2018 Chevy Suburban alternator — 170 amp (opt KW7) price snapshot
- Low
- $55
- Average
- $150
- High
- $290
Year & trim-specific price guide
Used 2018 Chevy Suburban Alternator — 170 amp (opt KW7) prices
Trim-specific pricing for the 170 amp (opt KW7) variant of the 2018 Chevy Suburban alternator, built from 42 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 19, 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 Chevy Suburban alternator (170 amp (opt KW7)) costs $55 to $290, with a median asking price of $100. Based on 42 priced salvage yard listings across the US, updated Sep 19, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$96
Grade B (good)$155
USD
Condition comparison
Price by part grade
Grade AClean / low wear$55–$29025 listings
Grade BStandard used$56–$28516 listings
Grade XUngraded$65–$651 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $55–$290 | 25 | |
| Grade BStandard used | $56–$285 | 16 | |
| Grade XUngraded | $65–$65 | 1 |
Median by grade
Grade price comparison
Grade A$96
Grade B$155
Ungraded$65
Median asking price by seller-reported condition grade · $55–$290 overall range
Trim-specific context
How does the 170 amp (opt KW7) compare?
This pricing covers the 170 amp (opt KW7) variant of the 2018 Chevy Suburban alternator, based on 42 priced listings. Its $100 median is 35% below the 2018 Chevy Suburban alternator overall median of $153.
There is 1 other alternator variant available for the 2018 Chevy Suburban.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
170 amp (opt KW7) in other model years
Same year, other trims
What other 2018 Chevy Suburban alternator variants are available?
Back to full guide
2018 Chevy Suburban alternator — all trims
Common questions
2018 Chevy Suburban alternator (170 amp (opt KW7)) FAQ
How much is a used 2018 Chevy Suburban alternator (170 amp (opt KW7))?
Based on 42 priced salvage-yard listings, a used 2018 Chevy Suburban alternator in the 170 amp (opt KW7) variant lists between $55 and $290, with a median asking price of $100.
Which years use the 170 amp (opt KW7) alternator?
The 170 amp (opt KW7) variant appears in model years 2015, 2016, 2018, 2019, 2020. Prices and availability may differ by year.