Ignition coil DELPHI or NGK

DELPHI Ignition coil
_BEER_
  • Jerks:
Rating 5.0

I changed my ignition coils to delphi aftermarket ones and the idle is nice and smooth now. But the old ones had like 200k km on them.

Pros: idle is nice and smooth
Mileage: 200000 km
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NGK Ignition coil

I've been running the NGK since I'm pretty sure they are the OE manufacturer. Subaru is charging crack prices for those coils.

Pros: OE manufacturer
Cons: expensive
Vehicle: Subaru
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DELPHI Ignition coil

I don’t like the Delphi ones cause they come apart, if you do spark plugs again say 20k miles passes you could deal with the silicone tube on the end getting stuck down when pulling them, then you gotta be careful and get the spring and that out without the spring flying off somewhere.

Cons: come apart, silicone tube stuck
Mileage: 20000 km
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DELPHI Ignition coil
Ok_Meeting1858
  • Jerks:
  • Warning light:
Rating 1.0

The auto shop found out what the problem was as they had replaced two of the ignition coils with OEM and two from a company that produced the ignition coils for Mazda. The two from the company (Delphi) went bad. I have to use only parts from Mazda.

Cons: went bad
Vehicle: Mazda
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Other comparisons

Which ignition coil to choose — DELPHI or NGK?

If choosing ignition coil across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare ignition coil across these categories:

Comparison of ignition coil DELPHI and NGK
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which ignition coil are better — NGK or DELPHI?

In March 2026 on PartReview, ignition coil DELPHI were overall better than NGK.

  1. DELPHI received a PR Score of 76 out of 100, and NGK scored 71 point.
  2. DELPHI ranked 4 in the overall ranking, and NGK ranked 6.
  3. The average rating is higher for DELPHI (3.8) than for NGK (3.5).
  4. Ignition coil DELPHI have better feature ratings than NGK:
    • Warning light - owners believe, that this property for DELPHI is better than NGK.
    • Jerks - drivers claim, that this property for NGK is outperforms DELPHI.
    • Starting - reviews suggest, that this property for NGK is preferred to DELPHI.

Which ignition coil are more popular — DELPHI or NGK?

In March 2026 on PartReview, ignition coil DELPHI were overall more popular than NGK.

By vote balance, ignition coil DELPHI surpassed NGK:

  • For DELPHI, the ratio of positive (90) to negative (27) votes is 63 votes.
  • For NGK, the ratio of positive (59) to negative (23) votes is 36 votes.

By number of reviews, ignition coil DELPHI surpassed NGK:

Which ignition coil do car owners prefer — DELPHI or NGK?

In March 2026, according to PartReview, ignition coil NGK led more car-specific ratings than DELPHI:

NGK are chosen by owners of cars such as: Honda Civic, and others.

Ignition coil DELPHI have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of ignition coil

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of ignition coil DELPHI with: Bosch, Denso, MSD, APR, HITACHI, OEM Volkswagen, BERU, Bremi, Duralast, OEM Audi.

Also available: comparisons of ignition coil NGK with: Bosch, Denso, MSD, APR, HITACHI, OEM Volkswagen, BERU, Bremi, Duralast, OEM Audi.

You can also see who is better among other ignition coil manufacturers: Bosch or Denso, Bosch or DELPHI, Bosch or MSD, Bosch or NGK, Bosch or APR.

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