ICT Billet 551149; Temp Sensor Adapter 12x1.5 male to 1/2 NPT female for GM LS
$25.27
This adapts SBC/BBC 1/2" NPT coolant temp sensors to fit LS series engines. Side B:1/2 in. NPT Female. Male M12-1.5 to Female 1/2" NPT. Fits: all GM LS Series Engines. Gauge Adapter Series:Temperature Sensor Adapter Fitting.