What is the best way to plug one. I know that K&N sells o2 sensor plugs, but is there anyway to get something without ordering and waiting 3 weeks? Or anyone else that makes a plug?

 

Just get a bolt that fits and cut the end of it off so it doesn't stick in too much. I think they may be NPT threads but I'm not sure.

 

18mm oil pan bolt worked for me.

Ryan

 

Thats right! I have a ton of them at work.

 

I just heard that it was a bastard thread, and the local auto parts store could not find a nut to fit it. They did say that the closest thing they had was an oil pan bolt, but he did not want to open the package to see if it was close, or "it."

 

I use spark plugs. Not sure what kinda car they were out of......a 5.0l mustang I think.

Just knock the end off and plug it with a welder

 

I'm a little embarassed to say, but after an all day search I found that a spark plug (large thread) works great.

 

18mm x 1.5 mm thread pitch....same as "big" style sparkplugs....O2 sensors work too

 

Best thing about a 18mm X 1.50 drain plug is that if you care about asthectics(looks) for you unwashed heard the drain plugs fit flush and look sweet.

 

Thanks.

 

Summit or Jegs sell the O2 plugs as well!

 

cheapest and best place:
advance auto parts
back aisle, located with the oil plugs.
black yellow pack, 1.98+ tax.
ive bought a few of them.