2016 GMC Sierra 1500 alternator — 100 amp (opt KY4) price snapshot
- Low
- $40
- Average
- $85
- High
- $125
Year & trim-specific price guide
Used 2016 GMC Sierra 1500 Alternator — 100 amp (opt KY4) prices
Trim-specific pricing for the 100 amp (opt KY4) variant of the 2016 GMC Sierra 1500 alternator, built from 8 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 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 2016 GMC Sierra 1500 alternator (100 amp (opt KY4)) costs $40 to $125, with a median asking price of $110. Based on 8 priced salvage yard listings across the US, updated Sep 22, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$120
USD
Condition comparison
Price by part grade
Grade AClean / low wear$110–$1253 listings
Grade XUngraded$40–$1205 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $110–$125 | 3 | |
| Grade XUngraded | $40–$120 | 5 |
Median by grade
Grade price comparison
Grade A$120
Ungraded$55
Median asking price by seller-reported condition grade · $40–$125 overall range
Trim-specific context
How does the 100 amp (opt KY4) compare?
This pricing covers the 100 amp (opt KY4) variant of the 2016 GMC Sierra 1500 alternator, based on 8 priced listings. Its $110 median is 57% above the 2016 GMC Sierra 1500 alternator overall median of $70.
There are 2 other alternator variants available for the 2016 GMC Sierra 1500.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
100 amp (opt KY4) in other model years
Same year, other trims
What other 2016 GMC Sierra 1500 alternator variants are available?
Back to full guide
2016 GMC Sierra 1500 alternator — all trims
Common questions
2016 GMC Sierra 1500 alternator (100 amp (opt KY4)) FAQ
How much is a used 2016 GMC Sierra 1500 alternator (100 amp (opt KY4))?
Based on 8 priced salvage-yard listings, a used 2016 GMC Sierra 1500 alternator in the 100 amp (opt KY4) variant lists between $40 and $125, with a median asking price of $110.
Which years use the 100 amp (opt KY4) alternator?
The 100 amp (opt KY4) variant appears in model years 2016, 2017, 2018. Prices and availability may differ by year.