Used 2020 Toyota 4Runner alternator – (4.0L, 1GRFE engine, 6 cylinder), 100 amp

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 50 real salvage yard listings with condition grade detail.
Price summary

A used 2020 Toyota 4Runner alternator ((4.0L, 1GRFE engine, 6 cylinder), 100 amp) costs $55 to $384, with a median asking price of $201. Based on 50 priced salvage yard listings across the US, updated Aug 3, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$178
Grade B (good)$239

2020 Toyota 4Runner alternator — (4.0L, 1GRFE engine, 6 cylinder), 100 amp price snapshot

USD
Low
$55
Average
$179
High
$384
50 priced listings used · last updated Aug 3, 2026· How we price·

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Reporting price for 2020 Toyota 4Runner Alternator ((4.0L, 1GRFE engine, 6 cylinder), 100 amp)

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Condition comparison

Price by part grade

Grade AClean / low wear$55$38435 listings
Grade BStandard used$110$29812 listings
Grade CVisible wearUpdating
Grade XUngraded$56$653 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $55$384 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 50 priced listings. Its $201 median is 16% below the 2020 Toyota 4Runner alternator overall median of $239.

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 50 priced salvage-yard listings, a used 2020 Toyota 4Runner alternator in the (4.0L, 1GRFE engine, 6 cylinder), 100 amp variant lists between $55 and $384, with a median asking price of $201.

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 2016, 2017, 2018, 2019, 2020, 2021, 2022. Prices and availability may differ by year.