Black1990jeep
NAXJA Forum User
- Location
- california
For my 1990 Xj 4.0 liter six, the stock spark plug is a Champion RC9YC But it is not available locally to me, I have been told an AC Delco, Motorcraft, or NKG make suitable plugs for my Jeep.
Which if any is a good alternative to the factory Champion?
I assume a copper plug is fine, or is there a benefit to the fancy platinum plugs, correct?
link to plugs below, This is what I can source tomorrow at OReillys. The Champion I called about and they told me they cant get it, even though it is listed below in the link....
https://www.oreillyauto.com/shop/b/...rk-plug-12874/b14eb31b13d7/1990/jeep/cherokee
Thanks for your spark plug advice!
Which if any is a good alternative to the factory Champion?
I assume a copper plug is fine, or is there a benefit to the fancy platinum plugs, correct?
link to plugs below, This is what I can source tomorrow at OReillys. The Champion I called about and they told me they cant get it, even though it is listed below in the link....
https://www.oreillyauto.com/shop/b/...rk-plug-12874/b14eb31b13d7/1990/jeep/cherokee
Thanks for your spark plug advice!