Mercruiser 3.0 Spark Plugs

cowboy_36618

Cadet
Joined
Mar 11, 2009
Messages
20
Hey yall I just bought a 1996 Bayliner with a 3.0/LX Mercruiser I/0, My question is is there any other Spark Plug that I can run in this Motor besides the AC-MR42LTS, I cant seem to find these around town.... this number I got from the breather cover/top plate. So does anyone know of another Plug I can Use in this Motor, thanks in advance for your help.
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: Mercruiser 3.0 Spark Plugs

AC MR43T...should find them about anywhere.

Rock Auto.com has them cheap....;)
 

cowboy_36618

Cadet
Joined
Mar 11, 2009
Messages
20
Re: Mercruiser 3.0 Spark Plugs

I was meaning around town here in Mobile,Al when I said I cant find them anywhere,LOL, So that AC MR43T, is that a hotter burnig plug or just the same but diffrent number?
 

fat fanny

Lieutenant Commander
Joined
Feb 9, 2006
Messages
1,935
Re: Mercruiser 3.0 Spark Plugs

I was told the a/c/ plug for our engine has been discontinued by a couple of parts dealers the equvelant in a autolite is the 103 seems to be working fine in my girl so far but I'm still a fan of the a/c if you find that the mr43t is it's replacement post back or if you use them and no unusaul condition show post back. (EXCUSE THE SPELLING JUST WOK UP)
 
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