The correct Trailteck vapor unit for a yerf or for any gy6 150 motor would be #752-201. The display units are all the same with the same features with the exception of the GPS models. The difference in the part numbers are the type of sending units supplied with the kit. #752-201 has the correct size temp sender that fits the gy6 sparkplug. The speed sensor in this particular kit is the same for most all the units and adapts to the buggy very well. The rest of the sensors are simply wired in at the appropriate locations on the motor.
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