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2001 silverado o2 sensor 18mm

Updated: 12/12/2022
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15y ago

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It is a standard 7/8". There is a special socket with a groove cut in the side of it to take it out with the wires still attached. There are also four O2 sensors on your truck two before the catalytic convertor, and two after the catalytic convertor. I hope this helps you as I just changed all four on my truck.

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15y ago
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Q: 2001 silverado o2 sensor 18mm
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