After flying my new to me A-36 Bonanza for about 2years, I decided to replaced the Brackett air filter that that was on my aircraft when I bought it. This new Donaldson filter gave me 1 inch more of manifold pressure at takeoff power than the Brackett filter did. I assume that would continue to benefit for climb and cruise. Note: my new Donaldson filter did not come with any form of gasket. I had to fabricate a gasket for the mounting mating surfaces with appropriate material. Other than that it was a direct replacement with no other adapter other than the gasket I had to make.

Scott S Verified Purchase

Donaldson Air Filter P13-7627

Great Product

Flight T Verified Purchase

Donaldson Air Filter P10-6150

Very nice PT6 P3 filter. Much less expensive then the P&W Part.

Alaska A Verified Purchase

Donaldson P3 Compressor Air Filter Element

decent price

Central A Verified Purchase

Donaldson Oil Filter Adapter 204418-156

Quality PMA part, perfect fit replacement part.

Richard F Verified Purchase

Donaldson Oil Filter Adapter 204418-156

Great product - a little high on price

James W Verified Purchase

Donaldson Filter ED04011 M20K

This Donaldson filter for an A36 did not include the foam seal to seal the gasket to the airbox. It is needed and even the instructions reference making sure it is applied to the filter. Whats worse is trying to get a hold of Donaldson customer support via the contact numbers on the Donaldson box. Contacted Spruce Customer Service and waiting on a reply. In the meantime, Im in a holding pattern and the A36 is not in the air. I trust in Spruce to help me with this in a timely manner.

Integrity A Verified Purchase

Donaldson Air Filter P13-7627

Good product

Ronald G Verified Purchase

Donaldson Filter P198281

It fit perfect

Steven B Verified Purchase

Donaldson Air Filter P10-7150

Took forever to get months !!

Mitchell R Verified Purchase

Donaldson Filter ED04011 M20K

Have to replace per AD. Aircraft Spruce is the best!!

Samuel F Verified Purchase

Donaldson Air Filter P10-7172

Good filter

Vi A Verified Purchase

Donaldson Air Filter P10-6150

Machining is high quality and worked as intended. I recommend this product.

Al C Verified Purchase

Donaldson Oil Filter Adapter 204418-156

Great product….I ordered another one

Charles F Verified Purchase

Donaldson Air Filter P10-6150

Air filter was good just have not received complete order or any explanation as to why. Not happy with that !!!

Michael S Verified Purchase

Donaldson Air Filter P617058

First time buying this air filter If taken care of it should last up to 500 hrs 😜

Rod C Verified Purchase

Donaldson Air Filter P10-6150

Fits perfectly.

Much better than Brackett

Bought this air filter on the advice of others and reviews. Well made, fits perfectly in a C-185. Yet to see performance gains, but not really why I bought it. Purchased for easier maintenance.

Correct item timely.

Very well made and a perfect fit. Easy to service/clean. No messy oil.

Purchased this air filter to replace the stock one on a 1972 Cessna 172l. It fit perfectly and will provide cleaner air for the lycoming engine. Great purchase...

I bought the Donaldson P/N 107150 as a replacement for the Air Maze filter P/N 13203 for my Champ 7EC with an O235 lycoming. It is a perfect replacement. I would recommend this product.

Not cheap up front but the ability to clean it at least five times and if it lasts 500 hours as they say, then it will be a bargain

Perfect fit. Very high quality filter and box assembly. Much nicer and cleaner than the Brackett it replaced.

When I moved up to the Donaldson from K&N I noticed a 1/2 of MP increase in the IO550 engine. Much better filter.

Excellent quality air filter. Installed on my Cessna 150M. Appears to have a noticeable power increase. My mixture is not as far out (lean) and the throttle at cruise speed is not as far in at redline. Both signs of higher air flow and power. Beware though, most Cessnas have the Brackett foam air filter, which is an STC. The STC requires the cam lock nuts to be removed from the air box, therefore the push quarter turn pins that come installed on the filter wont work. I had to remove them by pushing out the small pins and use threaded 2 screws with lock nuts. This is why the Challenger filter does not come with the pins installed. I contacted Donaldson about how to install this and got no response, which is why I gave it 4 stars. I also contacted Challenger and they responded right away and told me thats why they sell the pins as an option.

Eric F Verified Purchase

Donaldson Air Filter P10-7172

Very reliable

so far so good. just started installing these on the fleet.

Central A Verified Purchase

Donaldson Oil Filter Adapter 204418-156

The filter is the correct one for my model Mooney however, just 3/16 of an inch too long. The AP could not get it to fit. Maybe a problem with the filter manufacturer. Now I have to foot the shipping cost to send this one back and order another.

Absolutely the worst customer service in the biz. The filters dont always fit and the people at donaldson couldnt care less. Ive wasted a month dealing with them.