| I honestly didn't count them.... However, the sensors were almost identical except for the universals were slightly larger than the oem units. As far as performance goes, I have them installed and they seem to be working fine. The installation was actually simple too. The 2 two white wires were for the heater and were not polarity specific but I had to look up on line instructions to verify this. The package instructions did not clarify that. I would actually recommend these.
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