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Old 03-29-2018, 10:14 PM
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Default GF440 fuel filter substitutes?

I have been researching the acdelco gf440 fuel filters and it seems these are getting rare. Are there any modern filters that can be used in place of these without issue?

Theres plenty gf440s on ebay, but curious if there is a safe, cheaper alternative or if it would be a safer bet just paying the 60 ish dollars for the gf440.
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Old 03-29-2018, 10:24 PM
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The only reason why they bring the price that they do is because they say "AC" on them. The "purists" have to have that "AC" on their GM products. Cross the number over to the NAPA Filters number and you will see the price drop significantly. I have the catalogs to do it at home, but currently in Phoenix. Will be back home on Saturday and can cross it over then. The NAPA equivalent is/was made by WIX Filters, which is as good or better filter anyway.
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Old 03-29-2018, 10:41 PM
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Awesome, my mom works at NAPA so i will give her a call tomorrow
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Old 03-29-2018, 11:20 PM
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May not show up any more in current NAPA cataloging. If not, it definitely will cross in my old catalogs.
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Old 03-29-2018, 11:33 PM
Paul Steinberg Paul Steinberg is offline
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I feel your pain, since I have the same issue with finding fuel filters for my 1964 Corvair Spyders.

I looked it up on the GF440 filter on the Wix website, and it said the following.....

"This is a valid competitive part number and there is no replacement at this time."

Also, doing some research I found this information for the 1968 Cadillac fuel filter.

Quote:
With Air Conditioning - AC type GF440, GM #5651533
Without Air Conditioning - AC type GF439, GM #5651532
A few other thoughts from the Cadillac LaSalle website......

Quote:
The alternative is to install a 69 fuel pump and re-plumb the fuel lines. The filter for that is a GF 441 and cost $1.30 at Rock Auto.
Quote:
Another simple alternative is to just use a generic fuel filter with the vapor return line. You can get them at your local parts store. You will have to install them with clamps and short pieces of rubber fuel line, but no big deal, just slide the threaded parts up on the metal line out of the way of the clamps. I use the metal-cased filters, not the plastic ones. If they don't have the generic filters with the vapor line in the correct position, then just get a 80's Chrysler fuel filter for the carb engines. Works fine. Tim
http://forums.cadillaclasalleclub.or...topic=115917.0
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Old 03-30-2018, 12:01 AM
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Just because it is obsolete and not currently in production, doesn't mean that it is not available. That is why old catalogs are such as valuable resource. With a "vintage" NAPA Filters catalog, you can cross the GF440 part number to most every fuel filter that was being manufactured at the time that the catalog was printed.

It would be pretty foolish to modify the car's fuel system vs. putting a minimal amount of effort into finding the correct filter.
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Old 03-30-2018, 12:03 AM
Walter Suiter Walter Suiter is offline
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Looks like under 10 bucks
https://www.stockwiseauto.com/acdelco-gf440

If that's the right filter you can get rich selling them on ebay
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Old 03-30-2018, 12:08 AM
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You will notice that there are a quantity of "0" in-stock on their site.
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Old 03-30-2018, 09:36 AM
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Default

Thanks for the info. I had seen the forum post on the cadillac/lasalle forum. Thats definitely an option, I'd like to do as little modifying as I can.

So as for the A/C variant. I am curious why is there a difference between fuel filters for cars with air conditioning and without. Wouldnt the fuel filter function the same regardless of the presence of air conditioning?

Or is the only real difference the part number?
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Old 03-30-2018, 10:44 AM
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The AC one has a return line on it. The none AC cars did not.i had even a worse case when i was looking or one there were none available at all. So i blew the filter element out with air and added that in line one as my only option at the time.
If it was me i would bite that one, replace it with the new one and still add the inline to protect and give me a inexpensive way to change the filter.
That way the system is not adulterer and you would most likely never have to chang it again.
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