Delco G1852 temp sending unit?

[520CheyenneK10]

I just went through this and initially I Purchased and installed the AC Delco G1852 and it sent my gauge to the RED and back and forth. I laser temped it and the sensor was actually way off. I Was not going to buy the OE part number 01513321 for over a $100, so I instead went to a parts house other than A-Zone or the such and found that they routinely sell the Standard Motor Products part number TS6 with no customer return or dissatisfaction issues and I have had zero issues since.