vs
Spark plug Denso or Motorcraft
Reviews
Spark plugs are only $15 for Denso iridium plugs (providing the longest life) and they take no more than 20 minutes to replace them.
Pros: longest life, easy to replace
Vehicle:
Toyota Corolla
Spark plugs are simple too, just need the proper sockets and swivels. Took me about 45 minutes. That middle plug on passenger side is the toughest, but twisting boot 180 degrees and pulling it out from the front made it a breeze!
Pros: simple, easy to install
Cons: middle plug toughest
If you doing the spark plugs do the coils too. For the spark plugs use Denso 3499 (about 15 dollars each), for the coils use Denso 673-1310, (about 50 dollars each).
Vehicle:
Toyota Matrix
Mileage: 239934 km
Part number: 3499
I also put Motorcraft new plugs back in. Truck is happy. I'm happy.
Pros: truck is happy
I have about 30k on my plugs (Motorcraft OE). I've no problem buying them again as they've held up great
Pros: great durability
Mileage: 30000 km
Denso work quite well
Pros: work quite well
The plugs EQT recommends are compatible. I’ve been running Denso 5749 plugs for over 10k without issue
Pros: compatible, no issues
Mileage: 10000 km
Part number: 5749
Denso or ngk. Bosch at worst. I would recommend against the off brand in your photo.
Pros: Denso or NGK
Cons: Bosch at worst
Had some Denso plugs in my '15 WRX (unaware to me) and the plug in cylinder 2 was fouled within 7k miles and caused a misfire. Turns out the shop that the previous owner took it to for the 60k-mile plug change decided to cheap out. I now have OEM plugs :D
Pros: now have OEM plugs
Cons: fouled within 7k miles
Vehicle:
Subaru
Mileage: 7000 km
Careful with Denso, back in MK7 days some complained that the plugs would shatter and cause engine damage.
Cons: plugs would shatter
Vehicle:
Volkswagen Golf
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