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S4 OMP on S3?

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Old Mar 14, 2025 | 12:27 AM
  #1  
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S4 OMP on S3?

Hi all,

Recently removed my S3 OMP from my car due to some issues with the connecting rod and some missing parts. I was wondering if an S4 OMP would bolt up the same way, as well as the connecting arm, to the S3 intake manifold. The OMPs look mostly the same and I believe that the part numbers are similar for the connecting rods... Only reason why I am asking is because I am having some issues finding parts for the S3 OMP whereas the S4 OMP parts are pretty easy to find.
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Old Mar 14, 2025 | 08:36 AM
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From: https://www2.mazda.com/en/100th/
S3 and S4 NA use the same pump, same part number, so you're good to go
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Old Mar 14, 2025 | 11:49 AM
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my thoughts was they were different. so if the same, must be a gsl-se.
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Old Mar 14, 2025 | 12:43 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by rxtasy3
my thoughts was they were different. so if the same, must be a gsl-se.
oh yeah, i should add that. the GSL-SE and the S4 NA metering pump is the same
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Old Mar 15, 2025 | 03:15 PM
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I do have the GSL-SE, but I am moreso wondering if the linkages are the same.

They seem to have the same part number in the parts catalog, but they link to different parts. My OMP linkage is bent and finding a new one is nigh impossible due to the lack of partouts in my area.
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Old Mar 31, 2025 | 08:44 PM
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Straighten it out? It bends fairly easily, it's basically a thick coat hanger.
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Old Mar 31, 2025 | 11:10 PM
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Originally Posted by peejay
Straighten it out? It bends fairly easily, it's basically a thick coat hanger.
lol. of which i have used in yrs past.
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