Used housing from the rear of the engine, Mazda MX5 & Eunos Roadster mk1 1.6 1989-98. Has the threaded hole in the top where the ECU temperature sensor fits and the connector for heater hose #1.

Note that this needs to be tightened up carefully and most importantly evenly, not one side all the way first - we sell most of these to people who have cracked them by tightening up wrongly.

Genuine Mazda part.

B61P15179A.  UM00231.