Pic of Stant's "best" consumer radiator cap, specific part number for the FC3S.
Plastic parts of this radiator cap have deteriorated to the point of failure.
Part was bought from Rock Auto, so this is most likely a genuine part and not a knock-off.
This radiator cap only lasted a couple years with less than 10,000 miles.
Stant is one of the largest aftermarket radiator cap (and thermostat) manufacturer brands.
Safe to say that I will never buy another Stant radiator cap / thermostat again.
We recommend Mazda OEM for radiator caps and thermostats.
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