View Full Version : Motorcraft Thermostat Gasket?

11-24-2003, 04:08 AM
I recently acquired & installed a Motorcraft thermostat gasket from Rockauto.com for the 3.8 SC engine; part number RG564. After installing, I noted the interior dimensions of the gasket around the holes seemed to be correct, but the gaskset protuded out of the top from between the housing & intake. It also slightly extended past one other side, aligned with everything else. Could I have recieved the wrong gasket? If so were can I acquire the correct one quickly? Waiting to order is not an option, unfortunatley this also likely excludes my Ford dealer.


35th T-bird SC
11-24-2003, 04:15 AM
As long as the holes lined up and it doesn't leak it will be fine. A lot of gaskets are made slightly bigger and hang out at different spots. The stock water pump gasket does that.

11-24-2003, 05:19 AM
That is the correct gasket. It is unlikely that you will find a better fitting one, unless it was mis-packaged.

Here is a link to pics and more part numbers: