Home | Does anyone have any experience with the direct-mount Lycoming oil filter adapter, that replaces the factory oil screen and housing?

>>> BACFest 2025:  Lock Haven, PA (KLHV)

Does anyone have any experience with the direct-mount Lycoming oil filter adapter, that replaces the factory oil screen and housing?

Does anyone have any experience with the direct-mount Lycoming oil filter adapter, that replaces the factory oil screen and housing?

I promised an update to everyone considering the change from the screen to the direct engine mount oil filter adapter. My A&P installed the adapter last week. I haven’t had a chance to fly 6083N since the change. The main body of the adapter is made by Donaldson and it is the one that they sell to Lycoming for their adapter (LW-77852, kit #LW-13743). The engine on my 1969 B23 is a O-360 A2G. According to Bob Steward, Lycoming gives the same P/N for all the engines except the O-235. Per Donaldson the part they manufacture and sell to Lycoming, Cessna Parts Dist. And
API is PMA certified.

Here are the parts needed for the oil filter adapter:

API part# 204418-156 (main body made by Donaldson – only your A&P or FBO can buy the part from API) wholesale price $157.00

Per Bob Steward, the other gaskets and studs (from the parts list below that I got from Lycoming) are all available through Superior as PMA parts.

LW-12795 Gasket x 1

5578426 Gasket x 1 (only if you need the vernatherm gasket replaced)

25C-10-P03 Stud x 1 (My A&P said this stud is slightly larger than the standard stud and was a #!@% to get on – he suggests a regular stud, but I don’t know the part number)

Std-8 Washer x 4

Std-160 Lock Washer x 4

Std-1411 Nut x 1

LW-25-1.00 Bolt x 3 (1/4″-20 USS coarse thread per Bob Steward)

CH-48110-1 Oil Filter x 1
Be sure to stick with the -1 suffix Champion filter. It is a half-inch shorter than the alternate brands.

Shelby Smith had the same API part installed in his Musketeer last year and he reports, “My engine analysis showed a marked improvement.”

I haven’t received the bill from my A&P for parts and labor (when I do I’ll pass the information along). Seeing as how Lycoming wants $475.45 for the kit, with the Donaldson adapter being the most expensive part, I’m assuming I’ll save over $200 in parts! A special thanks to Shelby Smith, his mechanic David, Bob Steward, and all of you that assisted me in finding the parts and lending advice.