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Need Oil Filler Cap and Gasket part number for O-300a
Posted: Sun Mar 11, 2007 7:28 pm
by pdb
Gentlemen:
I lost my oil filler cap in flight yesterday. What a mess. I only lost about 1qt but it looks like 2 gallons when cleaning it up.
Does anyone know the correct part number of the replacement. A friend gave me two:
631754 or 640620-2
but neither seems to turn up in the search engines for the parts suppliers and I don't have a part catalog for the engine.
Thanks
Posted: Mon Mar 12, 2007 1:15 am
by GAHorn
640620-2 is the PN listed in the TCM IPC. Try EnParts in Lancaster, TX for salvage cap. 660 Ferris Rd # 102, Lancaster, TX 75146
(972) 227-0086
(List from Cessna is $100.)
Posted: Mon Mar 12, 2007 1:28 am
by lowNslow
They (P/N 640620-2) are available at Hill Aircraft
http://www.cessnaparts.com/ for the reduced price of $90 .

Seems like a standard part from any old Ford or Chevy.
Posted: Mon Mar 12, 2007 1:53 am
by GAHorn
Karl, should we tell him about the Spruce PN FC-2646 for $8.80 or should we keep that amongst ourselves? (Since I've only heard of it's use for such purpose and not tried it myself and since it claims to be for fuel...)
http://aircraftspruce.com/pdf/2007Indiv ... t07169.pdf
Posted: Mon Mar 12, 2007 3:40 am
by jrenwick
gahorn wrote:Karl, should we tell him about the Spruce PN FC-2646 for $8.80 or should we keep that amongst ourselves? (Since I've only heard of it's use for such purpose and not tried it myself and since it claims to be for fuel...)

This is exactly what I'm using, since I lost my cap last year. Sanded off the black paint, painted it yellow, added some lettering to show the 8 quart capacity, and added a chain. This one looks fine, and won't get lost. (The one I lost looked exactly like it.)
Posted: Mon Mar 12, 2007 3:42 am
by blueldr
If any of you guys know of anyone who has bought one of those $90 plus oil caps, I wish you would send me their name. I am privy to some excellent waterfront property they might be interested in.
Posted: Mon Mar 12, 2007 3:45 am
by blueldr
pdb,
When you get a replacement oil cap, be sure you install it on a sink stopper type chain.
Posted: Mon Mar 12, 2007 5:11 am
by lowNslow
gahorn wrote:Karl, should we tell him about the Spruce PN FC-2646 for $8.80 or should we keep that amongst ourselves? (Since I've only heard of it's use for such purpose and not tried it myself and since it claims to be for fuel...)

Oh no, no, no --- we don't want him to say he heard something like that from this forum.
Posted: Mon Mar 12, 2007 7:29 am
by pdb
You boys are lifesavers. Thank you.
Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Mon Aug 11, 2008 4:50 pm
by Steve Pierce
1 640620-2 1 EA Teledyne Continental Motors CAP-OIL List $104.68 Cost $64.90
Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Tue Aug 12, 2008 1:21 am
by mit
Steve Pierce wrote:1 640620-2 1 EA Teledyne Continental Motors CAP-OIL List $104.68 Cost $64.90
Hey steve this ain't no Cub!

Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Thu Aug 14, 2008 2:48 pm
by Steve Pierce
I must have fallen in the wrong place.

Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Sat Oct 17, 2015 6:02 pm
by jim bell
Jim writes: Called Aircraft Spruce and part number FC - 2646 didn't bring anything up. Will try a couple other venders on Monday.
Thanks or the help.
Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Sat Oct 17, 2015 6:13 pm
by pdb
Re: Need Oil Filler Cap and Gasket part number for O-300a
Posted: Sat Oct 17, 2015 11:52 pm
by blueldr
Pete,
When you get a new cap, rivet a lenght of bathtub stopper chain to it and fasten it to the filler neck with an Adel clamp.
Please be advised that anchoring the cap to the airplane will not make the clean up any easier if you fail to reinstall it after adding oil..