View Full Version : Replacing spark plugs.
Kidder522
06-13-2018, 07:11 PM
Hey fellas.
Just wondering If anyone out there has a spark plug number for an 07 lsv with the assault 325 mpi engine. I have had the boat for 3 years so I am not sure when the were replaced last. Boat runs fine but just thinking about replacing them.
Thoughts?
Richard.
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MJHSupra
06-13-2018, 10:07 PM
Cat - MR43LTS - 0.045
No Cat - 41-993 or 41-101 - 0.04
From Indmar chart online
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MJHSupra
06-13-2018, 10:13 PM
https://r.tapatalk.com/shareLink?url=https%3A%2F%2Fforum%2Emoomba%2Ecom%2 Fshowthread%2Ephp%3Ft%3D29222&share_tid=29222&share_fid=27865&share_type=t
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Kidder522
06-13-2018, 10:31 PM
Ok. I’m confused. The first one and the second on conflict with the CAT numbers. My engine is non cat. Or did I miss read that?
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VA LSV
06-14-2018, 08:08 AM
MR43LTS are standard plugs and 41-993 are iridium plugs for cat engines. AC Delco dropped their platinum plugs. I run Denso 4511 PT16TT Platinum TT in my 325 MPI. Good plug for a reasonable price.
MJHSupra
06-14-2018, 10:20 PM
Yes. I did not know the number that was dropped.
I found this same chart on the Supra and Mastercraft forum
https://r.tapatalk.com/shareLink?url=http%3A%2F%2Fwww%2Emastercraft%2Ecom %2Fteamtalk%2Fshowthread%2Ephp%3Ft%3D68951&share_tid=68951&share_fid=25886&share_type=t
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Kidder522
06-14-2018, 11:00 PM
thanks for the information. Looking at replacing them this summer.
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