electronic Control Module, 3.5L (6 cylinder)) FAQ
How much is a used 2021 GMC Terrain engine computer (Electronic Control Module, 3.5L (6 cylinder))?
Based on 6 priced salvage-yard listings, a used 2021 GMC Terrain engine computer in the Electronic Control Module, 3.5L (6 cylinder) variant lists between $30 and $125, with a median asking price of $125.
Which years use the Electronic Control Module, 3.5L (6 cylinder) engine computer?
In our current dataset, the Electronic Control Module, 3.5L (6 cylinder) variant appears only for the 2021 model year.