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O2 Sensor thread size?

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Old Mar 24, 2008 | 09:35 PM
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Default O2 Sensor thread size?
Anyone know what the thread size is on the O2 sensor? I somehow manager to gall the bung on my header and need to get a thread chaser.
TIA
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Old Mar 24, 2008 | 09:37 PM
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It's metric and I believe 17 mm.
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Old Mar 24, 2008 | 09:59 PM
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I had to chase the threads on the oxygen sensor bung after welding it in. Napa had a oxygen sensor thread chaser in stock for about $10.
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Old Mar 24, 2008 | 10:27 PM
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Very cool, thank you
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Old Mar 25, 2008 | 12:02 AM
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18 mm
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Old Mar 25, 2008 | 12:24 AM
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It's the same thread as the big spark plugs (18mm). If you have trouble finding an O2 sensor thread chaser you can use a spark plug chaser.
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