I've always used the Denso SK20R11 plugs in mine and been pleased.
Pros: been pleased
Part number: SK20R11
Reviews of Denso parts For Business
Average Rating
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The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
4.0
Manufacturer Ranking
#73
635
Spare Parts
17
Country
Japan
Spare Parts
Comparisons
I buy Wix or Denso on RockAuto
Vehicle:
Mazda 3
The alternator is $700, with today\u2019s pricing that\u2019s totally fair. Just checked with local parts suppliers, for a 2.5L Mazda 6, for a quality Denso unit, it\u2019s fucking $350 before markup, and the cheaper options are still over $200! You have to remove the intake for this job which requires new gaskets as well, so for $700 you\u2019re getting a good deal.
Pros: good deal, quality Denso unit
Cons: requires new gaskets
Vehicle:
Mazda 6
the denso I had before was sealed water tight.
Pros: sealed water tight
Denso iridium plugs, no more no less and no exceptions.
Pros: high quality, reliable
denso iridium. do them and they’ll be good for another 200k km or more
Pros: good for 200k km
Mileage: 200000 km
I'm not entirely AC Delco or genuine GM only on that part. I'd consider Denso or Nissens from the online sources I mentioned.
I always use denso coils. Can't trust others.
Pros: reliable, trustworthy
Vehicle:
Lexus
I bought the plugs from Toyota (Denso). I asked for the old plugs off. The plugs I got back were NGKs that were installed at the factory. I can’t say I notice a difference really (except new plugs did seem to make a difference).
Pros: new plugs made difference
Cons: no noticeable difference
Vehicle:
Toyota
Part number: 9008091180
The alternator of my Corolla died. I bought a reman Denso alternator from RockAuto and made the swap. However, the new alternator makes a loud, screeching sound when I start the car. It goes away after a minute-ish.
Cons: loud screeching sound
Vehicle:
Toyota Corolla
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