• J3-Cub.com is the largest community of J3-Cub pilots, owners and enthusiasts. With over 1000 active members, we have fostered a vibrant community and extensive knowledge base. J3-Cub.com hosts a library of over 13 years of technical discussions, J3 data, tutorials, plane builds, guides, technical manuals and more. J3-Cub.com also hosts an extensive library of J3-Cub photos.

    Access to the J3-Cub.com community is by subscription only. Membership is only $49.99/year or $6.99/month to gain access to this community and extensive unmatched library of knowledge.

    Click Here to Become a Subscribing Member

Challenger Air Filter/K%N

Rene St. Julien

New Member
Feb 25, 2005
Reaction score
In aircraft Spruce under aircraft air filters is a company called Challenger and they are built by K&N air filters. The Brackett BA- 4106 that all of us use or the paper ones are not as efficient or as safe. The K&N which is made to fit the 65/75/85/90/0200 continental engine is a direct replacement and is a metalized box identical to the Brackett air filter with the same mounting holes. It flows about 40% more and is totally reuseable with cleaning. The brackett has an AD on it for failing and shredding into the carb. Rene
It cost $89 and would require a field approval. But makes a big difference. Check your Bracket foam filter for deterioration by pinching it.

Aircraft Spruce part # 08-00843
Challenger part # CP-1150
replaces Brackett BA-4106[/b]

Latest posts