Hardin Marine Oil / Water Temperature Sender (Gen II, 2019 and Later Gauges) 

Hardin Marine Water or Oil Temperature Sender - 2019 and Later Model Gauges
1/8" NPT sender with 1/4", 3/8" and 1/2" NPT bushing kit, Oil and Water Temp Sender

These electric temperature senders feature a brass non-corrosive body that allows the sender to transfer temperature extremely accurately. These senders include bushing kits to fit multiple size applications.