From what I can determine through online research, my '46 pickup has a AC type L-1 oil filter mounted to the intake manifold. I have determined the modern equivalent oil filter cartridge is WIX 51001. However, the gaskets that come with that filter do not fit the top lid on my housing. All I can find is the original gasket was called #130. Does anyone have a modern part number for the gasket?
If nobody can provide the info your asking for, why couldn't you make one. If you have an old inner tube laying around cut a gasket out of it. Measure the width from the inside of the lid. Same for the diameter.
On my '54 truck, I use a Napa Gold filter, part number 1100. The gasket that comes with it measures 5" across on the outside of it, and 4 1/4" across on the inside of it.
The L-1 filter, depending on the type, used three different gaskets. The AC numbers would have been G-130, G-138, G-140 depending on the type of L-1. I think the last element AC had for the L-1 was P-112. If my foggy memory is correct AC would package a couple of different gaskets with the element. I checked my L-1 which I believe uses the G-130 and it measures od 4 3/8. id 3 5/8 approximate. I did check all of my oil filter gaskets and did not have one. If you do find one with an element please post the part numbers.
Picture credited to Patrick Doonan from his article Great Oil Filter Debate, ddautoparts.home.mindspring.com/oilfilter.htm
Thanks for all your replies. In order to identify the filter, I chased down multiple sources of information from different angles and they all led to the same part numbers which I crossed to WIX 51001. From what I can see from the existing plumbing on my motor, oil enters the filter canister from the top right side, fills the outer cavity, flows through the filter to the inner cavity where it returns through a small hole located near the top of the center pipe. The pipe exits the bottom of the canister and returns to the oil pan. This makes sense as it keeps the canister from completely draining back into the oil pan when the engine is stopped. The 51001 filter is tall enough at 5.5" that it encloses the small hole at the top of the center pipe. Shorter filters such as the 51100 at 5" tall would expose the hole above the filter and would allow the oil to bypass the filter element completely. So I think I have the proper filter, but just not the correct gaskets.
The 51001 filter includes two different gaskets but neither of them are large enough in diameter to fit the cover. A correct gasket would need to be approximately 5" O.D. and 4-3/8" I.D. which according to Bob, seems like what is included with the Napa Gold 1100 aka WIX 51100. Perhaps I should visit the auto parts store and compare that gasket with my cover. It would be a shame to have to buy a second filter just to steal the gasket from it. I would sooner make my own.
I am familiar with Patrick Doonan's fine article and that's source of my assumption that I need a #130 gasket. However according to Dave, the G-130 gasket has an O.D. of 4-3/8" which would not work either. Perhaps I need the 138 or 140 variety gasket. In any case, I have been unable to cross any of those numbers to something modern.
So that's where I stand at this point. Again, thanks for the help and I will follow up if I find a good solution.
I have a Fram C4P filter element which comes with two gaskets. One is 5" OD x 4-3/8" ID. It does not fit my filter assy which uses the other gasket which is 4-3/4 OD x 4-3/8 ID. If you can not find or identify the correct gasket locally I would be glad to ship you a couple that are 5"x4-3/8''. Strangely enough the Fram site only references the smaller gasket on their website. I have left a message on the Fram site for the gasket part number. Will advise if I get a response. On the Wix site I came up with a gasket number 15039 that is 4.375x5.125 and fits several elements including the 51100 . Update: I received a reply this AM from Fram that said the gasket is only available with the filter. Also it is now only serviced with the smaller gasket and no record for the larger one. 15039 Packed 5.125 (130)* 4.375 (111)* 0.07 (2)* Principle Application: Principle Application: Cadillac (51-58), GM Cars/Trucks (50-62), Clark, Hercules, John Deere, New Holland, Other
Thank you very much for your offer and the lead on gasket number 15093. Also thanks for contacting Fram about the gasket. I will try to purchase one of these 15093 gaskets and see if it fits my application.
