Need Oil Filler Cap and Gasket part number for O-300a

pdb · Post by **pdb** » Sun Mar 11, 2007 7:28 pm

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

Post by **GAHorn** » Mon Mar 12, 2007 1:15 am

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.)

lowNslow · Post by **lowNslow** » Mon Mar 12, 2007 1:28 am

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.

Post by **GAHorn** » Mon Mar 12, 2007 1:53 am

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

jrenwick · Post by **jrenwick** » Mon Mar 12, 2007 3:40 am

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.)

blueldr · Post by **blueldr** » Mon Mar 12, 2007 3:42 am

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.

blueldr · Post by **blueldr** » Mon Mar 12, 2007 3:45 am

pdb,

When you get a replacement oil cap, be sure you install it on a sink stopper type chain.

lowNslow · Post by **lowNslow** » Mon Mar 12, 2007 5:11 am

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.

pdb · Post by **pdb** » Mon Mar 12, 2007 7:29 am

You boys are lifesavers. Thank you.

Steve Pierce · Post by **Steve Pierce** » Mon Aug 11, 2008 4:50 pm

1 640620-2 1 EA Teledyne Continental Motors CAP-OIL List $104.68 Cost $64.90

mit · Post by **mit** » Tue Aug 12, 2008 1:21 am

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!

Steve Pierce · Post by **Steve Pierce** » Thu Aug 14, 2008 2:48 pm

I must have fallen in the wrong place.

jim bell · Post by **jim bell** » Sat Oct 17, 2015 6:02 pm

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.

pdb · Post by **pdb** » Sat Oct 17, 2015 6:13 pm

Jim

Bad news. The cap is now up to $9.50.

http://www.aircraftspruce.com/catalog/a ... elcaps.php

blueldr · Post by **blueldr** » Sat Oct 17, 2015 11:52 pm

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..

The International Cessna 170 Association

Need Oil Filler Cap and Gasket part number for O-300a

Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a

Re: Need Oil Filler Cap and Gasket part number for O-300a