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M12X1.5 Adapter to 3/8 NPT Coolant Temperature Sensor Water for LS Series Engine Specification: Size:Male M12-1.5 to Female 3/8" NPT AdapterMaterial:AluminumColor SilverCompatible With: All GM LS Series EnginesAdapter has a female 3/8" NPT port, 0.85" deep. Package listing : 2 adapter2 sealing washer Feature: 1.Factory LS cylinder heads are machined with metric M12-1.5 coolant sensor ports, so your factory Small Block Chevy sensor won't thread in to them. This adapter allows you to keep your ori...

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