2020 Toyota 4Runner alternator — (4.0L, 1GRFE engine, 6 cylinder), 100 amp price snapshot
- Low
- $45
- Average
- $139
- High
- $243
Year & trim-specific price guide
Used 2020 Toyota 4Runner Alternator — (4.0L, 1GRFE engine, 6 cylinder), 100 amp prices
Trim-specific pricing for the (4.0L, 1GRFE engine, 6 cylinder), 100 amp variant of the 2020 Toyota 4Runner alternator, built from 49 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 updatedNov 1, 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 2020 Toyota 4Runner alternator ((4.0L, 1GRFE engine, 6 cylinder), 100 amp) costs $45 to $243, with a median asking price of $125. Based on 49 priced salvage yard listings across the US, updated Nov 1, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$125
Grade B (good)$217
USD
Condition comparison
Price by part grade
Grade AClean / low wear$45–$24347 listings
Grade BStandard used$105–$2172 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $45–$243 | 47 | |
| Grade BStandard used | $105–$217 | 2 |
Median by grade
Grade price comparison
Grade A$125
Grade B$217
Median asking price by seller-reported condition grade · $45–$243 overall range
Trim-specific context
How does the (4.0L, 1GRFE engine, 6 cylinder), 100 amp compare?
This pricing covers the (4.0L, 1GRFE engine, 6 cylinder), 100 amp variant of the 2020 Toyota 4Runner alternator, based on 49 priced listings. Its $125 median is 8% below the 2020 Toyota 4Runner alternator overall median of $136.
There is 1 other alternator variant available for the 2020 Toyota 4Runner.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
(4.0L, 1GRFE engine, 6 cylinder), 100 amp in other model years
Same year, other trims
What other 2020 Toyota 4Runner alternator variants are available?
Back to full guide
2020 Toyota 4Runner alternator — all trims
Common questions
2020 Toyota 4Runner alternator ((4.0L, 1GRFE engine, 6 cylinder), 100 amp) FAQ
How much is a used 2020 Toyota 4Runner alternator ((4.0L, 1GRFE engine, 6 cylinder), 100 amp)?
Based on 49 priced salvage-yard listings, a used 2020 Toyota 4Runner alternator in the (4.0L, 1GRFE engine, 6 cylinder), 100 amp variant lists between $45 and $243, with a median asking price of $125.
Which years use the (4.0L, 1GRFE engine, 6 cylinder), 100 amp alternator?
The (4.0L, 1GRFE engine, 6 cylinder), 100 amp variant appears in model years 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. Prices and availability may differ by year.