Oil pan plug washers.

[Dusty Dude]

Can someone recommend a sealing washer for a 1/2-20 oil pan plug in a steel pan that won't leak. I've tried plastic, nylon and copper and they all drip. The sealing surface on the pan is fine and so is the plug. I've been looking at the steel/rubber ones but would like some input before I waste any more time and cash.
Thanks All.

 

[khryslerkid]

Here ya go Dude

What type of oil pan drain plug gasket is best

 

[tonysrt]

Try teflon tape on the threads of the plug.

 

[dadsbee]

AN900-xx crush washer. XX being the ID diameter in 16ths. So an AN900-10 has an ID of 10/16ths or 5/8ths.

 

[JonR]

My Slant 6 pan was always dripping ever so slightly when it had a copper crush washer on. The last time I had it out I put on a softish rubber washer that was maybe 1/8" thick and squashable. That seemed to do the trick. I just found it in my hardware box.

 

[gkent]

copper and reef the sucker down tight

 

[MoparLeo]

If the mating surfaces are really flat than the problem has to be the plug to pan thread fit. If this s a pan that has seen a lot of oil changes than the pan threads may be worn. Solution is to either the pan or use an oversize threaded drain plug.

 

[gkent]

use an oversize threaded drain plug

???

 

[WileERobby]

???

Available in different sizes.

 

[toolmanmike]

If the mating surfaces are really flat than the problem has to be the plug to pan thread fit. If this s a pan that has seen a lot of oil changes than the pan threads may be worn. Solution is to either the pan or use an oversize threaded drain plug.