2001 5.7 EFI Spark Plugs

[team shadow]

What AC Delco spark plug do you use for a 2001 5.7 L EFI Alpha Gen II motor?
I found the Mercruiser number but no cross reference. I thought it was MR43T but I'm also seeing MR43LTS listed. Mercruiser cross reference to NGK is BPR6EFS which doesn't seem to cross reference to either one of these plugs.

 

[team shadow]

Re: 2001 5.7 EFI Spark Plugs

I think I found the answer on the NGK site, other spark plug sites kept cross referencing other numbers.

Manufacturer Manufacturer's Part No NGK Part No NGK Stock No
AC DELCO MR43LTS BPR6EFS 3623

http://www.ngkpartfinder.co.uk/cros...rt=MR43LTS&type=SPARK PLUGS&manufact=AC DELCO

 

[Don S]

Re: 2001 5.7 EFI Spark Plugs

There is a 99.9% chance it's the MR43LTS plug.
To be sure, what is your engine serial number. Year of your boat is mostly useless.

 

[team shadow]

Re: 2001 5.7 EFI Spark Plugs

Mercruiser number I believe is 816336.
Serial # is 0M024994