Housing can be integrated.It is not just the front side, so just in case, I exchanged in one piece. The O ring is also followed. Making is also good. Since it can not be exchanged unless the thermostat case is removed at the time of replacement, it may be necessary to replace the O ring on the side of the thermostat case.
With MG 22S type Moko. Purchased because Aisin made its handling finished. Unfortunately it was a defective item. I leaked from the lower tube inlet during idle after bleeding. Correspondence from in contact of defective products is quick and satisfied. Although it was after installation, it was returned goods easily because it was a level that can be seen by visual inspection of poor processing at the time of manufacturing. I would like to re-handle the Aisin of that model.