Spark plug wires

H

hec983

New member
I'm gonna change the spark plug wires on my 4runner ngk's or denso's which ones you'll recommend I can get them for around 35 compared to the OEM at the dealer for 70. Also would the wires be enough? Or should I change the coils plug boot as well truck has 128k. Thanks
 
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Boots generally last a while. I'd just do the wires. Denso or NGK are fine. How old are your plugs?
 
Make sure you get dual ground denso's or ngk's. Don't put single ground autolites in there unless you want problems...
 
Hec, as someone who is also shopping for new plug wires at this moment, I strongly recommend that you do not go to the stealership.
If your local 'Yota dealers are anything like my local guy you will pay $75 for the same thing you can get on Amazon for $30. -- Look for NGK (4412) TE66 Wire Set $30.83.

HTH
Grossman
 
i just hit 120,000 on my 4runner....when do wires need to be replaced? the wires have never been changed on it before and its ok to use kgk wires with oem spark plugs?
 
Not sure on exact service life as I don't have a manual in front of me. If in doubt, change them.

NGK wires are very good quality. My .02 is to also change the coil boots as well. Regarding plugs, it either came with NGK or Denso depending on what was sourced at the time of production, and either is a good choice. If you buy plugs from Toyota, you are gonna get a NGK or Denso plug (depending on application) in a Toyota box and pay more for it than getting the plug elsewhere.

The 2 OE plug choices are:

NGK 3967 (long part number BKR5EKB-11 )
Denso 3194 (long part number K16TR11)

NGK wires are kit number NGK TE66 (long part number 4412)

NGK coil boot number NGK 58931 and you will need 3

This is all OEM parts, and they are Japanese made. If you buy from Toyota you will be paying more for the box they come in. Hope this helps. :thumb:
 
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I believe spark plug wires are a 100k maintenance interval item. I haven't had any experience with non oem as that's what I got when I did mine. I would totally get oem again because they come with all clips in place and ready to go. Also, if you look online, the spark plug wires are much cheaper. I think mine were around $45. Got them from Olathe Toyota online. Oem plugs aren't any more than the local auto shop so that's a no brainer.
 
I went NGK for plugs and wires after I started getting a cyl #3 misfire. I initially replaced with Denso plugs, but still got the misfire. NGK worked for some reason :wtf:. Coils you shouldn't have to replace unless you're getting misfires and ruled out the wires/plugs/injectors/etc.
 
Kanger328 said:
I went NGK for plugs and wires after I started getting a cyl #3 misfire. I initially replaced with Denso plugs, but still got the misfire. NGK worked for some reason :wtf:. Coils you shouldn't have to replace unless you're getting misfires and ruled out the wires/plugs/injectors/etc.
Click to expand...

You don't need to change the coils, but it's a good idea to change the rubber boot. Especially on an 15+ year old truck.
 
Brian32 said:
Whats the rubber boot...i need to buy 6 spark plugs right?
Click to expand...

Yes, 6 spark plugs. The coil boot connects the coil to the plug, and over time they deteriorate just like spark plug wires do. Read my first post in this thread. It has every part number you need to order to do the job right using quality Japanese parts.
 
madbomber08 said:
What's the difference between the long boot/shaft thing that comes attached to the wires and the coil on plug boot?
Click to expand...

The former go on the driver's side and the latter go on the passenger side--there are three of each. They serve the same function--carry current to the spark plug electrode from the coil.
 
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