Bill
the proper T-Stat is the Robertshaw #333-180. It is available from Summit Racing, stock number BRA-333-180. Summit lists the T-Stat as a Flow Kooler T-Stat. I've read elsewhere that the NAPA T-Stat #197 is also equivalent, but I haven't verified that.
If you can't find the correct T-Stat elsewhere, it can be purchased from Flow Kooler. I would prefer you did business elsewhere unless you have no other choice.
If the T-Stat doesn't look & function like the one pictured below, its the wrong one.
cowboy from hell
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