3.0 liter sparkplug.

G

gabe1

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Hello

I have a 1988 3.0L GM 181 I/L4 mercruiser.

I want to change the sparkplugs on this engine(ac-MR43T) but I can not find them anywhere.

I was told that champion RV15YC4 and NGK BR6FS
are the same?

What sparkplug should I use ?

Thanks
Gabriel
 
Don S

Don S

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Re: 3.0 liter sparkplug.

Either use the BR6FS, or the MR43T plug. Avoid the Champion plugs at all cost.
 
ron7000

ron7000

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Re: 3.0 liter sparkplug.

AC-R43T is equivalent to the AC-MR43T. look for that if you want AC delco.

NGK BR6FS has stock #4323, sometimes the stock # is more easily found.
You can also use NGK v-power plug YR5 stock #7052.
I would recommend the v-power YR5 before the BR6FS, both before the R43T. All are $2 plugs.

The RV15YC4 doesn't cross to a R43T, nor does it cross to a BPR6FS, according to sparkplugs.com. It may be a hotter plug so I would be cautious using it. Champion RV8C is what is equivalent to R43T and BPR6FS.
 
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vipzach

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Re: 3.0 liter sparkplug.

Ron, why do you recommnd the YR5's before the MR43T's? I am just curious
 
ron7000

ron7000

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ron7000

ron7000

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Re: 3.0 liter sparkplug.

for the home.att.net,,,links copy the whole line then paste it in the address box of your web browser. Two are word documents.
 
G

gabe1

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Re: 3.0 liter sparkplug.

Thanks for the help.
Gabrield:)
 
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