What size O2 sockets does a Ford O2 sensor use? AFAIK or AFAIR, pretty much all the O2 sensors I've ever changed (or likely to change) will have used 22mm O2 sockets.

I just checked, on RockAuto, multiple O2 sensors for my '01 BMW, my wife's '14 Lexus ES350, and our three old ('98. '04. '09) GM trucks, and all use 22mm. I also checked a few Fords at random, and they used 22mm sockets.

I got a set of thick-walled BLACKROBOT 7-Piece Oxygen Sensor Socket Set on Amazon Vine, and they feel like there'll be no stretch nor give in them, made of thick-walled CRV steel. The set has a 1-1/16", a 27mm, and a 29mm socket, as well as four 22mm sockets: a 2.75" deep and a 3" deep std. socket (I don't have a metric measuring tool handy), a 1-1/4" deep and a 2" deep crowfoot pair.

I figure that it's better to be ready beforehand, so I picked up this set when it poped up on my feed.

__________________
01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide