Maruha Water Temperature Sensor Adapter · 1.8L Miata MX-5
Maruha's machined adapter for the 1.8L Miata's coolant system — allows installation of an accurate aftermarket water temperature sender at the correct measurement point. The OEM temperature gauge on NA8 and NB Miatas is not accurate enough for a tuned or track-driven car. This adapter is the correct solution for anyone adding a real water temperature gauge to their 1.8L build.
Specifications:

Machined adapter for 1.8L BP-ZE coolant passage
Accepts standard aftermarket water temperature sender
Installs at the correct coolant temperature measurement location
Required for accurate coolant temperature monitoring on modified 1.8L builds

Fitment: NA8 Miata 1994–1997 · NB Miata 1998–2005 · 1.8L BP-ZE engine.
Made in Japan. Authorized Maruha import by Chikara Motorsports — North America's only official Maruha dealer.