Could someone please confirm?

[Extra 300 Driver]

Spark plugs for a 4.2 Cerbera, NGK BKR5EKU or Champion RC9BMC.

And which socket type are these?
Cheers

>> Edited by Extra 300 Driver on Monday 3rd October 11:36

[si-pen]

I'm using NGK at present but don't know the socket size (if that's what you mean) sorry!

[froggie]

Im on the NGK bkr5eku plugs. The plug socket if i remember right, is 16mm or 5/8 to the old biddys (check with the new plugs). BUT YOU NEED A THIN WALLED one.