New Spark Plugs AC 41-933 Platinum

[Grant777]

Hey there,

I have a set of 8 brand new, boxed, platinum AC Delco 41-933 for a MCX 5.7l with catalytic convertor. I have an older boat without the CATS that use a different plug. I was hoping to sell these to a member at a discount. Call it $35 for the set shipped USPS to the lower 48?

Let me know - Grant

[waterlogged882]

Heck of a deal right there.

.

[Grant777]

Someone make me an offer and get these off my workbench. Please!


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[sp00ky]

Someone make me an offer and get these off my workbench. Please!


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I'll take them

[Grant777]

Ok - I'll DM you.

[roadster02]

Boats have converters?

[sp00ky]

Boats have converters?

Yes its within the exhaust manifolds called etxcat from Indmar as an examplehttps://www.indmar.com/indmar-introd...board-engines/

[Grant777]

spOOky takes them! Sold.

[roadster02]

Had no idea. What WILL the EPA screw up next?

Yes its within the exhaust manifolds called etxcat from Indmar as an examplehttps://www.indmar.com/indmar-introd...board-engines/

[Grant777]

Had no idea. What WILL the EPA screw up next?

This is not new. Been on the Indmar from 2007 if I’m not mistaken. Definitely on the 2008. Saving the planet and our waterways is a noble cause!


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[roadster02]

Yeah, yeah, yeah, sell it down the river, and I have some land in the Florida swamps for sale.

[bump32]

I know these are sold but question from a noob...
I replaced my spark plugs in my 5.7 MCX with the big green catalytic converters with these AC 41-993 plugs.
Picture shows the new ones & the old ones with the same part number. BUT the tips look different. New ones have a skinny electrode and the old ones look thicker. Is this something to be concerned about???
Thanks in advance.

[93Prostar190]

I know these are sold but question from a noob...
I replaced my spark plugs in my 5.7 MCX with the big green catalytic converters with these AC 41-993 plugs.
Picture shows the new ones & the old ones with the same part number. BUT the tips look different. New ones have a skinny electrode and the old ones look thicker. Is this something to be concerned about???
Thanks in advance.

Not 100% sure but my theory is the prior ones were not the exact correct plugs, the new ones look correct and match what I put into my 2008 MCX with CATS Prostar 214

[bump32]

Not 100% sure but my theory is the prior ones were not the exact correct plugs, the new ones look correct and match what I put into my 2008 MCX with CATS Prostar 214

Thanks... Yeah I can't figure out why they are different? Old ones have 41-993 & 12607234 right on the side.
But if I have the right ones in now... that's what counts.

[lakedrum03]

Looks like one is platinum and one is iridium.