2007 EZ-GO ST - Robin EH352 Muffler

WBville07 · 04-02-2021, 10:23 AM

First Post here - Just got a 2007 EZ-GO ST Sport II (Not 100% sure about all that, but ID'd it as best I could) with the Robin Engine EH352. The muffler that is on it currently is rusted through in multiple spots and it looks like the previous owner tried to do some DIY welding on it (not sure if that came before or after the rust). Pretty loud and obnoxious.

My question is, what is the correct part number for the muffler for this engine because I would like to replace it. I can get the P/N from the muffler that's on there currently, but I'm not sure it's the correct part due to the DIY welding looks like they got the wrong muffler and had to modify it to bolt up.

Current muffler P/N : 74829G01

Any help would be appreciated! Thanks!

Also, if there's a pdf for the manual someone can share, that would be great. Other links I've found didn't work.

-WB

JPonLKN · 04-02-2021, 10:57 AM

According to the Parts manual I have with ST II starting in 2006 is 74829G01

WBville07 · 04-02-2021, 04:07 PM

And is that for the Robin engine specifically or the MCI engine? Or does it fit either one? I just don't want to order the wrong part....

Thank you so much for the help!

JPonLKN · 04-02-2021, 04:34 PM

The MCI engine is a Robin Engine. The Robin engine transitioned 2003/2004 from the Pre-MCI to the MCI version. MCI simply stands for motor cost investigation, and resulted in several changes. The MCI engines seem to start easier, rev a bit quicker, and reportedly have better fuel efficiency; however, the oiling at the head relies on indirect flow to the cam bearings, and can be problematic as the cam locks up in the head if you loose oil flow. Not something that happens often though, unless you replace the oil pump o-ring with a non EZGO unit.

Short answer, yes, that is the muffler for the post 2004 295cc and 350cc Robin MCI twin engines and the number was taken out of the EZGO Parts Service Manual.

Now, if you order a non-EZGO aftermarket part, I can't guarantee it will fit. You need to do your own research to verify what you buy is the right part...I've never purchased one separate from a cart, so can't speak to the fitment of units from various vendors.

WBville07 · 04-03-2021, 08:31 AM

Wow, thank you! I was horribly misinformed. I really appreciate the help and information, it will be super useful moving forward. Thanks again!

04-02-2021, 10:23 AM	#1
WBville07 Not Yet Wild Join Date: Apr 2021 Location: TX Posts: 4	2007 EZ-GO ST - Robin EH352 Muffler First Post here - Just got a 2007 EZ-GO ST Sport II (Not 100% sure about all that, but ID'd it as best I could) with the Robin Engine EH352. The muffler that is on it currently is rusted through in multiple spots and it looks like the previous owner tried to do some DIY welding on it (not sure if that came before or after the rust). Pretty loud and obnoxious. My question is, what is the correct part number for the muffler for this engine because I would like to replace it. I can get the P/N from the muffler that's on there currently, but I'm not sure it's the correct part due to the DIY welding looks like they got the wrong muffler and had to modify it to bolt up. Current muffler P/N : 74829G01 Any help would be appreciated! Thanks! Also, if there's a pdf for the manual someone can share, that would be great. Other links I've found didn't work. -WB

04-02-2021, 10:57 AM	#2
JPonLKN Gone Wild Join Date: Jul 2020 Location: NC Posts: 774	Re: 2007 EZ-GO ST - Robin EH352 Muffler According to the Parts manual I have with ST II starting in 2006 is 74829G01

04-02-2021, 04:07 PM	#3
WBville07 Not Yet Wild Join Date: Apr 2021 Location: TX Posts: 4	Re: 2007 EZ-GO ST - Robin EH352 Muffler And is that for the Robin engine specifically or the MCI engine? Or does it fit either one? I just don't want to order the wrong part.... Thank you so much for the help!

04-02-2021, 04:34 PM	#4
JPonLKN Gone Wild Join Date: Jul 2020 Location: NC Posts: 774	Re: 2007 EZ-GO ST - Robin EH352 Muffler The MCI engine is a Robin Engine. The Robin engine transitioned 2003/2004 from the Pre-MCI to the MCI version. MCI simply stands for motor cost investigation, and resulted in several changes. The MCI engines seem to start easier, rev a bit quicker, and reportedly have better fuel efficiency; however, the oiling at the head relies on indirect flow to the cam bearings, and can be problematic as the cam locks up in the head if you loose oil flow. Not something that happens often though, unless you replace the oil pump o-ring with a non EZGO unit. Short answer, yes, that is the muffler for the post 2004 295cc and 350cc Robin MCI twin engines and the number was taken out of the EZGO Parts Service Manual. Now, if you order a non-EZGO aftermarket part, I can't guarantee it will fit. You need to do your own research to verify what you buy is the right part...I've never purchased one separate from a cart, so can't speak to the fitment of units from various vendors.

04-03-2021, 08:31 AM	#5
WBville07 Not Yet Wild Join Date: Apr 2021 Location: TX Posts: 4	Re: 2007 EZ-GO ST - Robin EH352 Muffler Wow, thank you! I was horribly misinformed. I really appreciate the help and information, it will be super useful moving forward. Thanks again!

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