I have 2 as new and another used automotive thermostats,
but can't recall what they fit.
I am hoping someone can use it from the description as
follows:
Brass coloered one OD is 2-1/8 inches, and the diameter of
the inner ring is 1-5/8 inches and is about 1-3/4 inches tall.
There is no brand name but it is marked Patented and 180. $8
Stainless coloered one OD is 2 inches, and the diameter of
the inner ring is 1-1/8 inches and is about 1-3/4 inches tall.
There is the brand name Motorcraft 91-TM-8575-AA
Made In Germany 92/106. $15
Third is Ford Motorcraft Thermostat C5AE-8575-B Used Excellent
I have a good used Ford Motorcraft automotive thermostat, but can't recall
what it fits.
Part numberr dates to 1965
The OD is 2-1/2 inches, and the diameter of the inner ring is 2 inches
and is about 1-3/4 inches tall.
There is the marking C5AE-8575-B and 195 and Patented $15
Fourth is Ford flathead bellows type 1-3/4 in diameter
marked 181 and HRD 53. $8