1996-2000 honda civic case thermostat 19320-p2a-000 oem 96hc2 | eBay
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I found this white gunk in the thermostat housing in my 1997 honda civic and there was no thermostat too so I installed one and burped the system now I just need
Honda Civic Type R 2006-2011 Thermostat Housing | Honda Direct Parts