Why is everybody saying to get genuine sensor?
Whats the difference between genuine and replacement sensor if it is excatly for Mig?
Not
always the case, but have seen many times a pattern sensor not fix problems, fail early, cause other issues.
There are of course ones out there that will be fine, just not always a safe bet, sometimes price makes them the only option, but when only a small difference like most of them, we have seen far too often people having to buy cheap, then the original, and fight for a refund.
"Buy Cheap, Buy twice"
few pattern items known to be problematic, to more than 1-2 users:
HBV
Streering Idler
drop links
crank sensors
brake disks
hid bulbs
lambda sensors
brake light bulbs
of course not a definitive list (just a few I can recall off the top of my head) , and there are plenty of people out there who have some of these working perfectly. And also some people with genuine items have had problems too.