Bosh WB Sensor - What is this?

[Jerryl]

What is the part on the connector the arrow is pointing to?
I don't remember this on the sensor on the car.
This is my spare I just got in.

 

[87geeinn]

Dunno? the two WB sensors I've used had that. Never seen a different one.

 

[Jerryl]

Dunno? the two WB sensors I've used had that. Never seen a different one.

OK, must be my CRS.
Thanks!

 

[BRAD_PADGETT]

Jerryl- The wideband I just got is identical to yours pictured above. Thanks- Brad