GMC Terrain engine computer — Emission Control, (DEF tank module) price snapshot
- Low
- $30
- Average
- $105
- High
- $325
Trim-specific price guide
GMC Terrain Engine Computer — Emission Control, (DEF tank module) prices
Pricing for the Emission Control, (DEF tank module) variant of the GMC Terrain engine computer, aggregated from 62 salvage yard listings across 2 model years.
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 22, 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 GMC Terrain engine computer (Emission Control, (DEF tank module)) costs $30 to $325, with a median asking price of $100. Based on 62 priced salvage yard listings across the US, updated Oct 22, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$125
Grade B (good)$94
Grade C (fair)$65
USD
Condition comparison
Price by part grade
Grade AClean / low wear$50–$32531 listings
Grade BStandard used$50–$23021 listings
Grade CVisible wear$65–$651 listings
Grade XUngraded$30–$799 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $50–$325 | 31 | |
| Grade BStandard used | $50–$230 | 21 | |
| Grade CVisible wear | $65–$65 | 1 | |
| Grade XUngraded | $30–$79 | 9 |
Median by grade
Grade price comparison
Grade A$125
Grade B$94
Grade C$65
Ungraded$78
Median asking price by seller-reported condition grade · $30–$325 overall range
Trim-specific context
How is the Emission Control, (DEF tank module) priced differently?
This pricing covers the Emission Control, (DEF tank module) variant of the GMC Terrain engine computer, based on 62 priced listings across 2 model years (2018, 2019). Its $100 median is 6% above the GMC Terrain engine computer overall median of $94.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
What does a Emission Control, (DEF tank module) cost by year?
Other trims
Other GMC Terrain engine computer variants
Electronic Control Module, (LH engine compartment), 1.5L
3 yrs$82$45 – $331Electronic Control Module, (LH engine compartment), 1.6L
2 yrs$145$40 – $333Electronic Control Module, (LH engine compartment), 2.0L
3 yrs$82$50 – $331Non-Interchange search using GMC Terrain and similar models
1 yr$186$50 – $413Non-Interchange search using only GMC Terrain
1 yr$186$50 – $413Common questions
GMC Terrain engine computer (Emission Control, (DEF tank module)) FAQ
How much is a used GMC Terrain engine computer (Emission Control, (DEF tank module))?
Based on 62 priced salvage-yard listings across 2 model years, a used GMC Terrain engine computer in the Emission Control, (DEF tank module) variant lists between $30 and $325, with a median asking price of $100.
Which GMC Terrain years use the Emission Control, (DEF tank module) engine computer?
The Emission Control, (DEF tank module) variant appears in model years 2018, 2019. Prices and availability differ by year.
Is there a price difference between Emission Control, (DEF tank module) condition grades?
Yes. Grade A has a median of $125, Grade B has a median of $94, Grade C has a median of $65. Grade A parts are in excellent condition, B is good, and C is fair.