I finally got the sensor, install it, generator started and ran for two days. Coming in last week, the head sensor sensed high temp (generator out of water)and cut the generator off blowing a fuse in the process. I purchased a new head sensor today which stopped the blowing of fuses when I turned on the fuel pump but when I cranked the generator, it blew the fuse again. Before having the generator rebuilt, I ran out of water frequently and I thought the rebuild would stop this situation but apparently has not.