MEP-003a NAPA fuel filter

m16ty

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I'm trying to change out my fuel filters on my 003 with Napa filters. The wiki page list a Napa 3113 fuel filter but when comparing it with the military filter, it's a good 1/4" shorter. Will this work?
 

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RIrvin

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Had this same issue on two MEP's. I was able to cut cork gasket material into shape of large "washer" / gasket to provide spacer to close size gap for NAPA fuel filter.
 

m16ty

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It is spring loaded but I'm unsure if it's enough to make up the difference.
 

m16ty

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After close inspection, a NAPA 3113 will not seal properly without also adding some sort of spacer.

I'm going to edit the wiki page to say as such.
 

1800 Diesel

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After close inspection, a NAPA 3113 will not seal properly without also adding some sort of spacer. I'm going to edit the wiki page to say as such.
It took me awhile to search & locate this thread but I wanted to add a few details that will reinforce m16ty's concerns about the NAPA 3113 filter dimensions. I got an MEP-002A in a few days ago and started doing the standard fuel system maintenance and installed two new NAPA 3113 filters (have two cases of these I need to use up). The unit had Torite #8085s installed but they were in pretty bad shape and the fuel tank had 2" of sludge in it. Right after I installed the filters I had a recollection of this thread so I decided to remove the two NAPA 3113s and do some measuring. (First thing I noticed is that no impression was seen in the lower or upper cork gaskets.)

Measurements of three different brand filters as follows:
(The first value is the filter body height & the second value includes the upper & lower (cork) gasket thicknesses.

BALDWIN PF906-- 3.37" 3.63"
NAPA 3113-- 3.47" 3.72"
TORITE 8085-- 3.64" 3.88"

The Torite filters that I removed had an impression in both upper & lower corks gaskets. I measured the "crushed height" in way of the impressions--it came out between 3.76" & 3.78". In order to safely use the NAPA 3113 filters in my inventory I decided to install an extra cork gasket (they measure 0.125" thick) on the bottom side of the filter. Of interest is that the Baldwin filter comes with an extra cork gasket that's about 0.25" thick so they must know something about the dimensional issue with their filters. (Cheaper to provide an extra cork than building a taller filter housing?)

Using the extra .125" gasket provides a total height of the NAPA filter about 3.85"--much closer to the Torite filter height and enough height to make good contact with the gaskets. I'm actually planning to contact NAPA about this as well as Baldwin since their filters are even shorter than the NAPA.

In the near future I'll locate a source for Fram C1125PL filters which has a published height of 3.813". I don't know if that includes gasket thicknesses or not but at least it's much closer to the Torite filter height and should make good contact top & bottom.
 

Light in the Dark

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Good info for all. I personally use the Fram units, but its nice to know there are other options.
 
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