John Deere Original Equipment Temperature Switch - RE503242.
Temperature Switch - TEMPERATURE SWITCH.
Specification - 
Mounting Style: A
Thread Size: 0.551IN
Thread Type: METRIC
Switch Function: SPST_NC
Sense Media: FLUID
Switch Temperature Range - Low - C°: 38.000UNITY
Switch Temperature Range - Hi - :°C 50.000UNITY
Maximum Operating Temperature: 0.00UNITY
Terminal Type_ ;PIGTAIL
Probe Depth: 0.433IN
Length: 0.992IN
Fits various John Deere models.
This is an OEM John Deere Part.