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Kevin Hickey
04-07-2009, 12:00 PM
I have a 2005 197 with Indmar 310 motor. Original spark plugs were AC 41-932. These have been discontinued. I have been told that they were superseded by AC 41-993's. These come gapped at .06. Are these the correct plugs for my boat?

TMCNo1
04-07-2009, 12:06 PM
I have a 2005 197 with Indmar 310 motor. Original spark plugs were AC 41-932. These have been discontinued. I have been told that they were superseded by AC 41-993's. These come gapped at .06. Are these the correct plugs for my boat?


Yes, I would think so, http://www.skidim.com/prodinfo.asp?number=RP030010
AC DELCO PLUG SET, PLATINUM (AC41-993) (http://www.skidim.com/prodinfo.asp?number=RP030010) 5.0 MPI and 5.7 Excal, Indmar 2002+ 5.7L engines.
Superceeds AC41-932 Also replaces MR43LTS for GM Vortec engines if you want Platinum. Plug gap .060
(Price includes 8 plugs).
These last 300-500 hours, clean and inspect anually.
Not recommended for carbureted engines