M10x1.0 to M12x1.0 Fitting Male Union Coupler Adapter M10-M12
Amazon.com: Metric M12 M12X1.5 Female to 3/8" Male NPT Pipe Fitting Gauge Adapter : Industrial & Scientific
Redline Emissions Products NOx / O2 Adapter Weld Bung (BG1026) - M12 X – DPF Parts Direct
Gitzo M12 to 3/8'' adapter - GS5000C | Gitzo US
Amazon.com: Metric Fitting Male M12 M12X1.25 to 3/8" NPT Pipe Adapter Gauge Meter : Automotive
Amazon.com: Yemtuls Reducer Fitting Metric M12-1.5 to 3/8 NPT Adapter Design for Adding 3/8 NPT Coolant Temperature Sensor to LS Engine with Factory M12-1.5 Female Coolant Sensor Port : Automotive
Engines Swap Gauge Adapter Male M12-1.5 to Female 3/8" NPT Coolant Temperature Sensor For LS Engine LS1 LSX - AliExpress