Spark Plugs

[BC18471]

Hey,

Sorry, not sure if this has been answered elsewhere, but I seem to be missing the search function on this page. I just bought an 04 tige 22i and am looking to replace the spark plus as well as the cap. I pulled a plug and it was the AC 41-932, which in researching has since been discontinued. Spark plug cross reference lists a lot of containers, but I am partial to NKG. Will any of these work...or has anyone had better luck with a specific plug?

Also, I have had 0 luck in finding the cap that would need to go on this motor if anyone knows that.


Thanks in advance,
Brian

[lee]

What engine do you have?

[BC18471]

Sorry, its the MerCruiser MPI 315hp

[BC18471]

Also, it is stored in another state, so unfortunately I can't go pull the parts to get numbers. I am trying to get the info because I want to install new parts when I go back out next weekend.

Thanks again!

[lee]

https://marineenginedepot.com/tune-up-kit-with-cap-2

[TeamAllen]

From what I could see. It looks like the plug was superseded by AC Delco 41-933
I am a NGK fanboy myself. AC 41-932 crosses over to NGK PTR5D-13 (6644)
AC 41-933 crosses over to PTR4B15 (5146). I would probably chose the 6644

[BC18471]

Great, thanks! Do you have any input on the ngk plugs to replace the 41-932's or would any work?

[lee]

We use AC plugs in a GM engine. I think the new ones are 41-993.

[lee]

2004 might not have the flat cap what is the engine serial number?

[BC18471]

Looking at an invoice looks like it might be 38193

[BC18471]

And sorry, this is a 335 motor, not 315

[lee]

Is it a Marine Power? What color is the engine, black or silver?

[BC18471]

Don't recall color and its in storage. But its a marine power engine, model s5.7vsk i. Serial is as above.