Which spark plug to choose — NGK or Denso?
If choosing spark plug across many manufacturers, check the part ranking.
If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
![Comparison of spark plug NGK and Denso]( "Which is better — spark plug NGK or Denso")
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which spark plug are better — Denso or NGK?
In March 2026 on PartReview, spark plug NGK were overall better than Denso.
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NGK received a PR Score of 81 out of 100,
and Denso scored 78 points.
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NGK ranked 1 in the overall ranking,
and Denso ranked 2.
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The average rating is higher for NGK (4) than for Denso (3.9).
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Spark plug NGK have better feature ratings than Denso:
- Starting - owners believe, that this property for NGK is better than Denso.
- Idle - drivers claim, that this property for Denso is outperforms NGK.
- Acceleration - reviews suggest, that by this property NGK does not differ from Denso.
Which spark plug are more popular — NGK or Denso?
In March 2026 on PartReview, spark plug NGK were overall more popular than Denso.
By vote balance, spark plug NGK surpassed Denso:
- For NGK, the ratio of positive (1933) to negative (427) votes is 1506 votes.
- For Denso, the ratio of positive (447) to negative (123) votes is 324 votes.
By number of reviews, spark plug NGK surpassed Denso:
- For spark plug NGK there are 763 reviews: 597 positive, 71 neutral, 95 negative.
- For spark plug Denso there are 184 reviews: 137 positive, 18 neutral, 29 negative.
Which spark plug do car owners prefer — NGK or Denso?
In March 2026, according to PartReview,
spark plug NGK led more car-specific ratings than Denso:
NGK are chosen by owners of cars such as:
Ford Mustang, Hyundai Sonata, Mazda 3, Volkswagen Golf, Audi A4, Ford Focus, Honda Civic, Honda Fit, Toyota 4runner, Volkswagen Jetta, Volkswagen Passat, Volkswagen Tiguan,
and others.
Spark plug Denso have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
Other comparisons of spark plug
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug NGK with:
Bosch,
Autolite,
Champion,
AC DELCO,
BRISK,
OEM Volkswagen,
OEM Toyota,
Motorcraft,
OEM FORD,
OEM BMW.
Also available: comparisons of spark plug Denso with:
Bosch,
Autolite,
Champion,
AC DELCO,
BRISK,
OEM Volkswagen,
OEM Toyota,
Motorcraft,
OEM FORD,
OEM BMW.
You can also see who is better among other spark plug manufacturers:
Bosch or NGK,
NGK or Autolite,
NGK or Champion,
NGK or AC DELCO,
NGK or BRISK.
