Fragola 1/8 FPT x 12mm X1.5 LS Temp Probe Adapter

If you're adding an aftermarket temperature gauge to your LS engine swap, you'll need a way to tap into the coolant system. This adapter from Fragola lets you install a temperature sending unit into a port that uses a 12mm x 1.5 thread size.

This fitting is well-built with a blue anodized finish for a clean look and some corrosion resistance. It has a 1/8" FPT (Female Pipe Thread) opening, which is a common size for many aftermarket temperature sensors. It's a straightforward piece that does exactly what it's supposed to do, making your wiring and plumbing a bit simpler.