Jbunz

Just wondering if anyone has changed their spark plug? Is there ngk for g37? Juss wondering thanks

blnewt

iTrader: (13)

NGK, Denso, Bosch all make G37 plugs, the Nissan OEM plugs are just fine unless you're running higher HP and need a different heat range. The OEMs are Denso Iridium 3457 plugs
Here's the OEM part #
https://discountinfinitiparts.com/pa...t=Spark%20plug

G37Sam

The stock ones.

JSolo

iTrader: (14)

^^Agreed! Unless you're an engineer and truly understand spark plug design and how it affects engine operation, stick with stock.

telcoman

As others have mentioned replace your plugs with the OEM stock plugs

Here are my stock plugs from my previous 06 G35 with 106k miles on them



The stock replacement plugs were still on the vehicle when I traded it in with 171796 miles

Telcoman

Jbunz

Oh okay I will so anyways where can I get the oem spark plug and if I get them from the dealership is gonna be expensive? What kind of ngk do u used? Thanks

Thirty_Seven

iTrader: (5)

I ordered them from Rock Auto. It was the best price I found.

Jbunz

Thanks but which one did u get the platinum or the iridium

xnick101

iTrader: (3)

I didn't want to start a new thread for this dumb question but is the Denso FXE24HR11 pre gapped for our cars? Or do I have to buy the OEM one's that are in the Nissan box?

m3clubracer

Denso or NGK

xnick101

iTrader: (3)

The denso's. Are they pregapped for our motors?

Kris9884

iTrader: (3)

I had the same question and searched everywhere and none of the manufacturers said they were pre-gapped. But if you search for a pre-gapped plug they all make sure to mention it so I'm going to go out on a limb and say no, you have to gap them to spec. Which is .044 with about .02 play room.

G37sGraphite

iTrader: (9)

Just read up on it...anyone can do it. You would want to measure and confirm them even if they are "pregapped". Most are not....
How to Gap a Spark Plug: 8 Steps (with Pictures) - wikiHow

xnick101

iTrader: (3)

http://www.ebay.com/itm/252302835438?_trksid=p2060353.m2763.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Does anyone know if these are pre gapped since they are directly from nissan?

JSolo

iTrader: (14)

Even pregapped plugs should be carefully checked and adjusted if needed.