gas furnace Bryant 383kav high limit switch part #

Hi everyone! Need original part number for Bryant 383kav024070 gas furnace - high limit switch Just moved in, and got series of furnace problems. Some are solved , but one - code 33, I don't know how, because there is definitely not original part installed and cheated . The switch is L250-40 which is way to much for my unit, but it cheated by added some diode resistor one one of the two connectors I'm assuming that the switch has to be something between L160-30 and L180-40 the unit is 80% efficiency, with 53000 BTUh air temp rise 40-70 deg F design max outlet air temp - 185 deg F can't find the right part number
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