This Speed Engineering adapter is made for LS coolant temperature sensor ports. It threads into an M12x1.5 port and provides a 3/8" NPT female thread, so a sensor or fitting with that thread can be installed. The adapter is billet construction and comes with a washer.
Features:
- M12x1.5 Male to 3/8" NPT Female
- Billet Construction
- Washer Included
- For LS Engines
FAQ
What threads does this adapter have?
It has an M12x1.5 male thread on one side and a 3/8" NPT female thread on the other.
What is this adapter used for?
It is used in an LS coolant temperature sensor port to accept a sensor or fitting with a 3/8" NPT thread.
Does it come with a sealing washer?
Yes. A washer is included with the adapter.
What is the adapter made from?
The adapter is billet construction.

