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Old 03-02-2012, 10:44 AM   #1
cozeinlb's Avatar
Join Date: Feb 2012
Location: Long Beach, NY
Posts: 187
O2 Sensor Thread Size?

Quick question. Does anybody know what thread size is for the O2 sensor off an 89 YJ 2.5L?

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Old 03-02-2012, 05:36 PM   #2
Join Date: Nov 2011
Location: Newark, Ohio
Posts: 7
18x1.50 Good luck, Ron

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Old 03-02-2012, 06:20 PM   #3
cozeinlb's Avatar
Join Date: Feb 2012
Location: Long Beach, NY
Posts: 187

Bought a new exhaust and it has an extra bung for an O2 sensor on the down pipe while mine is in the manifold. Been searching high and low for a bolt to plug it. Found exactly that a metric M18x1.5 threaded plug made especially for O2 sensors at www.Sv3Power.com. $2.95 for part and $8.00 bucks to ship but $10 is cheaper than sending the exhaust back. Now lets see if I can get the place I bought it from to kick back the $10 o me.
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