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Aluminum Side Louvers

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AluminumSemi-Gloss Black
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These side louvers let hot air out of your engine compartment - or, if they are installed with the louvered openings facing forward, to bring cool air into the engine compartment, enhancing performance and service life of the engine and under-hood components.

Helicopter owners often mount these over their oil cooler to let cool air in and help reduce operating temperatures.

Complete with do-it-yourself instructions and hardware. Rest a set on your plane, hood or fender- see just how good they look!
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


  • (2) 2-11/16" x 12-1/4" louvers
  • Fit on the side of certain hoods, such as Jeep CJ's, Wrangler YJ's and TJ's
  • Fit on the side of certain fenders
  • Fit as "outboard" units to Louvers, to enhance cooling



Top Gun product! Looks amazing and functions like it should. Highly recommend!!!

Brian G Verified Purchase


March 31, 2022


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Are the black louvers painted, powdercoated, or anodized?

They are powdercoated semi-gloss black.

Q: Do you have part drawings / sketches with dimensions available for these aluminum side louvers?

Yes, we have added the dimensional drawing to the 'Documents' tab of this web page. Please review them there.

Q: How are they mounted?

The kit comes with pull type rivets and a drill bit.

Q: Do they have an STC? Or need one?

No, these are for experimental use. To put onto a certified aircraft you may want to speak with your mechanic to see if a 337 field approval is required.

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