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O-ring for 575sci

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Old 03-06-2023, 05:06 PM
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Default O-ring for 575sci

Guys I am putting together my list of gaskets I need for my supercharger swap in the spring (575sci stock blower to TBS 575 replacement) but noticed that the supercharger oring is no longer made. 25-844473. Ebay has it for $60 which seems extreme. Anybody have another source ?



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Old 03-06-2023, 05:19 PM
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Call McMastercarr and give them the dimensions see if they can match it.........https://www.mcmaster.com/products/o-rings/

(10.975 x .210)

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Old 03-06-2023, 05:24 PM
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Is this it ? (I don’t know myself)
https://www.holley.com/products/engi.../parts/6904WIN
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Old 03-06-2023, 07:16 PM
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just use a thin bead of rtv.
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Old 03-06-2023, 10:21 PM
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Originally Posted by sutphen 30
just use a thin bead of rtv.
“I use that schit on everything”

ultra black actually.
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Old 03-07-2023, 07:08 AM
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Originally Posted by F-2 Speedy
Call McMastercarr and give them the dimensions see if they can match it.........https://www.mcmaster.com/products/o-rings/

(10.975 x .210)

thanks ill give them a call.
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Old 03-26-2023, 07:17 AM
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Originally Posted by SB;[url=tel:4861175
4861175[/url]]Is this it ? (I don’t know myself)
https://www.holley.com/products/engi.../parts/6904WIN

I ended up picking this up for $17 figured it was worth checking out for the price. Turns out it is what I needed, leave it to mercury to mark parts WAY up!
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