Does anyone know where I might find a plus 20 cam (530803P020) for my O-300? We are in the midst of engine overhaul and cam was rejected. If I can't find the cam I will be forced to either get a new case or pay to have my case repaired from P020 bore to original. It's starting to look like the repair might actually be less expensive and quite a bit faster than getting a cam that fits.
Thank you for your input,
Mark Hoover
Chico, CA
O-300 Plus 20 camshaft
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
- GAHorn
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Re: O-300 Plus 20 camshaft
Textron (Cessna), Continental, and AirParts ( https://airparts.aero/powerplant/cam-sh ... -camshaft/ ) all claim to have it “in-stock”….
AirParts prices it at $650.
AirParts prices it at $650.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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- Joined: Mon Feb 06, 2023 4:37 am
Re: O-300 Plus 20 camshaft
GAHorn,
Not quite. The plus 20 part is the kicker. That's not a plus 20 cam. I did manage to find a shop that had one one the shelf tho!
Thanks for trying!
Not quite. The plus 20 part is the kicker. That's not a plus 20 cam. I did manage to find a shop that had one one the shelf tho!
Thanks for trying!
- GAHorn
- Posts: 21289
- Joined: Fri Apr 12, 2002 8:45 pm
Re: O-300 Plus 20 camshaft
You likely failed to scroll down the page to the +20 cam: Alternate Part Number: 530803P020, 643068MDHoover wrote:GAHorn,
Not quite. The plus 20 part is the kicker. That's not a plus 20 cam. I did manage to find a shop that had one one the shelf tho!
Thanks for trying!
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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