2018 GMC Terrain alternator — 2.0L price snapshot
- Low
- $50
- Average
- $145
- High
- $275
Year & trim-specific price guide
Used 2018 GMC Terrain Alternator — 2.0L prices
Trim-specific pricing for the 2.0L variant of the 2018 GMC Terrain alternator, built from 30 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 updatedSep 21, 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 2018 GMC Terrain alternator (2.0L) costs $50 to $275, with a median asking price of $161. Based on 30 priced salvage yard listings across the US, updated Sep 21, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$161
Grade B (good)$190
USD
Condition comparison
Price by part grade
Grade AClean / low wear$70–$27523 listings
Grade BStandard used$85–$2756 listings
Grade XUngraded$50–$501 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $70–$275 | 23 | |
| Grade BStandard used | $85–$275 | 6 | |
| Grade XUngraded | $50–$50 | 1 |
Median by grade
Grade price comparison
Grade A$161
Grade B$190
Ungraded$50
Median asking price by seller-reported condition grade · $50–$275 overall range
Trim-specific context
How does the 2.0L compare?
This pricing covers the 2.0L variant of the 2018 GMC Terrain alternator, based on 30 priced listings. Its $161 median is 46% above the 2018 GMC Terrain alternator overall median of $110.
There are 2 other alternator variants available for the 2018 GMC Terrain.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
2.0L in other model years
Same year, other trims
What other 2018 GMC Terrain alternator variants are available?
Back to full guide
2018 GMC Terrain alternator — all trims
Common questions
2018 GMC Terrain alternator (2.0L) FAQ
How much is a used 2018 GMC Terrain alternator (2.0L)?
Based on 30 priced salvage-yard listings, a used 2018 GMC Terrain alternator in the 2.0L variant lists between $50 and $275, with a median asking price of $161.
Which years use the 2.0L alternator?
The 2.0L variant appears in model years 2018, 2020. Prices and availability may differ by year.