Coolant Temperature Sensor Adapter M12-1.5 To NPT For LS1 LS3 LSX Engines (Aluminum)

Got an LS swap and need to get your coolant temp sensor to fit?

This little aluminum adapter is what you need.

It goes from M12-1.5 (common on newer sensors) to a female NPT thread—probably 1/8 or 3/8, but you'll want to double-check your setup.

Includes a washer to help seal it.

Works on all LS series engines: LS1, LS3, LSX, you name it.

Simple, cheap, and saves you from hacking up your intake or heads.