Sensor in freeze plug?

[D33SUMS]

Hey guys. So I’m trying to identify my block to make sure it’s a true 4g63t block, (vin number is not where it’s supposed to be, it’s blank) and I come across this sensor in the freeze plug. Anyone know what it is....can’t find any info on it....thanks.

 

[Hickory-NC-2Ggsx]

Looks like a block heater.

 

[2gmitsueclipse]

For sure a block heater. If you pull it out, you should see something like the pic below:

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[D33SUMS]

For sure a block heater. If you pull it out, you should see something like the pic below:

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You guys are awesome. Thanks for the help!!

Looks like a block heater.

Appreciate the help!!

 

[motomattx]

The lack of a vin on the block says that its been replaced by a new block from the factory as some point, its not the original that came in any Dsm.

 

[spyderdrifter]

Only time I've seen the VIN removed is on a refurbished/remanufactured block.