Chevy Silverado 1500 alternator — 100 amp (opt KY4) price snapshot
- Low
- $45
- Average
- $130
- High
- $875
Trim-specific price guide
Chevy Silverado 1500 Alternator — 100 amp (opt KY4) prices
Pricing for the 100 amp (opt KY4) variant of the Chevy Silverado 1500 alternator, aggregated from 39 salvage yard listings across 2 model years.
Price summary
A used Chevy Silverado 1500 alternator (100 amp (opt KY4)) costs $45 to $875, with a median asking price of $75. Based on 39 priced salvage yard listings across the US, updated Sep 9, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$75
Grade B (good)$100
USD
Condition comparison
Price by part grade
Grade AClean / low wear$45–$87518 listings
Grade BStandard used$50–$18410 listings
Grade CVisible wearUpdating
Grade XUngraded$50–$75011 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $45–$875 | 18 | |
| Grade BStandard used | $50–$184 | 10 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $50–$750 | 11 |
Median by grade
Grade price comparison
Grade A$75
Grade B$100
Ungraded$80
Median asking price by seller-reported condition grade · $45–$875 overall range
Trim-specific context
How is the 100 amp (opt KY4) priced differently?
This pricing covers the 100 amp (opt KY4) variant of the Chevy Silverado 1500 alternator, based on 39 priced listings across 2 model years (2016, 2018). Its $75 median is 40% below the Chevy Silverado 1500 alternator overall median of $124.
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 100 amp (opt KY4) cost by year?
Other trims
Other Chevy Silverado 1500 alternator variants
2.0L
1 yr$132$46 – $249170 amp (opt KW7)
5 yrs$123$35 – $280150 amp (opt KG4)
2 yrs$162$55 – $214classic style (mirrors mount in window corner)
1 yr$125$85 – $205new style (mirrors mount on door skin), 170 amp (opt KW7)
1 yr$100$55 – $201new style (mirrors mount on door skin), 220 amp (opt KW5), ID 13527173
1 yr$90$50 – $290new style (mirrors mount on door skin), 220 amp (opt KW5), ID 13529433
1 yr$83$45 – $280new style (mirrors mount on door skin), 220 amp (opt KW5), ID 13531751
1 yr$90$50 – $290new style (mirrors mount on door skin), 220 amp (opt KW5), ID 13534128
1 yr$90$50 – $290Common questions
Chevy Silverado 1500 alternator (100 amp (opt KY4)) FAQ
How much is a used Chevy Silverado 1500 alternator (100 amp (opt KY4))?
Based on 39 priced salvage-yard listings across 2 model years, a used Chevy Silverado 1500 alternator in the 100 amp (opt KY4) variant lists between $45 and $875, with a median asking price of $75.
Which Chevy Silverado 1500 years use the 100 amp (opt KY4) alternator?
The 100 amp (opt KY4) variant appears in model years 2016, 2018. Prices and availability differ by year.
Is there a price difference between 100 amp (opt KY4) condition grades?
Yes. Grade A has a median of $75, Grade B has a median of $100. Grade A parts are in excellent condition, B is good, and C is fair.