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THERMOS STYLE PRESSURE FUEL CAPS

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Overview

Pressure fuel caps are recommended for aerobatic installations. These caps are made with Buna-Nitrile gaskets for fuel resistance. These caps are non-vented for gravity fuel systems. It is highly recommended that a #40 (3/32") drill is used to drill a vent hole through the lower base plate and stud assembly using a drill press.

The dimension referenced on these pressure fuel caps is the OD of the rubber grommet around the neck (base).
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Reviews

Got these just for the rubber parts, which worked perfectly on my Siai-Marchetti SF 260 fuel caps. Its too bad they dont sell only the rubber because I just threw the metal pieces away.

Peter
November 10, 2017

Bought this to replace the last one which was 20 years old. Wish they just sold the insert, but it does whats on the tin.

Jpr
March 31, 2017

the snap tops are to tall. wont fit mooney M20C. wing fuel cap covers cant close.

Roger A
September 15, 2020

Q&A

Q: What dimension is referenced - the rubber grommet outside diameter or the top metal plate?

The dimension referenced on these pressure fuel caps is the OD of the rubber grommet around the neck (base).

Q: What I.D. are these caps meant to fit? The last explanation was a little vague.

The measurement is the estimated grommet O.D., so the measurement listed would be the I.D. of the neck it would be used on.

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