NGK vs. Denso plugs

Does the forum have a preference? I have an '06 4.0L Automatic and it's time for plugs.

 

denso plugs seem to be the better choice on the 4.0L

 

Densos seem to wear a bit slower than NGKs so most recommend Denso
Denso K20HR-U11 is the OEM plugs.

 

the great plug debate rages on

 

I cant speak to the 4.0 but in the 80 series world Denso seems to be the top choice though I don't see a lot of complaints for NGK, consensus seems to be get one or the other but nothing else.

 

The original plugs in my 06' Prerunner (Denso) went 180k before changing out to Denso SK20HR-11.

 

Won't notice a difference on Toyota, 2nd gen plugs are so cheap you can buy OEM without flinching. I guess I recommend denso by a slight margin because its OEM.

 

Denso

 

Thanks Everyone. The Denso's are cheaper so that's what I will go with.

 

Don't buy from Amazon as a warning, there's counterfeit plugs on there that are killing engines. (incase anyone else needs to see this)

https://www.denso-technic.com/fighting-the-fakes

https://www.ngkntk.com/newsroom/blog/emea/fake-or-not/

 

Want a shock? Price them at the dealer, they're more than double from the parts places (at least last time I priced them here). And NGK and Denso are OEM; early sixes came with one side NGKs and one of Densos (I didn't believe some of the people posting here until I changed my plugs and yep, one side side of one, one of the other).

 

I work at a dealer, when I started they were 2.50 Canadian, they really vary from place to place.

Mark up is stupid and 2020-2022 shortages increased prices and they've never come back down. I havent paid attention to what they cost now.

 

Do you, or anyone, know why they did this, and why they stopped?

 

I'm pretty sure all 4.0l Tacoma's had half Denso and half NGK.
The general concensus seems to be that it was a contracting deal with both companies or something like that.

 

I went down that rabbit hole once.
https://www.tacomaworld.com/threads/2015-taco-spark-plug-confusion.674162/page-4#post-23749085

 

I found Denso's vary because of where they are made,I try and look for the ones from Japan.

 

Last time I bought plugs, they were cheaper at the dealership. Some dealerships sell parts at whatever Toyota's MSRP is. Some make up their own prices, usually way above that.

 

My dealership is about $7.00 each.
Or about $50 for 6

 

The Denso K20HR-U11 is a standard series plug and the

$57 SK20HR11 ---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW

SK20HR11 is the Iridium about twice the price and go at least 100k miles.
Both same size and heat range with 0.44 gap pre-set. I use the Iridium and purchase at local auto store and can always find a discount code.
Must be 20 different brands/types to choose from and as many opinions.

 

$3,50 each @ my Toyota dealership