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525efi fuel filters

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Old 05-17-2023 | 08:59 PM
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Originally Posted by Ed
common filter, that with basic research & cross reference, can be found all over the place on the internet for ten bucks each shipped. its a gm/ac-delco filter.
I tried that years back. AC Delco makes one that looks exactly the same on the outside but does not have the inverted flare fittings. Can’t find that part number at the moment.

If there’s an actual cross-reference part, we’d all love to know.
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Old 05-17-2023 | 11:27 PM
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Yep those inverted flare fittings are definitely hard to find. Took it to NAPA and they didn't have any with them. I'm just hoping this ebay one isn't somebody trying to make a quick buck selling something that looks close lol.
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Old 05-18-2023 | 05:48 AM
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What always got me about these motors is why the extra filter, other high HP don't have one and do just fine with standard 10 micron canister
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Old 05-18-2023 | 06:06 AM
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Anybody try weatherhead adapters from inverted flare, to say 16mm x 1.5 ? Many gm fuel injected vehicles use 16mm x 1.5 inline filters.
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Old 05-18-2023 | 09:19 AM
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Speed and Custom Marine out of Tallahassee area has a few, buy a lot from them. Quick shipping

Last edited by dmaxximus; 05-18-2023 at 09:27 AM. Reason: Wrong Info
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Old 05-02-2024 | 01:44 PM
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Reviving this thread. Another year and the same issue. There has to be an alternative setup instead of using these filters. They are literally out of stock everywhere. I've got two on order from two different places and both are back ordered. This is nuts.
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Old 05-02-2024 | 01:56 PM
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Is this the same filter ? Wix 33481

https://www.partsvu.com/fuel-filter-...RoCmkoQAvD_BwE
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Old 05-02-2024 | 02:17 PM
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I wish it was. They look the same but Mercury made theirs with inverted threads on the inside. I'm trying to come up with an aftermarket filter that can use the stock fuel line fittings.
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Old 05-02-2024 | 02:53 PM
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the link I posted doesn't say they are bo'd
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Old 05-02-2024 | 03:57 PM
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Yeah they are on backorder there too. I have one ordered from there and Hardin/CP Performance. I saw on a Corvette message board that a guy used fittings to be able to run the auto type without the reverse flares. I'm picking up the fittings on my way home from work and will try it out tomorrow. Fittings are Weatherhead 1446.
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