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chopp
12-09-2012, 09:40 PM
AC Delco 41-101 platinum , gap .040” 1.02mm

Are these the correct spark plugs for a 2011 indmar 350mcx , or are there different models/brands you can use.
also where is the best online shop in the states to buy them from.
regards

93Prostar190
12-10-2012, 03:54 PM
Hi .. For my 2008 MCX the 41-101 was an iridium ac delco plug that you can get at Napa .. Gapped at .060 from the box. I am guessing that is the same for you. You can also get them at your dealer or skidim.com.

The platinum plug works well also .... but I did some reading and our engines have CATS so the Iridium was preferred for higher temp application.

TN X-45
12-10-2012, 04:13 PM
How often do these need to be replaced? 2008 MCX with ~ 350 hours. Thanks!

willyt
12-10-2012, 04:27 PM
Manual says every 300 hours or every 1 or 2 seasons I think. Thanks for the part nums rob - after I burn off all the fogging oil in the spring I'm replacing mine

MattsCraft
12-10-2012, 06:26 PM
I replaced mine at 200 hours along with rotor & cap, old ones were still going strong though. Some will tell you every year, I think that's a bit MCOCD though.

Snipe
12-12-2012, 06:56 AM
How often do these need to be replaced? 2008 MCX with ~ 350 hours. Thanks!
O.K. I almost hate to ask.....When you guys say MCX is that the same as a Mastercraft Vortec MX Plus engine?:confused::confused:

93Prostar190
12-12-2012, 09:56 AM
O.K. I almost hate to ask.....When you guys say MCX is that the same as a Mastercraft Vortec MX Plus engine?:confused::confused:

There is an Indmar 350 HP motor offering that has been in a lot of MC models that has the red intake plenums and so forth ..... it is called the MCX .... here are 2 MCX engines from the Internet ...