99 ls400 o2 sensor socket size

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Feb 4, 2010 | 07:51 AM
  #1  
Anyone know's the actual size of the socket to replace O2 sensor (bank 1-before the CAT) ?
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Feb 5, 2010 | 01:57 AM
  #2  
Use an O2 sensor socket wrench. You can loan one from Autozone, free.
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Feb 5, 2010 | 12:20 PM
  #3  
Try to find the 21mm socket, most places will sell a 7/8 or 22mm.
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