Vehicle price comparison
Hyundai Sonata vs Mazda 3 Engine prices
Price face-off
Median price comparison
Condition comparison
How does the price differ by part grade?
Market analysis
Why does the Hyundai Sonata engine cost more?
A used Hyundai Sonata engine carries a median asking price of $2,458, which is 104% higher than the Mazda 3 at $1,206. Supply also plays a role: Hyundai Sonata has 2,469 priced listings versus 924 for Mazda 3, and more listings generally mean more choices and more competitive pricing.
Our guide covers 10 model years for the Hyundai Sonata (2015–2025) but only 8 for the Mazda 3 (2016–2023), so the Hyundai Sonata data reflects a broader range of generations.
At Grade A (excellent) condition, the Mazda 3 is 44% cheaper ($1,451 vs $2,575) — the gap widens compared to the overall median difference.
The Hyundai Sonata has 8 known trim variants compared to 3 for the Mazda 3, which means buyers need to be more careful about matching the exact engine or drivetrain configuration on the Hyundai Sonata.
Buyer's checklist
What to check before buying a used engine
- Confirm the VIN-matched engine code — the same model can use different engines across trims and years.
- Ask for the mileage on the donor vehicle. Under 80K miles is ideal; over 120K usually needs a compression test.
- Look for signs of overheating: warped heads, milky oil on the dipstick or filler cap, and coolant residue around the head gaskets.
- Check whether accessories (alternator, A/C compressor, power steering pump) are included or if you need to swap yours over.
Full price guide
Hyundai Sonata Engine
$100 – $12,117 · 2,469 listings
Full price guide
Mazda 3 Engine
$2 – $4,650 · 924 listings
Common questions
Hyundai Sonata vs Mazda 3 engine FAQ
Is a used Hyundai Sonata engine cheaper than a Mazda 3?
Mazda 3 has the lower median by $1,252 (104%). The Mazda 3 engine ranges from $2 to $4,650 across 924 listings, while the Hyundai Sonata ranges from $100 to $12,117 across 2,469 listings.
Can I use a Hyundai Sonata engine in a Mazda 3?
This comparison describes pricing, not interchangeability. Even when two parts share similar prices, they may require different engines, trims, electronics, or mounting points. Always match the seller's part number against your VIN before purchasing.
How many listings does this comparison cover?
This comparison draws from 2,469 priced Hyundai Sonata listings and 924 priced Mazda 3 listings — 3,393 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Hyundai Sonata $2,575 vs Mazda 3 $1,451. Grade B (Good): Hyundai Sonata $1,816 vs Mazda 3 $901. Grade C (Fair): Hyundai Sonata $1,030 vs Mazda 3 $1,000. Grade A parts are in excellent condition, B is good, and C is fair — always confirm grading criteria with the seller.
Are there different trim variants to choose from?
Yes. The Hyundai Sonata engine has 8 trim variants and the Mazda 3 has 3. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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