19-03-13, 08:55 PM
Short answer No. They will not fit as there is an unthreaded shoulder on the CR8EHIX9 between the sealing washer and the threads, the CR8EIX do not have the shoulder. See Pictures below
CR8EHIX9
![[Image: CR8EHIX9.jpg]](http://www.sparkplugauto.com/images/detailed/1/CR8EHIX9.jpg)
CRE8IX
![[Image: CR8EIX.jpg]](http://www.sparkplugauto.com/images/detailed/1/CR8EIX.jpg)
CR8EHIX9
![[Image: CR8EHIX9.jpg]](http://www.sparkplugauto.com/images/detailed/1/CR8EHIX9.jpg)
CRE8IX
![[Image: CR8EIX.jpg]](http://www.sparkplugauto.com/images/detailed/1/CR8EIX.jpg)