Part No. for gasket that goes between oil pan and filter

I don't know what it's called (warmer or oil filter housing??) but I need a new gasket that goes between the oil warmer housing thingy (think that's the precise, shop-manual name for it) and the block. I also need to know the size of the nut that secures the warmer housing thingy to the block so I can try to find a deep socket capable of reaching said nut. Trying to avoid a trip to a mazda dealer, but it may be the best way to go...

This is for a '99 by the way.

TIA

That would be the oil cooler and we have the o-ring at tdr. Mazda dealer would too. I think the nut is a 28mm or 32mm.

I am not there but you can call Gary.

http://forum.miata.net/vb/showthread.php?t=442457

This thread has some useful info for you I think.

Thanks to both

Looks like it's a 28 mm nut, but a 1 and 1/8 socket will get the job done as well. I'll probably be by "some day" to get a new gasket. Thanks William.