I just swapped out an original set from 2006 that had exactly 165,050 on them. Car still ran great before the swap.
Pros: car ran great
Best Spark plug for Hyundai Sonata
OE plugs for this engine is NGK Laser Iridium. Hyundai/Kia usually use either Denso or NGK plugs.
Vehicle:
Hyundai Sonata
My original spark plugs lasted over 150k km. Replacing them corrected a weird accel issue (power drop on full accel).
Pros: long lasting
Cons: caused accel issue
Vehicle:
Hyundai Sonata
Mileage: 150000 km
It has 90k miles and we've been having issues with spark plugs. 3 months ago we replaced them after a cylinder 2 misfire. About a month ago same thing. Both times they looked terrible. Diode was all corroded and the threads had oil on them. Last night on my way to work cylinder 2 misfire came back. Anyway, I always use iridium ngk plugs as thats what's recommended but they are getting expensive having to buy them every month or 2.
Cons: terrible condition, corroded diode, oil on threads, frequent replacement, expensive
Vehicle:
Hyundai Sonata
Mileage: 90000 km
Warning about Bosch spark plugs!!! The piece of ceramic around the electrode failed. These were in a 2018 sonata turbo for about 10k miles. Thank God it didn't fall in...
Cons: ceramic around electrode failed
Vehicle:
Hyundai Sonata
Mileage: 10000 km
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Other parts for Hyundai Sonata
Top manufacturers of spark plug for Hyundai Sonata
This part for Hyundai Sonata is made around the world. We have reviews for spark plug manufacturers from countries such as: Japan, South Korea, Germany .
In March 2026, the ranking of spark plug for Hyundai Sonata on PartReview included 3 manufacturers. It is based on 5 reviews and 16 votes.
Which spark plug to choose for Hyundai Sonata?
Last month, PartReview users preferred NGK. 18% of positive votes went to this manufacturer.
In second place: spark plug OEM Hyundai — 0%.
Third place: Bosch with 0% of the votes.
In the overall ranking of spark plug, which aggregates opinions of owners of different car makes and models, these brands hold the following positions:
- NGK ranked 1, PR Score — 81. Based on 763 reviews and 2360 votes.
- OEM Hyundai does not yet have enough reviews to participate in the ranking. You can help by adding a review and specifying this brand and your car model.
- Bosch — rank 3, PR Score — 61. Based on 264 reviews and 832 votes.
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