Iridium spark plug - longer thread

[komichal]

Hi guys,
so far I have been using "normal" NGK BKR5EYA but I wanted to try some Iridium plugs. Local store recommended me Denso IKH16TT.
Now I am comparing them against each other and the Denso has considerably longer thread part... the rest ("above the nut") seems identical. Check the picture...

I must say I did not have the balls to put the longer plug in. Any experience with it please? Do I need to ask Denso directly to be 100 per cent sure?

My Yaris 2007 uses 2SZFE engine - 1.3 with 64kW.

Thank you!

http://oi66.tinypic.com/34rax5e.jpg

[ex-x-fire]

Don't put that in, its the wrong plug.

[ex-x-fire]

I like to go to rockauto site just to search part numbers, you could check that out there.

[Hoagie]

That’s definitely not right. Don’t damage your engine with that. It looks like that goes in a truck engine. You need IK16TT. That’s what I put in mine and they’re good plugs.

[komichal]

Yep, the store already confirmed the mistake on their end and they will change the plugs for IK16TT. Thanks for your quick response guys.