Fuel Tank Drain Plug
 

Does anyone know the size and thread pitch of the drain bolt on the bottom of the fuel tank? TIA.

Ha... Did not know there was a drain plug for the tank... I guess I need to take a better look at my spare fuel tank..

Not sure but here is the Mazda part number:
B596-42-045


It can be a little hard to find since Mazda sprayed undercoating over it.

I see... Good to know as I would need to drain mine also.

Don, Can you shoot some pics when you do this?? Maybe a write up?

Phil,

Most folks don't know it's there because its COVERED in undercoat spray from the factory...

Damn, you're a little too late... I just drained my tank and put fresh gas in. It is probably M12 x something. You could probably go to the hardware store and buy (or borrow) a pitch gauge to measure the threads. Or you could even just buy a few bolts for a couple bucks and toss the rejects into the "bucket-o-bolts" that everyone has in their garage.

Like others have said, the drain plug is covered in undercoat (and probably some grime), but it is still pretty easy to find. Just stick your head under the car and the plug should be staring you right in the face. Right on the bottom of the tank.

Step 1: Find plug & place container underneath
Step 2: Remove plug
Step 3: Watch gas come out (open gas cap for faster flow)
Step 4: Replace drain plug

I can take a pic this weekend if you want.

Well, I'm trying to experiment with something and need to know the size and thread pitch in order to see if it will work.