The stock switch has it stamped on the side 100c/212f. 130c max. There was a supercession in part #'s. Dammit, I left the paper with the new one at home. Steve '84 5ksT 1.6-2.0 bar Disclaimer:"Any information contained herein is based purely on my own personal experience and may not necessarily reflect yours. Use caution as your results may vary from mine."