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cozeinlb 03-02-2012 10:44 AM

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

Laguna S-3 03-02-2012 05:36 PM

18x1.50 Good luck, Ron

cozeinlb 03-02-2012 06:20 PM


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 $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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