2021 Mazda 3 engine price snapshot
- Low
- $572
- Average
- $1,545
- High
- $4,650
Year-specific price guide
Used 2021 Mazda 3 Engine prices
Year-specific used engine 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 engine costs $572 to $4,650, with a median asking price of $1,638. Based on 132 priced salvage yard listings across the US, compatible across 2018–2023 (6 model years), updated Aug 3, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$1,775
Grade B (good)$875
USD
Condition comparison
Price by part grade
Grade AClean / low wear$600–$3,09387 listings
Grade BStandard used$572–$2,60036 listings
Grade CVisible wearUpdating
Grade XUngraded$800–$4,6509 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $600–$3,093 | 87 | |
| Grade BStandard used | $572–$2,600 | 36 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $800–$4,650 | 9 |
Median by grade
Grade price comparison
Grade A$1,775
Grade B$875
Ungraded$1,500
Median asking price by seller-reported condition grade · $572–$4,650 overall range
Replacement cost
What is the 2021 Mazda 3 engine replacement cost?
- Used part
- $1,638
- 2021 Mazda 3 median asking price
- Labor
- $950–$3,000
- 10–20 hours at $95–$150/hr
- Estimated total
- $2,590–$4,640
- median used part + labor
Labor is a typical independent-shop range for engine replacement, not a quote for your vehicle; it does not include fluids, gaskets, and any while-in-there parts like mounts or a clutch. The part price is the live median from the salvage-yard listings on this page. How we price
Fitment matters
Price by trim & variant
Year-specific context
How does the 2021 Mazda 3 compare?
The 2021 guide is based on 148 observed listings, including 132 with posted prices. Its $1,638 median is 36% above the Mazda 3 guide's $1,206 median.
Among the 8 model years with current price data, 2021 ranks #8 from lowest to highest median.
Interchange data shows this part is also listed under model years 2018, 2019, 2020, 2022, 2023. 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 engine cost in other years?
Keep browsing this vehicle
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Tail Light
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Alternator
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AC Compressor
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Strut
$100median
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Steering Rack
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Grille
$235median
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Side Mirror
$152median
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Turbocharger
$398median
$160$1,796
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AC Condenser
$158median
$45$1,150
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$190median
$45$544
21wide ±693%
Fuel Pump
$110median
$25$1,549
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Water Pump
$106median
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23wide ±151%
Power Steering Pump
$136median
$35$445
24wide ±235%
ABS Module
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25
Differential
Price data updating
26wide ±237%
Engine Computer
$119median
$15$580
27wide ±273%
Throttle Body
$96median
$25$550
28wide ±313%
Brake Caliper
$75median
$14$484
29wide ±107%
Drive Shaft
$225median
$76$559
30wide ±207%
Tailgate
$522median
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31wide ±105%
Intake Manifold
$159median
$60$395
32wide ±140%
Control Arm
$110median
$36$343
33wide ±195%
Blower Motor
$76median
$35$331
34wide ±297%
Exhaust Manifold
$325median
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Transmission Control Module
$101median
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Steering Column
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37wide ±132%
Fuel Tank
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38wide ±130%
Window Regulator
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39
Instrument Cluster
Price data updating
40wide ±94%
Torque Converter
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41wide ±111%
Steering Wheel
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$40$440
42wide ±294%
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$22$480
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Car Radio
$125median
$25$662
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Heater Core
$116median
$50$485
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Rear View Mirror
$103median
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Sunroof
$237median
$61$880
47wide ±252%
Master Cylinder
$76median
$22$405
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Fog Light
$75median
$29$275
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Center Console
$106median
$23$445
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Air Bag
$155median
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Door Assembly
$830median
$50$1,192
52wide ±93%
Quarter Panel
$400median
$150$895
53wide ±99%
Rear Bumper Assembly
$466median
$21$941
54wide ±145%
Front Seat
$148median
$49$478
Common questions
2021 Mazda 3 engine FAQ
How much is a used 2021 Mazda 3 engine?
Based on 132 priced salvage-yard listings, a used 2021 Mazda 3 engine lists between $572 and $4,650, with a median asking price of $1,638.
How much does it cost to replace a 2021 Mazda 3 engine?
Using a used part, a 2021 Mazda 3 engine replacement typically runs $2,590–$4,640 all-in: the median used engine for this year lists at $1,638, and independent-shop labor for engine replacement typically takes 10–20 hours at $95–$150/hr ($950–$3,000). The labor figure does not include fluids, gaskets, and any while-in-there parts like mounts or a clutch. Labor is a national part-level estimate, not a quote for your vehicle.
Will a 2021 Mazda 3 engine fit another year?
Based on salvage-yard interchange data, listings for the 2021 Mazda 3 engine also appear under model years 2018, 2019, 2020, 2022, 2023, 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.
How much is a 2021 Mazda 3 motor?
A motor is another name for a engine. The prices on this page cover the 2021 Mazda 3 engine — median $1,638, from 132 listings.