So i bought some NGK iridiums for my 07 g35 Sedan online a few weeks ago. They supposedly sent me the right ones according to the manufacturer but when i went to put them in they did not fit. 100% positive they where the wrong one's. I got money back and I'm back where i started lol. Does anyone have a correct part # for spark plugs. NGK's preferably but any quality plugs you can recommend would be great 2. Thanks ahead of time!

 

NGK Iridium numbers
Stock Heat #4469
One Step Colder than Stock Heat #6619
NGK Laser Iridium
One Step Colder than Stock Heat #6481
according to NGK website

 

thanks man Ill look into this bro!

 

Also Pulstar by Enerpulse,
Iriduium for the VQ35DE engine only
DG1I

 

I'm just having problems finding any for the HR. The DE is everywhere but... thanks man

 

I went to NGK's website, and only found Laser Iridium for the HR
2007 INFINITI G35 3.5 V6 VQ35HR FI

Spark Plug Part No. Stock No. Plug Gap Photo
OE Laser Iridium DILKAR7B11 ^ 1406 .044 n/a

 

How much mileage do you have that you need to replace plugs?

 

105k miles.

 

You know how much mileage the OP has on his car?

 

lol sorry I thought what was asked was when you should change them

 

i have 60K but when i took them out to replace them they where nasty. I know infinti says they last for 100k or whatever but they are filthy and changing them cant hurt. any ideas

 

...............

 

yeah they were to big and the whole process was more of a hassle than anything! thanks for hittin me back up

 

The Owner's Manual calls for a Denso plug # FXE22HR11. I wasn't aware there was any issue with there being a mid-year sizing change


OEM Denso info:

http://www.globaldenso.com/en/produc...2006/12_1.html

http://shop.advanceautoparts.com/web...content=value4

Personally, I'd use a Denso as soon as I'd use an NGK.

 

Another thing, iIf you're looking at Denso plugs, consider this from an Amazon listing:

Note: Denso partners with other manufacturers to supply the parts your car was originally built with. This product is in a Denso package, however the part may have been manufactured by an independent Denso supplier.

Maybe that accounts for some of the price swings between some of the part listings