spark plug question

[cookiesareyummy]

Mercruiser OM674607
I am changing the spark plugs, I took out of the engine Denso PT16EPR-13. These are some strange plugs that I have never seen before. The top of the carb cover says to use AC43LTS which would cross over to an NGK TR5. The parts catalog says to use 33-816366 which I'm pretty sure is an NGK BPR6EFS. Just wondering what I should use.

 

[Bondo]

Re: spark plug question

The top of the carb cover says to use AC43LTS

Ayuh,... I Always use AC Delcos in Chevy motors, myself...

 

[cookiesareyummy]

Re: spark plug question

I'll use the AC43LTS then?

 

[Bondo]

Re: spark plug question

I'll use the AC43LTS then?

Ayuh,... If it's a Chevy, 'n built after 1996,...

Yes...

 

[cookiesareyummy]

Re: spark plug question

Great thanks for the quick replies, its a 2003 so that is what I'll be using.

 

[tedhrs]

Re: spark plug question

so what would you use in a 1988 merc 350 magnum?

 

[Bt Doctur]

Re: spark plug question

Mr43ts

 

[3.0 merc issues]

Re: spark plug question

what would you use on a mercruiser 3.0 1985

 

[Bondo]

Re: spark plug question

what would you use on a mercruiser 3.0 1985

Ayuh,... AC Delco, MR43T, I believe...

 

[tedhrs]

Re: spark plug question

so using MR43t is the wrong ones for my 350 mag? it's what the guy at Napa gave me.

 

[Don S]

Re: spark plug question

To many people with to many answers to even keep track of who is answering which question.

Why we say start your own thread when you have a question.