2007 4runner spark plugs
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BlackWorksInc
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I would run Denso or NGKs, the non-Japanese stuff seems not to play well in Japanese cars (I'm guessing they're a bit racist that way? lol)
The Single VVTi 1GR-FE (4.0L V6) that you have uses Copper Electrode plugs that have a service interval of 30k. You can always upgrade to Iridium if you want them to last longer, but performance does not really change.
The Single VVTi 1GR-FE (4.0L V6) that you have uses Copper Electrode plugs that have a service interval of 30k. You can always upgrade to Iridium if you want them to last longer, but performance does not really change.
Auto-Lite, AC/Delco, Champion all make plugs for the 4runner. But I wouldn't use them. If I owned a GM - I'd use AC/Delco plugs. NGK and Denso make good quality plugs. Some 30 years ago I had a problem with Nippondenso (now called Dens0) plugs. I put a set of plugs on my wife's Datsun 510. They worked fine, but had an awful lot of radio static. I guess the resistor on one or two of the 8 plugs had a problem. Replaced them with NGK and no more problem.
awdjunkies
New member
Back in the day, that's what My father used on his Datsun B210 wagon(Speaking about the Nippondenso that is).
Why did the original 2007 V6 SR5 2WD come from the factory with 3 Denso in one bank and 3 NGK in the other? Why would the owner’s manual list changing these plugs at 30,000 mi when they are known to last much longer?
At my 43,000 mi Certified purchase they had not been changed because they d/n need changing. I asked if the engine had a problem in the 7yr/75,000 mi Factory Warr and could be related to the plugs, what would happen. They replaced the plugs which I agreed were good (after they listed a few emission matters plugs possibly could be related to).
Was this corrected with plugs later in T4R? Looking in a 2010 Highlander’s 4 Cyl’s service manual I d/n see a listed plug change up to 90,000. I expected to see 90,000 mi or did I miss it or fine print (as inspect)?
At my 43,000 mi Certified purchase they had not been changed because they d/n need changing. I asked if the engine had a problem in the 7yr/75,000 mi Factory Warr and could be related to the plugs, what would happen. They replaced the plugs which I agreed were good (after they listed a few emission matters plugs possibly could be related to).
Was this corrected with plugs later in T4R? Looking in a 2010 Highlander’s 4 Cyl’s service manual I d/n see a listed plug change up to 90,000. I expected to see 90,000 mi or did I miss it or fine print (as inspect)?
toyotatech84
New member
Robs08Runner
New member
I went with Denso Iridiums. It starts, it runs.
Look at BlackWorksInc entry above. The plugs are copper and supposed to be changed every 30K miles. I bought my ’08 4Runner with 88K miles that had the original plugs. It ran great but when I pulled them to put new plugs in the gap was huge. Probably close to twice the normal gap.
I’d recommend changing as soon as possible. I can’t imagine it’s good for the catalytic converters.
I’d recommend changing as soon as possible. I can’t imagine it’s good for the catalytic converters.
ben550
New member
I replaced my 04 v6 spark plugs with these regular Denso plugs.
Amazon.com: Denso (3381) K20HR-U11 Traditional Spark Plug, Pack of 1: Automotive
If you replaced with regular copper plugs, what is the gap?
ben550
New member
I just changed my spark plugs with the OEM Denso's on my '06 2wd v6 - they work great. I noticed that on plug 6 there was a little bit of oil on it. do any of you know what could cause that? everything else is working fine. I really don't want to take it into the dealership for their opinion.
