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What size/thread is a O2 sensor hole?

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Old 11-18-2006, 08:38 PM
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Default What size/thread is a O2 sensor hole?
I need to plug some O2 sensor holes on my x-pipe (for some reason, it has holes where the back O2 sensors would go, but its an off road pipe). Anyone know what size/thread fitting I need to "plug" these openings?

Thanks, Shawn
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Old 11-18-2006, 09:28 PM
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Oh man I forget the thread pitch, but it's 18mm diameter. It's the exact same as a spark plug. They have plug bolts that fit O2 bungs. They hang on a rack in Advance Auto stores, back by the oil and stuff.
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Old 11-20-2006, 03:24 PM
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Anyone know?
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Old 11-20-2006, 03:35 PM
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18mm x 1.5mm
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Old 11-20-2006, 03:36 PM
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If it has threaded bungs then get a couple of
Toyota oil pan drain plugs, 18mm size, off the
rack in the AutoZone/whatever oil change section.
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Old 11-20-2006, 06:27 PM
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Thank you.
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Old 11-20-2006, 10:10 PM
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Good info there!
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