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New Spark Plugs AC 41-933 Platinum

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  • New Spark Plugs AC 41-933 Platinum

    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
    Attached Files

  • #2
    Heck of a deal right there.

    .
    93 190
    (safe click)

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    • #3
      Someone make me an offer and get these off my workbench. Please!


      Sent from my iPhone using Tapatalk

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      • #4
        Originally posted by Grant777 View Post
        Someone make me an offer and get these off my workbench. Please!


        Sent from my iPhone using Tapatalk
        I'll take them
        2010 X-15
        SOLD 1994 205
        2011 Pathfinder
        2016 Ford Flex
        3 kids, a wife, and a boat dog
        1 kid in college

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        • #5
          Ok - I'll DM you.

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          • #6
            Boats have converters?

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            • #7
              Originally posted by roadster02 View Post
              Boats have converters?
              Yes its within the exhaust manifolds called etxcat from Indmar as an examplehttps://www.indmar.com/indmar-introd...board-engines/
              2010 X-15
              SOLD 1994 205
              2011 Pathfinder
              2016 Ford Flex
              3 kids, a wife, and a boat dog
              1 kid in college

              Comment


              • #8
                spOOky takes them! Sold.

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                • #9
                  Had no idea. What WILL the EPA screw up next?



                  Originally posted by sp00ky View Post
                  Yes its within the exhaust manifolds called etxcat from Indmar as an examplehttps://www.indmar.com/indmar-introd...board-engines/

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                  • #10
                    Originally posted by roadster02 View Post
                    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!


                    Sent from my iPhone using Tapatalk

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                    • #11
                      Yeah, yeah, yeah, sell it down the river, and I have some land in the Florida swamps for sale.
                      Last edited by roadster02; 10-08-2021, 08:39 PM.

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                      • #12
                        ​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.
                        Attached Files

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                        • #13
                          Originally posted by bump32 View Post
                          ​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
                          Ski in snow, ski in water, and always have fun!

                          2008 Prostar 214 MCX
                          1995 Prostar 190 "Evil Minion"
                          Previous 93 Prostar 190 1.5:1 GT40

                          "Left Foot Forward and preferring girls."
                          "Do you have Flake on that boat?"

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                          • #14
                            Originally posted by 93Prostar190 View Post

                            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.
                            Click image for larger version

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                            • #15
                              Looks like one is platinum and one is iridium.

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