Trying to determine the correct spark plug for a 1994 MerCruiser 4.3LX. The factory Operation & Maintenance Manual specifies AC-MR44T, Champion RV8C or p/n 33-59571. Servicing dealer installed AC-MR43T. Thanks for any help!
Don, thanks once again for the info! Is there an on-line source for checking things like this, oil filters, fuel filters and other p/n's for the current spec?
Well, you can get your engines SN and go over to the Merc site at http://www.mercurypartsexpress.com/us/
It's about as easy to use and understand as anything else they have done lately.
I tried that before I started this thread because it rejected my engine as being "prior to 2000"! That site has changed since I used it last and maybe I never got to the correct area. I was trying to "ADD ENGINE". Any comments or suggestions
