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Part# 15-05826
MFR Model# 8035339


Universal In Line Fuel Filter

In-line style universal fuel filter replaces any 1/4", 5/16" or 3/8" filter. Protects all carbureted engines. Clear body permits visual inspection.

NOTE: For use in carbureted gasoline engines only.
DO NOT use in fuel injected engines.

Note: Micron size information not available on this filter.


  • Length: 3-3/8"
  • Thread Size: 1/8" NPT


I have used this these for years on everything from cars to motorcycles and aircraft.

Travis E
June 19, 2018

Thought of sharing - Less than 20hours on this filter and I got mogas from a local esso gas station during a cross country flight. The filter clogged resulting in power loss on second takeoff. Filter looked clean visually but when taken out, I couldnt even blow through it. Looks like the ethanol in fuel melted and blocked the filter mesh. Switching to bronze filters for now.

August 31, 2018


Q: Can the filter element, and the plastic fittings withstand mogas with ethanol 10%?

The filter can be used with auto fuel, but there is no information that has a limit on the ethanol content in the auto fuel. We have yet to have any reported problems when using this filter. It is for experimental only.

Q: P/n 1505826. -What fitting size fits into the end of this fuel filter? Is the screen element metal, plastic or paper?

The unit has female 1/8-NPT on each end to thread in the fittings. The screen frame looks to be plastic, but the screen itself looks to be a fabric mesh. The package does not identify the material of the filter.

Q: Is the external tube glass or plastic on this universal in-line fuel filter? Part # 15-05826

The external tube on this filter is glass.

Q: Can this filter be used firewall forward?

This universal in-line filter is for experimental use only and is not rated for firewall forward applications.

Q: What is the total length of this universal fuel filter including the 5/16 fittings?

The total length of this filter is 3-3/8".

Q: Part # 15-05826. Are the female ends truly 1/8 NPT? The ones sold at auto parts are 3/8-24 (not NPT).

Yes. They are 1/8 NPT.

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