WOWAgreed.. bought a starter solenoid for my Kabota tractor from Amazon. It said Genuine Kabota Parts. First one would not work at all. Exchanged it and the replacement lasted bout two months.
Ordered one from the Kabota dealer. After getting the one directly from Kabota dealer and comparing them there were definitely some difference on the outside.
Later on I took the original apart and the one I got from Amazon. Big difference so it had to be a knockoff.


