VDO Marine 323-801-004-002N M14 x 1.5 Thread Engine Oil Temperature Sensor with Single Pole & Common Ground - 50-150 deg C to 120-300 deg F - 6 to 24V - Walmart.com
1PCS Water Temperature Sensor For VDO 3W 6~24V 120℃ 1/2NPT 3/8NPT M14 x 1.5 | eBay
VDO Temperature Switch/Sending Unit 6-24V 3W 170°C +-5°C
VDO 6 volt German Water Temp and Oil Pressure Gauges | eBay
Veratron Coolant Temperature Sensor - 40 to 120C - 3/8 - 18 DRYSEAL NPTF [323-805-001-005N]