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Bolt to plug rear O2

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Old 02-22-2012, 09:27 PM
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Default Bolt to plug rear O2

What size bolt can I use to plug the rear O2 bung?
Old 02-22-2012, 11:29 PM
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18mm drain plug if I remember right. I asked this a while back.
Old 02-23-2012, 09:58 AM
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18mm Toyota oil plug is what I use.
Old 02-23-2012, 10:01 AM
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I keep 18mm Dorman Drain Plugs for this exact purpose
Old 02-23-2012, 10:02 AM
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use a spark plug in a pinch .
Old 02-27-2012, 06:23 AM
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I checked our dorrman book at work and didnt see an 18mm under toyota..majority were 19mm 13mm and 14mm..what number is the 18mm?

I found a short 18mm but i dont know if the threads are different




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