2021 Mazda 3 alternator price snapshot
- Low
- $22
- Average
- $138
- High
- $290
Year-specific price guide
Used 2021 Mazda 3 Alternator prices
Year-specific used alternator pricing for the 2021 Mazda 3, built from real salvage yard and junkyard listings with condition grade and fitment detail.
Price summary
A used 2021 Mazda 3 alternator costs $22 to $290, with a median asking price of $120. Based on 83 priced salvage yard listings across the US, compatible across 2019–2024 (6 model years), updated Aug 9, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$146
Grade B (good)$95
USD
Condition comparison
Price by part grade
Grade AClean / low wear$22–$29059 listings
Grade BStandard used$41–$17321 listings
Grade CVisible wearUpdating
Grade XUngraded$140–$1953 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $22–$290 | 59 | |
| Grade BStandard used | $41–$173 | 21 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $140–$195 | 3 |
Median by grade
Grade price comparison
Grade A$146
Grade B$95
Ungraded$150
Median asking price by seller-reported condition grade · $22–$290 overall range
Replacement cost
What is the 2021 Mazda 3 alternator replacement cost?
- Used part
- $120
- 2021 Mazda 3 median asking price
- Labor
- $95–$375
- 1–2.5 hours at $95–$150/hr
- Estimated total
- $215–$495
- median used part + labor
Labor is a typical independent-shop range for alternator replacement, not a quote for your vehicle. The part price is the live median from the salvage-yard listings on this page. Full alternator replacement cost breakdown
Fitment matters
Price by trim & variant
Year-specific context
How does the 2021 Mazda 3 compare?
The 2021 guide is based on 100 observed listings, including 83 with posted prices. Its $120 median is 40% above the Mazda 3 guide's $86 median.
Among the 7 model years with current price data, 2021 ranks #7 from lowest to highest median.
Interchange data shows this part is also listed under model years 2019, 2020, 2022, 2023, 2024. Shopping across all 6 compatible years may surface better prices or condition grades.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Compare model years
What does a Mazda 3 alternator cost in other years?
Keep browsing this vehicle
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Price data updating
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Common questions
2021 Mazda 3 alternator FAQ
How much is a used 2021 Mazda 3 alternator?
Based on 83 priced salvage-yard listings, a used 2021 Mazda 3 alternator lists between $22 and $290, with a median asking price of $120.
How much does it cost to replace a 2021 Mazda 3 alternator?
Using a used part, a 2021 Mazda 3 alternator replacement typically runs $215–$495 all-in: the median used alternator for this year lists at $120, and independent-shop labor for alternator replacement typically takes 1–2.5 hours at $95–$150/hr ($95–$375). Labor is a national part-level estimate, not a quote for your vehicle.
Will a 2021 Mazda 3 alternator fit another year?
Based on salvage-yard interchange data, listings for the 2021 Mazda 3 alternator also appear under model years 2019, 2020, 2022, 2023, 2024, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.