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Spare parts reviews ➔ All comparisons ➔ Denso ➔ OEM Subaru

Spark plug Denso or OEM Subaru

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Denso
OEM Subaru
OEM Subaru › Spark plug
Past_Illustrator8802
  • Starting:
Rating 4.0

The most expensive proposition was a new windshield, but your particular insurance could solve that. Spark plug replacement was a surprise as far as cost is concerned. I've routinely changed the oil and cvt fluid once. No other maintenance issues. I love the car. Incredible roominess in the cabin and very capable offroad when needed.

Pros: no other maintenance issues, capable offroad
Cons: expensive windshield, costly spark plug replacement
Vehicle: Subaru Forester
Mileage: 98000 km
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Denso › Spark plug
EnoSoles
Rating 5.0

Bro ABSOLUTELY do the spark plugs yourself. I bought oem Denso spark plugs from Napa Auto for about $180. Then all you need is a spark plug socket w/ swivel head, 10mm socket, 12mm, a couple extensions, needle nose pliers, dielectric grease, and a pick to make life easier.

Pros: save money, easy job
Cons: time consuming for beginner
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Denso › Spark plug
delux2769
  • Idle:
  • Acceleration:
Rating 4.0

New Denso Platinum spark plugs. Car drives great, no codes, no sputtering or stalling or hesitation.

Pros: car drives great, no sputtering
Vehicle: Toyota MR2
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Denso › Spark plug
SnuggleWarrior117
  • Idle:
Rating 3.0

Swapped the NGKs (around 60k miles on them) for new OEM Denso plugs. That stopped the shaking for about two days, then it came back.

Pros: stopped shaking for days
Cons: shaking came back
Vehicle: Lexus
Mileage: 96560 km
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Denso › Spark plug
unfer5
  • Starting:
  • Acceleration:
Rating 1.0

I’ve had several Denso plugs do this on a couple Camrys I service, and our own. All 2.4 cars. Caused tow ins for both husband and wife’s cars. I’ve fired denso as a spark plug provider, too many failures.

Pros: null
Cons: too many failures
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Which spark plug to choose — Denso or OEM Subaru?

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 Denso and OEM Subaru
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which spark plug are better — OEM Subaru or Denso?

In March 2026 on PartReview, spark plug Denso were overall better than OEM Subaru.

  1. Denso received a PR Score of 78 out of 100, and OEM Subaru scored 69 points.
  2. Denso ranked 2 in the overall ranking, and OEM Subaru ranked 13.
  3. The average rating is higher for Denso (3.9) than for OEM Subaru (3.7).
  4. Spark plug Denso have better feature ratings than OEM Subaru:
    • Starting - owners believe, that this property for OEM Subaru is better than Denso.
    • Idle - drivers claim, that this property for OEM Subaru is outperforms Denso.
    • Acceleration - reviews suggest, that this property for OEM Subaru is preferred to Denso.

Which spark plug are more popular — Denso or OEM Subaru?

In March 2026 on PartReview, spark plug Denso were overall more popular than OEM Subaru.

By vote balance, spark plug Denso surpassed OEM Subaru:

  • For Denso, the ratio of positive (447) to negative (123) votes is 324 votes.
  • For OEM Subaru, the ratio of positive (32) to negative (14) votes is 18 votes.

By number of reviews, spark plug Denso surpassed OEM Subaru:

Which spark plug do car owners prefer — Denso or OEM Subaru?

In March 2026, according to PartReview, spark plug Denso and OEM Subaru have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.

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 Denso with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.

Also available: comparisons of spark plug OEM Subaru with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.

You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.

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